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UniProtKB - O43157 (PLXB1_HUMAN)

Entry version 192 (25 May 2022)
Sequence version 3 (31 Aug 2004)
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Protein

Plexin-B1

Gene

PLXNB1

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Receptor for SEMA4D (PubMed:19843518, PubMed:20877282, PubMed:21912513).

Plays a role in GABAergic synapse development (By similarity).

Mediates SEMA4A- and SEMA4D-dependent inhibitory synapse development (By similarity).

Plays a role in RHOA activation and subsequent changes of the actin cytoskeleton (PubMed:12196628, PubMed:15210733).

Plays a role in axon guidance, invasive growth and cell migration (PubMed:12198496).

By similarity6 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei1815Important for interaction with RAC1 and RND11

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionReceptor

Enzyme and pathway databases

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		O43157

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-416482, G alpha (12/13) signalling events
R-HSA-416550, Sema4D mediated inhibition of cell attachment and migration
R-HSA-416572, Sema4D induced cell migration and growth-cone collapse
R-HSA-9013405, RHOD GTPase cycle

SignaLink: a signaling pathway resource with multi-layered regulatory networks

More...SignaLinki		O43157

SIGNOR Signaling Network Open Resource

More...SIGNORi		O43157

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Plexin-B1
Alternative name(s):
Semaphorin receptor SEP
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:PLXNB1
Synonyms:KIAA0407, PLXN5, SEP
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 3

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:9103, PLXNB1

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		601053, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_O43157

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000164050

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini20 – 1490ExtracellularSequence analysisAdd BLAST1471
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei1491 – 1511HelicalSequence analysisAdd BLAST21
Topological domaini1512 – 2135CytoplasmicSequence analysisAdd BLAST624

Keywords - Cellular componenti

Cell membrane, Membrane, Secreted

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi139D → K: Strongly reduced interaction with SEMA4D. 1 Publication1
Mutagenesisi1302 – 1305RRRR → AAAA: Abolishes cleavage by proprotein convertases. 1 Publication4
Mutagenesisi1815L → F or P: Abolishes interaction with RAC1 and RND1. 1 Publication1
Mutagenesisi1884 – 1885WH → SS: Loss of cytoskeleton remodeling in response to SEMA4D. 1 Publication2

Organism-specific databases

DisGeNET

More...DisGeNETi		5364

Open Targets

More...OpenTargetsi		ENSG00000164050

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA33429

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		O43157, Tbio

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		PLXNB1

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 19Sequence analysisAdd BLAST19
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000002467120 – 2135Plexin-B1Add BLAST2116

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi31N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi79 ↔ 88PROSITE-ProRule annotation
Disulfide bondi111 ↔ 119PROSITE-ProRule annotation
Disulfide bondi252 ↔ 377PROSITE-ProRule annotation
Disulfide bondi268 ↔ 322PROSITE-ProRule annotation
Glycosylationi334N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi340 ↔ 364PROSITE-ProRule annotation
Disulfide bondi482 ↔ 499PROSITE-ProRule annotation
Disulfide bondi488 ↔ 533PROSITE-ProRule annotation
Disulfide bondi491 ↔ 508PROSITE-ProRule annotation
Disulfide bondi502 ↔ 514PROSITE-ProRule annotation
Glycosylationi543N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi570 ↔ 588PROSITE-ProRule annotation
Glycosylationi1183N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi1253N-linked (GlcNAc...) asparagine3 Publications1
Glycosylationi1330N-linked (GlcNAc...) asparagine1 Publication1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Phosphorylated on tyrosine residues by ERBB2 and MET upon SEMA4D binding.2 Publications
Proteolytic processing favors heterodimerization with PLXNB2 and SEMA4D binding.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei1305 – 1306Cleavage; by proprotein convertases2

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		O43157

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		O43157

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		O43157

MaxQB - The MaxQuant DataBase

More...MaxQBi		O43157

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		O43157

PeptideAtlas

More...PeptideAtlasi		O43157

PRoteomics IDEntifications database

More...PRIDEi		O43157

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		48777 [O43157-1]
48778 [O43157-2]
48779 [O43157-3]

PTM databases

GlyConnect protein glycosylation platform

More...GlyConnecti		1612, 7 N-Linked glycans (2 sites)

GlyGen: Computational and Informatics Resources for Glycoscience

More...GlyGeni		O43157, 10 sites, 10 N-linked glycans (2 sites), 2 O-linked glycans (4 sites)

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		O43157

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		O43157

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Highly expressed in fetal kidney, and at slightly lower levels in fetal brain, lung and liver.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000164050, Expressed in right uterine tube and 203 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		O43157, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000164050, Low tissue specificity

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Monomer, and heterodimer with PLXNB2 after proteolytic processing (PubMed:12533544, PubMed:17916560, PubMed:18411422, PubMed:18275816, PubMed:19843518, PubMed:20877282, PubMed:21912513). Binds RAC1 that has been activated by GTP binding (PubMed:11035813, PubMed:17916560, PubMed:18275816, PubMed:19843518). Interaction with SEMA4D promotes binding of cytoplasmic ligands (PubMed:10520995, PubMed:12198496, PubMed:19843518).

Interacts with PLXNA1 (By similarity).

Interacts with ARHGEF11 and ARHGEF12 (PubMed:12196628).

Interacts with ERBB2 (PubMed:15210733).

Interacts with MET (PubMed:12198496, PubMed:15184888).

Interacts with MST1R (PubMed:15184888).

Interacts with RRAS (PubMed:19843518).

Interacts with RHOD (PubMed:17916560).

Interacts with RND1 (PubMed:12730235, PubMed:17916560, PubMed:18275816, PubMed:19843518).

Interacts with NRP1 and NRP2 (PubMed:10520995).

By similarity14 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		111377, 36 interactors

CORUM comprehensive resource of mammalian protein complexes

More...CORUMi		O43157

Database of interacting proteins

More...DIPi		DIP-36742N

Protein interaction database and analysis system

More...IntActi		O43157, 23 interactors

Molecular INTeraction database

More...MINTi		O43157

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000351338

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		O43157, protein

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

12135
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

AlphaFold Protein Structure Database

More...AlphaFoldDBi		O43157

Biological Magnetic Resonance Data Bank

More...BMRBi		O43157

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		O43157

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		O43157

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini20 – 479SemaPROSITE-ProRule annotationAdd BLAST460
Domaini1070 – 1160IPT/TIG 1Add BLAST91
Domaini1162 – 1249IPT/TIG 2Add BLAST88
Domaini1252 – 1375IPT/TIG 3Add BLAST124

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni671 – 829DisorderedSequence analysisAdd BLAST159
Regioni849 – 884DisorderedSequence analysisAdd BLAST36
Regioni1883 – 1908DisorderedSequence analysisAdd BLAST26

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili1507 – 1539Sequence analysisAdd BLAST33

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi683 – 701Pro residuesSequence analysisAdd BLAST19
Compositional biasi740 – 754Polar residuesSequence analysisAdd BLAST15
Compositional biasi755 – 769Pro residuesSequence analysisAdd BLAST15
Compositional biasi798 – 819Pro residuesSequence analysisAdd BLAST22

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the plexin family.Curated

Keywords - Domaini

Coiled coil, Repeat, Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG3610, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT01020000230394

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_001436_1_1_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		O43157

Identification of Orthologs from Complete Genome Data

More...OMAi		DAFPCGS

Database of Orthologous Groups

More...OrthoDBi		90434at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		O43157

TreeFam database of animal gene trees

More...TreeFami		TF312962

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.10.506.10, 2 hits
2.130.10.10, 1 hit
2.60.40.10, 4 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR013783, Ig-like_fold
IPR014756, Ig_E-set
IPR002909, IPT_dom
IPR031148, Plexin
IPR013548, Plexin_cytoplasmic_RasGAP_dom
IPR002165, Plexin_repeat
IPR016201, PSI
IPR008936, Rho_GTPase_activation_prot
IPR001627, Semap_dom
IPR036352, Semap_dom_sf
IPR041019, TIG1_plexin
IPR041362, TIG2_plexin
IPR015943, WD40/YVTN_repeat-like_dom_sf

The PANTHER Classification System

More...PANTHERi		PTHR22625, PTHR22625, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF08337, Plexin_cytopl, 1 hit
PF01437, PSI, 1 hit
PF01403, Sema, 1 hit
PF01833, TIG, 3 hits
PF18020, TIG_2, 1 hit
PF17960, TIG_plexin, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00429, IPT, 3 hits
SM00423, PSI, 3 hits
SM00630, Sema, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF101912, SSF101912, 1 hit
SSF48350, SSF48350, 1 hit
SSF81296, SSF81296, 3 hits

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS51004, SEMA, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (3)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 3 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: O43157-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <p><strong>What is the canonical sequence?</strong><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MPALGPALLQ ALWAGWVLTL QPLPPTAFTP NGTYLQHLAR DPTSGTLYLG 
        60         70         80         90        100
ATNFLFQLSP GLQLEATVST GPVLDSRDCL PPVMPDECPQ AQPTNNPNQL 
       110        120        130        140        150
LLVSPGALVV CGSVHQGVCE QRRLGQLEQL LLRPERPGDT QYVAANDPAV 
       160        170        180        190        200
STVGLVAQGL AGEPLLFVGR GYTSRGVGGG IPPITTRALW PPDPQAAFSY 
       210        220        230        240        250
EETAKLAVGR LSEYSHHFVS AFARGASAYF LFLRRDLQAQ SRAFRAYVSR 
       260        270        280        290        300
VCLRDQHYYS YVELPLACEG GRYGLIQAAA VATSREVAHG EVLFAAFSSA 
       310        320        330        340        350
APPTVGRPPS AAAGASGASA LCAFPLDEVD RLANRTRDAC YTREGRAEDG 
       360        370        380        390        400
TEVAYIEYDV NSDCAQLPVD TLDAYPCGSD HTPSPMASRV PLEATPILEW 
       410        420        430        440        450
PGIQLTAVAV TMEDGHTIAF LGDSQGQLHR VYLGPGSDGH PYSTQSIQQG 
       460        470        480        490        500
SAVSRDLTFD GTFEHLYVMT QSTLLKVPVA SCAQHLDCAS CLAHRDPYCG 
       510        520        530        540        550
WCVLLGRCSR RSECSRGQGP EQWLWSFQPE LGCLQVAAMS PANISREETR 
       560        570        580        590        600
EVFLSVPDLP PLWPGESYSC HFGEHQSPAL LTGSGVMCPS PDPSEAPVLP 
       610        620        630        640        650
RGADYVSVSV ELRFGAVVIA KTSLSFYDCV AVTELRPSAQ CQACVSSRWG 
       660        670        680        690        700
CNWCVWQHLC THKASCDAGP MVASHQSPLV SPDPPARGGP SPSPPTAPKA 
       710        720        730        740        750
LATPAPDTLP VEPGAPSTAT ASDISPGASP SLLSPWGPWA GSGSISSPGS 
       760        770        780        790        800
TGSPLHEEPS PPSPQNGPGT AVPAPTDFRP SATPEDLLAS PLSPSEVAAV 
       810        820        830        840        850
PPADPGPEAL HPTVPLDLPP ATVPATTFPG AMGSVKPALD WLTREGGELP 
       860        870        880        890        900
EADEWTGGDA PAFSTSTLLS GDGDSAELEG PPAPLILPSS LDYQYDTPGL 
       910        920        930        940        950
WELEEATLGA SSCPCVESVQ GSTLMPVHVE REIRLLGRNL HLFQDGPGDN 
       960        970        980        990       1000
ECVMELEGLE VVVEARVECE PPPDTQCHVT CQQHQLSYEA LQPELRVGLF 
      1010       1020       1030       1040       1050
LRRAGRLRVD SAEGLHVVLY DCSVGHGDCS RCQTAMPQYG CVWCEGERPR 
      1060       1070       1080       1090       1100
CVTREACGEA EAVATQCPAP LIHSVEPLTG PVDGGTRVTI RGSNLGQHVQ 
      1110       1120       1130       1140       1150
DVLGMVTVAG VPCAVDAQEY EVSSSLVCIT GASGEEVAGA TAVEVPGRGR 
      1160       1170       1180       1190       1200
GVSEHDFAYQ DPKVHSIFPA RGPRAGGTRL TLNGSKLLTG RLEDIRVVVG 
      1210       1220       1230       1240       1250
DQPCHLLPEQ QSEQLRCETS PRPTPATLPV AVWFGATERR LQRGQFKYTL 
      1260       1270       1280       1290       1300
DPNITSAGPT KSFLSGGREI CVRGQNLDVV QTPRIRVTVV SRMLQPSQGL 
      1310       1320       1330       1340       1350
GRRRRVVPET ACSLGPSCSS QQFEEPCHVN SSQLITCRTP ALPGLPEDPW 
      1360       1370       1380       1390       1400
VRVEFILDNL VFDFATLNPT PFSYEADPTL QPLNPEDPTM PFRHKPGSVF 
      1410       1420       1430       1440       1450
SVEGENLDLA MSKEEVVAMI GDGPCVVKTL TRHHLYCEPP VEQPLPRHHA 
      1460       1470       1480       1490       1500
LREAPDSLPE FTVQMGNLRF SLGHVQYDGE SPGAFPVAAQ VGLGVGTSLL 
      1510       1520       1530       1540       1550
ALGVIIIVLM YRRKSKQALR DYKKVQIQLE NLESSVRDRC KKEFTDLMTE 
      1560       1570       1580       1590       1600
MTDLTSDLLG SGIPFLDYKV YAERIFFPGH RESPLHRDLG VPESRRPTVE 
      1610       1620       1630       1640       1650
QGLGQLSNLL NSKLFLTKFI HTLESQRTFS ARDRAYVASL LTVALHGKLE 
      1660       1670       1680       1690       1700
YFTDILRTLL SDLVAQYVAK NPKLMLRRTE TVVEKLLTNW MSICLYTFVR 
      1710       1720       1730       1740       1750
DSVGEPLYML FRGIKHQVDK GPVDSVTGKA KYTLNDNRLL REDVEYRPLT 
      1760       1770       1780       1790       1800
LNALLAVGPG AGEAQGVPVK VLDCDTISQA KEKMLDQLYK GVPLTQRPDP 
      1810       1820       1830       1840       1850
RTLDVEWRSG VAGHLILSDE DVTSEVQGLW RRLNTLQHYK VPDGATVALV 
      1860       1870       1880       1890       1900
PCLTKHVLRE NQDYVPGERT PMLEDVDEGG IRPWHLVKPS DEPEPPRPRR 
      1910       1920       1930       1940       1950
GSLRGGERER AKAIPEIYLT RLLSMKGTLQ KFVDDLFQVI LSTSRPVPLA 
      1960       1970       1980       1990       2000
VKYFFDLLDE QAQQHGISDQ DTIHIWKTNS LPLRFWINII KNPQFVFDVQ 
      2010       2020       2030       2040       2050
TSDNMDAVLL VIAQTFMDAC TLADHKLGRD SPINKLLYAR DIPRYKRMVE 
      2060       2070       2080       2090       2100
RYYADIRQTV PASDQEMNSV LAELSWNYSG DLGARVALHE LYKYINKYYD 
      2110       2120       2130 
QIITALEEDG TAQKMQLGYR LQQIAAAVEN KVTDL
Length:2,135
Mass (Da):232,298
Last modified:August 31, 2004 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i12A81B68AF1D340F
GO
Isoform 2 (identifier: O43157-2) [UniParc]FASTAAdd to basket
Also known as: Isoform R

The sequence of this isoform differs from the canonical sequence as follows:
     688-870: Missing.

Show »
Length:1,952
Mass (Da):214,411
Checksum:iFCAD0630E128EE9C
GO
Isoform 3 (identifier: O43157-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     677-729: SPLVSPDPPA...TASDISPGAS → VMETQQSLRA...PVWRAFRAPR
     730-2135: Missing.

Show »
Length:729
Mass (Da):78,395
Checksum:i4AE56E0EDBAE6D75
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence BAA23703 differs from that shown. Reason: Erroneous initiation. Extended N-terminus.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti1297S → N in CAB57277 (PubMed:8570614).Curated1
Sequence conflicti1625S → T in CAB57277 (PubMed:8570614).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_050598389R → W. Corresponds to variant dbSNP:rs34050056Ensembl.1
Natural variantiVAR_050599753S → L. Corresponds to variant dbSNP:rs35592743EnsemblClinVar.1
Natural variantiVAR_0360741891D → V in a breast cancer sample; somatic mutation. 1 Publication1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_011513677 – 729SPLVS…SPGAS → VMETQQSLRALPPPSSSRPA STTSMTPPGSGSWKRRPWGQ APAPVWRAFRAPR in isoform 3. 1 PublicationAdd BLAST53
Alternative sequenceiVSP_011514688 – 870Missing in isoform 2. 1 PublicationAdd BLAST183
Alternative sequenceiVSP_011515730 – 2135Missing in isoform 3. 1 PublicationAdd BLAST1406

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AB007867 mRNA Translation: BAA23703.2 Different initiation.
AJ011414 mRNA Translation: CAB56221.1
AJ011415 mRNA Translation: CAB56222.1
X87904 mRNA Translation: CAB57277.1
CH471055 Genomic DNA Translation: EAW64865.1
BC146793 mRNA Translation: AAI46794.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS2765.1 [O43157-1]

NCBI Reference Sequences

More...RefSeqi		NP_001123554.1, NM_001130082.2 [O43157-1]
NP_002664.2, NM_002673.5 [O43157-1]
XP_016862120.1, XM_017006631.1 [O43157-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000296440.11; ENSP00000296440.6; ENSG00000164050.13
ENST00000358536.8; ENSP00000351338.4; ENSG00000164050.13
ENST00000449094.5; ENSP00000395987.1; ENSG00000164050.13 [O43157-3]
ENST00000456774.5; ENSP00000414199.1; ENSG00000164050.13 [O43157-2]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		5364

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:5364

Matched Annotation from NCBI and EMBL-EBI (MANE) - Phase one

More...MANE-Selecti		ENST00000296440.11; ENSP00000296440.6; NM_001130082.3; NP_001123554.1

UCSC genome browser

More...UCSCi		uc003csu.3, human [O43157-1]

Keywords - Coding sequence diversityi

Alternative splicing

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross%5Freferences%5Fsection">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

Atlas of Genetics and Cytogenetics in Oncology and Haematology

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB007867 mRNA Translation: BAA23703.2 Different initiation.
AJ011414 mRNA Translation: CAB56221.1
AJ011415 mRNA Translation: CAB56222.1
X87904 mRNA Translation: CAB57277.1
CH471055 Genomic DNA Translation: EAW64865.1
BC146793 mRNA Translation: AAI46794.1
CCDSiCCDS2765.1 [O43157-1]
RefSeqiNP_001123554.1, NM_001130082.2 [O43157-1]
NP_002664.2, NM_002673.5 [O43157-1]
XP_016862120.1, XM_017006631.1 [O43157-1]

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2JPHNMR-A1743-1862[»]
2OS6NMR-B2128-2135[»]
2R2OX-ray2.00A/B1743-1862[»]
2REXX-ray2.30A/C1743-1862[»]
3HM6X-ray2.40X1511-2135[»]
3OL2X-ray2.99B20-535[»]
3SU8X-ray3.20X1533-2135[»]
3SUAX-ray4.39D/E/F1511-2135[»]
5B4WX-ray2.60A/B/C/D/E/F20-535[»]
AlphaFoldDBiO43157
BMRBiO43157
SMRiO43157
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi111377, 36 interactors
CORUMiO43157
DIPiDIP-36742N
IntActiO43157, 23 interactors
MINTiO43157
STRINGi9606.ENSP00000351338

PTM databases

GlyConnecti1612, 7 N-Linked glycans (2 sites)
GlyGeniO43157, 10 sites, 10 N-linked glycans (2 sites), 2 O-linked glycans (4 sites)
iPTMnetiO43157
PhosphoSitePlusiO43157

Genetic variation databases

BioMutaiPLXNB1

Proteomic databases

EPDiO43157
jPOSTiO43157
MassIVEiO43157
MaxQBiO43157
PaxDbiO43157
PeptideAtlasiO43157
PRIDEiO43157
ProteomicsDBi48777 [O43157-1]
48778 [O43157-2]
48779 [O43157-3]

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		49406, 287 antibodies from 31 providers

The DNASU plasmid repository

More...DNASUi		5364

Genome annotation databases

EnsembliENST00000296440.11; ENSP00000296440.6; ENSG00000164050.13
ENST00000358536.8; ENSP00000351338.4; ENSG00000164050.13
ENST00000449094.5; ENSP00000395987.1; ENSG00000164050.13 [O43157-3]
ENST00000456774.5; ENSP00000414199.1; ENSG00000164050.13 [O43157-2]
GeneIDi5364
KEGGihsa:5364
MANE-SelectiENST00000296440.11; ENSP00000296440.6; NM_001130082.3; NP_001123554.1
UCSCiuc003csu.3, human [O43157-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		5364
DisGeNETi5364

GeneCards: human genes, protein and diseases

More...GeneCardsi		PLXNB1
HGNCiHGNC:9103, PLXNB1
HPAiENSG00000164050, Low tissue specificity
MIMi601053, gene
neXtProtiNX_O43157
OpenTargetsiENSG00000164050
PharmGKBiPA33429
VEuPathDBiHostDB:ENSG00000164050

Human Unidentified Gene-Encoded large proteins database

More...HUGEi		Search...

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG3610, Eukaryota
GeneTreeiENSGT01020000230394
HOGENOMiCLU_001436_1_1_1
InParanoidiO43157
OMAiDAFPCGS
OrthoDBi90434at2759
PhylomeDBiO43157
TreeFamiTF312962

Enzyme and pathway databases

PathwayCommonsiO43157
ReactomeiR-HSA-416482, G alpha (12/13) signalling events
R-HSA-416550, Sema4D mediated inhibition of cell attachment and migration
R-HSA-416572, Sema4D induced cell migration and growth-cone collapse
R-HSA-9013405, RHOD GTPase cycle
SignaLinkiO43157
SIGNORiO43157

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		5364, 14 hits in 1082 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		PLXNB1, human
EvolutionaryTraceiO43157

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		PLXNB1

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		5364
PharosiO43157, Tbio

Protein Ontology

More...PROi		PR:O43157
RNActiO43157, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000164050, Expressed in right uterine tube and 203 other tissues
GenevisibleiO43157, HS

Family and domain databases

Gene3Di1.10.506.10, 2 hits
2.130.10.10, 1 hit
2.60.40.10, 4 hits
InterProiView protein in InterPro
IPR013783, Ig-like_fold
IPR014756, Ig_E-set
IPR002909, IPT_dom
IPR031148, Plexin
IPR013548, Plexin_cytoplasmic_RasGAP_dom
IPR002165, Plexin_repeat
IPR016201, PSI
IPR008936, Rho_GTPase_activation_prot
IPR001627, Semap_dom
IPR036352, Semap_dom_sf
IPR041019, TIG1_plexin
IPR041362, TIG2_plexin
IPR015943, WD40/YVTN_repeat-like_dom_sf
PANTHERiPTHR22625, PTHR22625, 1 hit
PfamiView protein in Pfam
PF08337, Plexin_cytopl, 1 hit
PF01437, PSI, 1 hit
PF01403, Sema, 1 hit
PF01833, TIG, 3 hits
PF18020, TIG_2, 1 hit
PF17960, TIG_plexin, 1 hit
SMARTiView protein in SMART
SM00429, IPT, 3 hits
SM00423, PSI, 3 hits
SM00630, Sema, 1 hit
SUPFAMiSSF101912, SSF101912, 1 hit
SSF48350, SSF48350, 1 hit
SSF81296, SSF81296, 3 hits
PROSITEiView protein in PROSITE
PS51004, SEMA, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiPLXB1_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: O43157
Secondary accession number(s): A6H8Y2
, Q6NY20, Q9UIV7, Q9UJ92, Q9UJ93
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 31, 2004
Last sequence update: August 31, 2004
Last modified: May 25, 2022
This is version 192 of the entry and version 3 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Reference proteome

Documents

  1. Human chromosome 3
    Human chromosome 3: entries, gene names and cross-references to MIM
  2. Human entries with genetic variants
    List of human entries with genetic variants
  3. Human variants curated from literature reports
    Index of human variants curated from literature reports
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  5. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  6. SIMILARITY comments
    Index of protein domains and families
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