Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

UniProtKB - P26599 (PTBP1_HUMAN)

Entry version 225 (11 Dec 2019)
Sequence version 1 (01 Aug 1992)
Previous versions | rss
Help videoAdd a publicationFeedback
Protein

Polypyrimidine tract-binding protein 1

Gene

PTBP1

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

Plays a role in pre-mRNA splicing and in the regulation of alternative splicing events. Activates exon skipping of its own pre-mRNA during muscle cell differentiation. Binds to the polypyrimidine tract of introns. May promote RNA looping when bound to two separate polypyrimidine tracts in the same pre-mRNA. May promote the binding of U2 snRNP to pre-mRNA. Cooperates with RAVER1 to modulate switching between mutually exclusive exons during maturation of the TPM1 pre-mRNA. Represses the splicing of MAPT/Tau exon 10 (PubMed:15009664). In case of infection by picornaviruses, binds to the viral internal ribosome entry site (IRES) and stimulates the IRES-mediated translation (PubMed:21518806).6 Publications

<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 functionActivator, Repressor, RNA-binding
Biological processmRNA processing, mRNA splicing

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-6803529 FGFR2 alternative splicing
R-HSA-72163 mRNA Splicing - Major Pathway
R-HSA-72203 Processing of Capped Intron-Containing Pre-mRNA

<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_and_taxonomy_section">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:
Polypyrimidine tract-binding protein 1
Short name:
PTB
Alternative name(s):
57 kDa RNA-binding protein PPTB-1
Heterogeneous nuclear ribonucleoprotein I
Short name:
hnRNP I
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:PTBP1
Synonyms:PTB
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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_manual">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 19

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...EuPathDBi		HostDB:ENSG00000011304.17

Human Gene Nomenclature Database

More...HGNCi		HGNC:9583 PTBP1

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		600693 gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_P26599

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

<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

Organism-specific databases

DisGeNET

More...DisGeNETi		5725

Open Targets

More...OpenTargetsi		ENSG00000011304

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA33934

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		P26599 Tbio

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL1293230

Polymorphism and mutation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		PTBP1

Domain mapping of disease mutations (DMDM)

More...DMDMi		131528

<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 describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000817371 – 531Polypyrimidine tract-binding protein 1Add BLAST531

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei1N-acetylmethionineCombined sources1 Publication1
Modified residuei16PhosphoserineCombined sources1
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes <strong>covalent linkages</strong> of various types formed <strong>between two proteins (interchain cross-links)</strong> or <strong>between two parts of the same protein (intrachain cross-links)</strong>, except the disulfide bonds that are annotated in the <a href="http://www.uniprot.org/manual/disulfid">'Disulfide bond'</a> subsection.<p><a href='/help/crosslnk' target='_top'>More...</a></p>Cross-linki65Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources
Modified residuei127PhosphotyrosineCombined sources1
Modified residuei138PhosphothreonineCombined sources1
Modified residuei141PhosphoserineCombined sources1
Cross-linki218Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources
Modified residuei433PhosphoserineCombined sources1

Keywords - PTMi

Acetylation, Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		P26599

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P26599

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		P26599

MaxQB - The MaxQuant DataBase

More...MaxQBi		P26599

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

More...PaxDbi		P26599

PeptideAtlas

More...PeptideAtlasi		P26599

PRoteomics IDEntifications database

More...PRIDEi		P26599

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		54354 [P26599-1]
54355 [P26599-2]
54356 [P26599-3]

Consortium for Top Down Proteomics

More...TopDownProteomicsi		P26599-1 [P26599-1]
P26599-2 [P26599-2]

2D gel databases

Two-dimensional polyacrylamide gel electrophoresis database from the Geneva University Hospital

More...SWISS-2DPAGEi		P26599

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		P26599

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

More...PhosphoSitePlusi		P26599

SwissPalm database of S-palmitoylation events

More...SwissPalmi		P26599

<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

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000011304 Expressed in 241 organ(s), highest expression level in embryo

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		P26599 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		P26599 HS

Organism-specific databases

Human Protein Atlas

More...HPAi		CAB013507

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Monomer.

Part of a ternary complex containing KHSRP, PTBP1, PTBP2 and HNRPH1.

Interacts with RAVER1 and SFPQ.

3 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">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="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Show more details

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...BioGridi		111697, 245 interactors

CORUM comprehensive resource of mammalian protein complexes

More...CORUMi		P26599

The Eukaryotic Linear Motif resource for Functional Sites in Proteins

More...ELMi		P26599

Protein interaction database and analysis system

More...IntActi		P26599, 66 interactors

Molecular INTeraction database

More...MINTi		P26599

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000349428

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		P26599 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

1531
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...SMRi		P26599

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		P26599

<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_and_domains_section">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>Domaini59 – 143RRM 1PROSITE-ProRule annotationAdd BLAST85
Domaini184 – 260RRM 2PROSITE-ProRule annotationAdd BLAST77
Domaini337 – 411RRM 3PROSITE-ProRule annotationAdd BLAST75
Domaini454 – 529RRM 4PROSITE-ProRule annotationAdd BLAST76

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 amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi316 – 323Poly-Ala8

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG1190 Eukaryota
ENOG410XPMZ LUCA

Ensembl GeneTree

More...GeneTreei		ENSGT00950000182683

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		HOG000231699

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P26599

KEGG Orthology (KO)

More...KOi		K13218

Database of Orthologous Groups

More...OrthoDBi		1545178at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		P26599

TreeFam database of animal gene trees

More...TreeFami		TF319824

Family and domain databases

Conserved Domains Database

More...CDDi		cd12777 RRM1_PTBP1, 1 hit
cd12693 RRM2_PTBP1_like, 1 hit
cd12695 RRM3_PTBP1, 1 hit

Database of protein disorder

More...DisProti		DP01601

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.30.70.330, 4 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR006536 HnRNP-L/PTB
IPR012677 Nucleotide-bd_a/b_plait_sf
IPR034798 PTBP1/2/3_RRM2
IPR021790 PTBP1_RRM
IPR035000 PTBP1_RRM1
IPR035001 PTBP1_RRM3
IPR035979 RBD_domain_sf
IPR000504 RRM_dom

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00076 RRM_1, 1 hit
PF11835 RRM_8, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00360 RRM, 4 hits

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF54928 SSF54928, 4 hits

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01649 hnRNP-L_PTB, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50102 RRM, 4 hits

<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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

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
Note: Additional isoforms seem to exist.

This entry has 3 described isoforms and 11 potential isoforms that are computationally mapped.Show allAlign All

Isoform 1 (identifier: P26599-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><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
MDGIVPDIAV GTKRGSDELF STCVTNGPFI MSSNSASAAN GNDSKKFKGD 
        60         70         80         90        100
SRSAGVPSRV IHIRKLPIDV TEGEVISLGL PFGKVTNLLM LKGKNQAFIE 
       110        120        130        140        150
MNTEEAANTM VNYYTSVTPV LRGQPIYIQF SNHKELKTDS SPNQARAQAA 
       160        170        180        190        200
LQAVNSVQSG NLALAASAAA VDAGMAMAGQ SPVLRIIVEN LFYPVTLDVL 
       210        220        230        240        250
HQIFSKFGTV LKIITFTKNN QFQALLQYAD PVSAQHAKLS LDGQNIYNAC 
       260        270        280        290        300
CTLRIDFSKL TSLNVKYNND KSRDYTRPDL PSGDSQPSLD QTMAAAFGLS 
       310        320        330        340        350
VPNVHGALAP LAIPSAAAAA AAAGRIAIPG LAGAGNSVLL VSNLNPERVT 
       360        370        380        390        400
PQSLFILFGV YGDVQRVKIL FNKKENALVQ MADGNQAQLA MSHLNGHKLH 
       410        420        430        440        450
GKPIRITLSK HQNVQLPREG QEDQGLTKDY GNSPLHRFKK PGSKNFQNIF 
       460        470        480        490        500
PPSATLHLSN IPPSVSEEDL KVLFSSNGGV VKGFKFFQKD RKMALIQMGS 
       510        520        530 
VEEAVQALID LHNHDLGENH HLRVSFSKST I
Length:531
Mass (Da):57,221
Last modified:August 1, 1992 - v1
<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:iBE12D5EA21537BED
GO
Isoform 2 (identifier: P26599-2) [UniParc]FASTAAdd to basket
Also known as: PTB2

The sequence of this isoform differs from the canonical sequence as follows:
     297-297: F → FASPYAGAGFPPTFAIPQAA

Show »
Length:550
Mass (Da):59,037
Checksum:i70CB96D0530CA091
GO
Isoform 3 (identifier: P26599-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     297-297: F → FGAPGIISASPYAGAGFPPTFAIPQAA

Show »
Length:557
Mass (Da):59,633
Checksum:iDAFE52BAC0E4BE5C
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 11 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A6NLN1A6NLN1_HUMAN
Polypyrimidine tract binding protei...
PTBP1 hCG_20560
527Annotation score:

Annotation score:1 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>
A0A0U1RRM4A0A0U1RRM4_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
588Annotation score:

Annotation score:1 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>
A0A087WUW5A0A087WUW5_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
81Annotation score:

Annotation score:1 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>
A0A0D9SF20A0A0D9SF20_HUMAN
Polypyrimidine tract binding protei...
PTBP1 hCG_20560
197Annotation score:

Annotation score:1 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>
K7ES59K7ES59_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
149Annotation score:

Annotation score:1 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>
K7EK45K7EK45_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
256Annotation score:

Annotation score:1 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>
K7EKJ7K7EKJ7_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
237Annotation score:

Annotation score:1 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>
A0A087WU68A0A087WU68_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
227Annotation score:

Annotation score:1 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>
K7ELW5K7ELW5_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
105Annotation score:

Annotation score:1 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>
K7EKX4K7EKX4_HUMAN
Polypyrimidine tract-binding protei...
PTBP1
56Annotation score:

Annotation score:1 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>
There is more potential isoformShow all

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_005802297F → FASPYAGAGFPPTFAIPQAA in isoform 2. Curated1
Alternative sequenceiVSP_043649297F → FGAPGIISASPYAGAGFPPT FAIPQAA in isoform 3. 2 Publications1

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
X62006 mRNA Translation: CAA43973.1
X65371 mRNA Translation: CAA46443.1
X65372 mRNA Translation: CAA46444.1
X60648 mRNA Translation: CAA43056.1
X66975 mRNA Translation: CAA47386.1
BT006819 mRNA Translation: AAP35465.1
AC006273 Genomic DNA Translation: AAC99798.1
CH471242 Genomic DNA Translation: EAW61154.1
BC002397 mRNA Translation: AAH02397.1
BC004383 mRNA Translation: AAH04383.1
BC013694 mRNA Translation: AAH13694.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS32859.1 [P26599-1]
CCDS42456.1 [P26599-3]
CCDS45892.1 [P26599-2]

Protein sequence database of the Protein Information Resource

More...PIRi		S23016

NCBI Reference Sequences

More...RefSeqi		NP_002810.1, NM_002819.4 [P26599-3]
NP_114367.1, NM_031990.3 [P26599-2]
NP_114368.1, NM_031991.3 [P26599-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000349038; ENSP00000014112; ENSG00000011304 [P26599-1]
ENST00000356948; ENSP00000349428; ENSG00000011304 [P26599-3]
ENST00000394601; ENSP00000408096; ENSG00000011304 [P26599-2]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		5725

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:5725

UCSC genome browser

More...UCSCi		uc002lpp.3 human [P26599-1]

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_references_section">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
X62006 mRNA Translation: CAA43973.1
X65371 mRNA Translation: CAA46443.1
X65372 mRNA Translation: CAA46444.1
X60648 mRNA Translation: CAA43056.1
X66975 mRNA Translation: CAA47386.1
BT006819 mRNA Translation: AAP35465.1
AC006273 Genomic DNA Translation: AAC99798.1
CH471242 Genomic DNA Translation: EAW61154.1
BC002397 mRNA Translation: AAH02397.1
BC004383 mRNA Translation: AAH04383.1
BC013694 mRNA Translation: AAH13694.1
CCDSiCCDS32859.1 [P26599-1]
CCDS42456.1 [P26599-3]
CCDS45892.1 [P26599-2]
PIRiS23016
RefSeqiNP_002810.1, NM_002819.4 [P26599-3]
NP_114367.1, NM_031990.3 [P26599-2]
NP_114368.1, NM_031991.3 [P26599-1]

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
1QM9NMR-A335-531[»]
1SJQNMR-A55-147[»]
1SJRNMR-A147-301[»]
2AD9NMR-A49-146[»]
2ADBNMR-A172-298[»]
2ADCNMR-A324-531[»]
2EVZNMR-A324-531[»]
2N3ONMR-A41-163[»]
3ZZYX-ray1.40A/B156-285[»]
3ZZZX-ray1.55A/B156-285[»]
SMRiP26599
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGridi111697, 245 interactors
CORUMiP26599
ELMiP26599
IntActiP26599, 66 interactors
MINTiP26599
STRINGi9606.ENSP00000349428

Chemistry databases

ChEMBLiCHEMBL1293230

PTM databases

iPTMnetiP26599
PhosphoSitePlusiP26599
SwissPalmiP26599

Polymorphism and mutation databases

BioMutaiPTBP1
DMDMi131528

2D gel databases

SWISS-2DPAGEiP26599

Proteomic databases

EPDiP26599
jPOSTiP26599
MassIVEiP26599
MaxQBiP26599
PaxDbiP26599
PeptideAtlasiP26599
PRIDEiP26599
ProteomicsDBi54354 [P26599-1]
54355 [P26599-2]
54356 [P26599-3]
TopDownProteomicsiP26599-1 [P26599-1]
P26599-2 [P26599-2]

Protocols and materials databases

The DNASU plasmid repository

More...DNASUi		5725

Genome annotation databases

EnsembliENST00000349038; ENSP00000014112; ENSG00000011304 [P26599-1]
ENST00000356948; ENSP00000349428; ENSG00000011304 [P26599-3]
ENST00000394601; ENSP00000408096; ENSG00000011304 [P26599-2]
GeneIDi5725
KEGGihsa:5725
UCSCiuc002lpp.3 human [P26599-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		5725
DisGeNETi5725
EuPathDBiHostDB:ENSG00000011304.17

GeneCards: human genes, protein and diseases

More...GeneCardsi		PTBP1
HGNCiHGNC:9583 PTBP1
HPAiCAB013507
MIMi600693 gene
neXtProtiNX_P26599
OpenTargetsiENSG00000011304
PharmGKBiPA33934

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG1190 Eukaryota
ENOG410XPMZ LUCA
GeneTreeiENSGT00950000182683
HOGENOMiHOG000231699
InParanoidiP26599
KOiK13218
OrthoDBi1545178at2759
PhylomeDBiP26599
TreeFamiTF319824

Enzyme and pathway databases

ReactomeiR-HSA-6803529 FGFR2 alternative splicing
R-HSA-72163 mRNA Splicing - Major Pathway
R-HSA-72203 Processing of Capped Intron-Containing Pre-mRNA

Miscellaneous databases

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

More...ChiTaRSi		PTBP1 human
EvolutionaryTraceiP26599

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		PTBP1

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

More...GenomeRNAii		5725
PharosiP26599 Tbio

Protein Ontology

More...PROi		PR:P26599
RNActiP26599 protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000011304 Expressed in 241 organ(s), highest expression level in embryo
ExpressionAtlasiP26599 baseline and differential
GenevisibleiP26599 HS

Family and domain databases

CDDicd12777 RRM1_PTBP1, 1 hit
cd12693 RRM2_PTBP1_like, 1 hit
cd12695 RRM3_PTBP1, 1 hit
DisProtiDP01601
Gene3Di3.30.70.330, 4 hits
InterProiView protein in InterPro
IPR006536 HnRNP-L/PTB
IPR012677 Nucleotide-bd_a/b_plait_sf
IPR034798 PTBP1/2/3_RRM2
IPR021790 PTBP1_RRM
IPR035000 PTBP1_RRM1
IPR035001 PTBP1_RRM3
IPR035979 RBD_domain_sf
IPR000504 RRM_dom
PfamiView protein in Pfam
PF00076 RRM_1, 1 hit
PF11835 RRM_8, 1 hit
SMARTiView protein in SMART
SM00360 RRM, 4 hits
SUPFAMiSSF54928 SSF54928, 4 hits
TIGRFAMsiTIGR01649 hnRNP-L_PTB, 1 hit
PROSITEiView protein in PROSITE
PS50102 RRM, 4 hits

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

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 nameiPTBP1_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: P26599
Secondary accession number(s): Q9BUQ0
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: August 1, 1992
Last modified: December 11, 2019
This is version 225 of the entry and version 1 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, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  3. Human chromosome 19
    Human chromosome 19: entries, gene names and cross-references to MIM
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again