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UniProtKB - Q8NDV3 (SMC1B_HUMAN)

Entry version 168 (23 Feb 2022)
Sequence version 2 (04 Jan 2005)
Previous versions | rss
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Protein

Structural maintenance of chromosomes protein 1B

Gene

SMC1B

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 transcript 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

Meiosis-specific component of cohesin complex. Required for the maintenance of meiotic cohesion, but not, or only to a minor extent, for its establishment. Contributes to axial element (AE) formation and the organization of chromatin loops along the AE. Plays a key role in synapsis, recombination and chromosome movements. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The meiosis-specific cohesin complex probably replaces mitosis specific cohesin complex when it dissociates from chromatin during prophase I (By similarity).

By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi32 – 39ATPSequence analysis8

<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

Biological processCell cycle, Meiosis
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		Q8NDV3

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-1221632, Meiotic synapsis

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

More...SignaLinki		Q8NDV3

<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:
Structural maintenance of chromosomes protein 1B
Short name:
SMC protein 1B
Short name:
SMC-1-beta
Short name:
SMC-1B
<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:SMC1B
Synonyms:SMC1L2
<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 22

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:11112, SMC1B

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		608685, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_Q8NDV3

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000077935

<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

Keywords - Cellular componenti

Centromere, Chromosome, 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		27127

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA35962

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		Q8NDV3, Tbio

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		SMC1B

Domain mapping of disease mutations (DMDM)

More...DMDMi		57015410

<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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001189931 – 1235Structural maintenance of chromosomes protein 1BAdd BLAST1235

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 residuei648N6-acetyllysineBy similarity1
Modified residuei713N6-acetyllysineBy similarity1
Modified residuei1033N6-acetyllysineBy similarity1

Keywords - PTMi

Acetylation

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		Q8NDV3

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		Q8NDV3

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		Q8NDV3

MaxQB - The MaxQuant DataBase

More...MaxQBi		Q8NDV3

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

More...PaxDbi		Q8NDV3

PeptideAtlas

More...PeptideAtlasi		Q8NDV3

PRoteomics IDEntifications database

More...PRIDEi		Q8NDV3

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		73058 [Q8NDV3-1]
73059 [Q8NDV3-2]
73060 [Q8NDV3-3]

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q8NDV3

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

More...PhosphoSitePlusi		Q8NDV3

<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		ENSG00000077935, Expressed in testis and 21 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q8NDV3, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000077935, Tissue enriched (testis)

<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

Forms a heterodimer with SMC3.

Component of a meiosis-specific cohesin complex, probably composed of the SMC1B and SMC3 heterodimer attached via their SMC hinge domain, RAD21 (or its meiosis-specific related protein REC8), which link them, and STAG3, which interacts with RAD21 or REC8 (By similarity).

By similarity

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		118018, 9 interactors

Protein interaction database and analysis system

More...IntActi		Q8NDV3, 4 interactors

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000350036

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		Q8NDV3, 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

3D structure databases

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

More...SMRi		Q8NDV3

Database of comparative protein structure models

More...ModBasei		Search...

<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>Domaini514 – 629SMC hingeAdd BLAST116

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 coili156 – 490Sequence analysisAdd BLAST335
Coiled coili666 – 934Sequence analysisAdd BLAST269
Coiled coili970 – 994Sequence analysisAdd BLAST25
Coiled coili1022 – 1049Sequence analysisAdd BLAST28

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The flexible SMC hinge domain, which separates the large intramolecular coiled coil regions, allows the heterotypic interaction with the corresponding domain of SMC3, forming a V-shaped heterodimer. The two heads of the heterodimer are then connected by different ends of the cleavable RAD21 or REC8 protein, forming a ring structure (By similarity).By similarity

<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 SMC family. SMC1 subfamily.Curated

Keywords - Domaini

Coiled coil

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0018, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_001042_0_2_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q8NDV3

Database of Orthologous Groups

More...OrthoDBi		326079at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q8NDV3

TreeFam database of animal gene trees

More...TreeFami		TF101156

Family and domain databases

Conserved Domains Database

More...CDDi		cd03275, ABC_SMC1_euk, 2 hits

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.40.50.300, 2 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR027417, P-loop_NTPase
IPR003395, RecF/RecN/SMC_N
IPR024704, SMC
IPR028468, Smc1_ABC
IPR010935, SMC_hinge
IPR036277, SMC_hinge_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF06470, SMC_hinge, 1 hit
PF02463, SMC_N, 1 hit

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF005719, SMC, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00968, SMC_hinge, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52540, SSF52540, 2 hits
SSF75553, SSF75553, 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.

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: Q8NDV3-1) [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
MAHLELLLVE NFKSWRGRQV IGPFRRFTCI IGPNGSGKSN VMDALSFVMG 
        60         70         80         90        100
EKIANLRVKN IQELIHGAHI GKPISSSASV KIIYVEESGE EKTFARIIRG 
       110        120        130        140        150
GCSEFRFNDN LVSRSVYIAE LEKIGIIVKA QNCLVFQGTV ESISVKKPKE 
       160        170        180        190        200
RTQFFEEIST SGELIGEYEE KKRKLQKAEE DAQFNFNKKK NIAAERRQAK 
       210        220        230        240        250
LEKEEAERYQ SLLEELKMNK IQLQLFQLYH NEKKIHLLNT KLEHVNRDLS 
       260        270        280        290        300
VKRESLSHHE NIVKARKKEH GMLTRQLQQT EKELKSVETL LNQKRPQYIK 
       310        320        330        340        350
AKENTSHHLK KLDVAKKSIK DSEKQCSKQE DDIKALETEL ADLDAAWRSF 
       360        370        380        390        400
EKQIEEEILH KKRDIELEAS QLDRYKELKE QVRKKVATMT QQLEKLQWEQ 
       410        420        430        440        450
KTDEERLAFE KRRHGEVQGN LKQIKEQIED HKKRIEKLEE YTKTCMDCLK 
       460        470        480        490        500
EKKQQEETLV DEIEKTKSRM SEFNEELNLI RSELQNAGID THEGKRQQKR 
       510        520        530        540        550
AEVLEHLKRL YPDSVFGRLF DLCHPIHKKY QLAVTKVFGR FITAIVVASE 
       560        570        580        590        600
KVAKDCIRFL KEERAEPETF LALDYLDIKP INERLRELKG CKMVIDVIKT 
       610        620        630        640        650
QFPQLKKVIQ FVCGNGLVCE TMEEARHIAL SGPERQKTVA LDGTLFLKSG 
       660        670        680        690        700
VISGGSSDLK YKARCWDEKE LKNLRDRRSQ KIQELKGLMK TLRKETDLKQ 
       710        720        730        740        750
IQTLIQGTQT RLKYSQNELE MIKKKHLVAF YQEQSQLQSE LLNIESQCIM 
       760        770        780        790        800
LSEGIKERQR RIKEFQEKID KVEDDIFQHF CEEIGVENIR EFENKHVKRQ 
       810        820        830        840        850
QEIDQKRYFY KKMLTRLNVQ LEYSRSHLKK KLNKINTLKE TIQKGSEDID 
       860        870        880        890        900
HLKKAEENCL QTVNELMAKQ QQLKDIRVTQ NSSAEKVQTQ IEEERKKFLA 
       910        920        930        940        950
VDREVGKLQK EVVSIQTSLE QKRLEKHNLL LDCKVQDIEI ILLSGSLDDI 
       960        970        980        990       1000
IEVEMGTEAE STQATIDIYE KEEAFEIDYS SLKEDLKALQ SDQEIEAHLR 
      1010       1020       1030       1040       1050
LLLQQVASQE DILLKTAAPN LRALENLKTV RDKFQESTDA FEASRKEARL 
      1060       1070       1080       1090       1100
CRQEFEQVKK RRYDLFTQCF EHVSISIDQI YKKLCRNNSA QAFLSPENPE 
      1110       1120       1130       1140       1150
EPYLEGISYN CVAPGKRFMP MDNLSGGEKC VAALALLFAV HSFRPAPFFV 
      1160       1170       1180       1190       1200
LDEVDAALDN TNIGKVSSYI KEQTQDQFQM IVISLKEEFY SRADALIGIY 
      1210       1220       1230 
PEYDDCMFSR VLTLDLSQYP DTEGQESSKR HGESR
Length:1,235
Mass (Da):143,908
Last modified:January 4, 2005 - v2
<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:iA06223197817017F
GO
Isoform 2 (identifier: Q8NDV3-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     808-814: YFYKKML → LEFEKQK
     1092-1165: Missing.

Show »
Length:1,161
Mass (Da):135,838
Checksum:iAE2578854CC1A3BE
GO
Isoform 3 (identifier: Q8NDV3-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     808-814: YFYKKML → LEFEKQK

Show »
Length:1,235
Mass (Da):143,837
Checksum:iBF22F243CA070B15
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 BAC86266 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 conflicti99R → L in CAD43404 (PubMed:14660695).Curated1
Sequence conflicti731Y → D in BAC86266 (PubMed:14702039).Curated1
Sequence conflicti752S → G in BAC86266 (PubMed:14702039).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_045913473F → V1 PublicationCorresponds to variant dbSNP:rs136603Ensembl.1
Natural variantiVAR_057324758R → Q. Corresponds to variant dbSNP:rs9614653Ensembl.1
Natural variantiVAR_0573251008S → A. Corresponds to variant dbSNP:rs16993928Ensembl.1
Natural variantiVAR_0459141050L → M2 PublicationsCorresponds to variant dbSNP:rs5764698Ensembl.1

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_035027808 – 814YFYKKML → LEFEKQK in isoform 2 and isoform 3. 2 Publications7
Alternative sequenceiVSP_0350281092 – 1165Missing in isoform 2. 1 PublicationAdd BLAST74

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
AJ504806 mRNA Translation: CAD43404.2
AL008718 Genomic DNA No translation available.
AL021391 Genomic DNA No translation available.
BC126208 mRNA Translation: AAI26209.1
AK125736 mRNA Translation: BAC86266.1 Different initiation.

The Consensus CDS (CCDS) project

More...CCDSi		CCDS43027.1 [Q8NDV3-3]
CCDS74876.1 [Q8NDV3-2]

NCBI Reference Sequences

More...RefSeqi		NP_001278430.1, NM_001291501.1
NP_683515.4, NM_148674.4

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000357450; ENSP00000350036; ENSG00000077935
ENST00000404354; ENSP00000385902; ENSG00000077935

Database of genes from NCBI RefSeq genomes

More...GeneIDi		27127

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:27127

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

More...MANE-Selecti		ENST00000357450.9; ENSP00000350036.4; NM_148674.5; NP_683515.4

UCSC genome browser

More...UCSCi		uc003bgc.4, human [Q8NDV3-1]

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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ504806 mRNA Translation: CAD43404.2
AL008718 Genomic DNA No translation available.
AL021391 Genomic DNA No translation available.
BC126208 mRNA Translation: AAI26209.1
AK125736 mRNA Translation: BAC86266.1 Different initiation.
CCDSiCCDS43027.1 [Q8NDV3-3]
CCDS74876.1 [Q8NDV3-2]
RefSeqiNP_001278430.1, NM_001291501.1
NP_683515.4, NM_148674.4

3D structure databases

SMRiQ8NDV3
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi118018, 9 interactors
IntActiQ8NDV3, 4 interactors
STRINGi9606.ENSP00000350036

PTM databases

iPTMnetiQ8NDV3
PhosphoSitePlusiQ8NDV3

Genetic variation databases

BioMutaiSMC1B
DMDMi57015410

Proteomic databases

EPDiQ8NDV3
jPOSTiQ8NDV3
MassIVEiQ8NDV3
MaxQBiQ8NDV3
PaxDbiQ8NDV3
PeptideAtlasiQ8NDV3
PRIDEiQ8NDV3
ProteomicsDBi73058 [Q8NDV3-1]
73059 [Q8NDV3-2]
73060 [Q8NDV3-3]

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		233, 126 antibodies from 23 providers

The DNASU plasmid repository

More...DNASUi		27127

Genome annotation databases

EnsembliENST00000357450; ENSP00000350036; ENSG00000077935
ENST00000404354; ENSP00000385902; ENSG00000077935
GeneIDi27127
KEGGihsa:27127
MANE-SelectiENST00000357450.9; ENSP00000350036.4; NM_148674.5; NP_683515.4
UCSCiuc003bgc.4, human [Q8NDV3-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		27127
DisGeNETi27127

GeneCards: human genes, protein and diseases

More...GeneCardsi		SMC1B
HGNCiHGNC:11112, SMC1B
HPAiENSG00000077935, Tissue enriched (testis)
MIMi608685, gene
neXtProtiNX_Q8NDV3
PharmGKBiPA35962
VEuPathDBiHostDB:ENSG00000077935

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0018, Eukaryota
HOGENOMiCLU_001042_0_2_1
InParanoidiQ8NDV3
OrthoDBi326079at2759
PhylomeDBiQ8NDV3
TreeFamiTF101156

Enzyme and pathway databases

PathwayCommonsiQ8NDV3
ReactomeiR-HSA-1221632, Meiotic synapsis
SignaLinkiQ8NDV3

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		27127, 7 hits in 1040 CRISPR screens

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

More...ChiTaRSi		SMC1B, human

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		SMC1B

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

More...GenomeRNAii		27127
PharosiQ8NDV3, Tbio

Protein Ontology

More...PROi		PR:Q8NDV3
RNActiQ8NDV3, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000077935, Expressed in testis and 21 other tissues
GenevisibleiQ8NDV3, HS

Family and domain databases

CDDicd03275, ABC_SMC1_euk, 2 hits
Gene3Di3.40.50.300, 2 hits
InterProiView protein in InterPro
IPR027417, P-loop_NTPase
IPR003395, RecF/RecN/SMC_N
IPR024704, SMC
IPR028468, Smc1_ABC
IPR010935, SMC_hinge
IPR036277, SMC_hinge_sf
PfamiView protein in Pfam
PF06470, SMC_hinge, 1 hit
PF02463, SMC_N, 1 hit
PIRSFiPIRSF005719, SMC, 1 hit
SMARTiView protein in SMART
SM00968, SMC_hinge, 1 hit
SUPFAMiSSF52540, SSF52540, 2 hits
SSF75553, SSF75553, 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 nameiSMC1B_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: Q8NDV3
Secondary accession number(s): A0AV46
, B0QY23, B0QY24, Q5TIC3, Q6ZUF9, Q9Y3G5
<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: March 25, 2003
Last sequence update: January 4, 2005
Last modified: February 23, 2022
This is version 168 of the entry and version 2 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

Reference proteome

Documents

  1. Human chromosome 22
    Human chromosome 22: 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. SIMILARITY comments
    Index of protein domains and families
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