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Entry version 154 (08 May 2019)
Sequence version 3 (10 May 2004)
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Protein

Gap junction beta-1 protein

Gene

Gjb1

Organism
Mus musculus (Mouse)
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

One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell.

<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

GO - Biological processi

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-MMU-190704 Oligomerization of connexins into connexons

<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:
Gap junction beta-1 protein
Alternative name(s):
Connexin-32
Short name:
Cx32
<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:Gjb1
Synonyms:Cxn-32
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 X

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:95719 Gjb1

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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 domaini1 – 22CytoplasmicSequence analysisAdd BLAST22
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei23 – 45HelicalSequence analysisAdd BLAST23
Topological domaini46 – 75ExtracellularSequence analysisAdd BLAST30
Transmembranei76 – 95HelicalSequence analysisAdd BLAST20
Topological domaini96 – 130CytoplasmicSequence analysisAdd BLAST35
Transmembranei131 – 153HelicalSequence analysisAdd BLAST23
Topological domaini154 – 191ExtracellularSequence analysisAdd BLAST38
Transmembranei192 – 214HelicalSequence analysisAdd BLAST23
Topological domaini215 – 283CytoplasmicSequence analysisAdd BLAST69

<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>Keywords - Cellular componenti

Cell junction, Cell membrane, Gap junction, Membrane

<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

<p>This subsection of the ‘Pathology and Biotech’ section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Mice lacking both Gja12 and Gjb1 display a severe demyelination phenotype associated with oligodendrocyte death. These mice develop action tremors, tonic seizures, sporadic convulsions and loss of consciousness preceding death in the sixth week after birth.1 Publication

<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_00000578511 – 283Gap junction beta-1 proteinAdd BLAST283

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 residuei233PhosphoserineBy similarity1
Modified residuei258PhosphoserineCombined sources1
Modified residuei266PhosphoserineCombined sources1
Modified residuei277PhosphoserineBy similarity1

Keywords - PTMi

Phosphoprotein

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P28230

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P28230

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

More...
PaxDbi
P28230

PRoteomics IDEntifications database

More...
PRIDEi
P28230

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P28230

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

More...
PhosphoSitePlusi
P28230

Miscellaneous databases

CutDB - Proteolytic event database

More...
PMAP-CutDBi
P28230

<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
ENSMUSG00000047797 Expressed in 132 organ(s), highest expression level in liver

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P28230 MM

<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

A connexon is composed of a hexamer of connexins. Interacts with CNST.1 Publication

GO - Molecular functioni

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
P28230, 1 interactor

STRING: functional protein association networks

More...
STRINGi
10090.ENSMUSP00000062723

<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

<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

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IFM8 Eukaryota
ENOG410Y7VN LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00950000182704

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000231127

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P28230

KEGG Orthology (KO)

More...
KOi
K07620

Identification of Orthologs from Complete Genome Data

More...
OMAi
YLVVRAC

Database of Orthologous Groups

More...
OrthoDBi
1131301at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P28230

TreeFam database of animal gene trees

More...
TreeFami
TF329606

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.1440.80, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000500 Connexin
IPR002267 Connexin32
IPR019570 Connexin_CCC
IPR017990 Connexin_CS
IPR013092 Connexin_N
IPR038359 Connexin_N_sf

The PANTHER Classification System

More...
PANTHERi
PTHR11984 PTHR11984, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00029 Connexin, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00206 CONNEXIN
PR01138 CONNEXINB1

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00037 CNX, 1 hit
SM01089 Connexin_CCC, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00407 CONNEXINS_1, 1 hit
PS00408 CONNEXINS_2, 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_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>Sequencei

<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.

P28230-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNWTGLYTLL SGVNRHSTAI GRVWLSVIFI FRIMVLVVAA ESVWGDEKSS
60 70 80 90 100
FICNTLQPGC NSVCYDHFFP ISHVRLWSLQ LILVSTPALL VAMHVAHQQH
110 120 130 140 150
IEKKMLRLEG HGDPLHLEEV KRHKVHISGT LWWTYVISVV FRLLFEAVFM
160 170 180 190 200
YVFYLLYPGY AMVRLVKCEA FPCPNTVDCF VSRPTEKTVF TVFMLAASGI
210 220 230 240 250
CIILNVAEVV YLIIRACARR AQRRSNPPSR KGSGFGHRLS PEYKQNEINK
260 270 280
LLSEQDGSLK DILRRSPGTG AGLAEKSDRC SAC
Length:283
Mass (Da):32,004
Last modified:May 10, 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:iC79FC46AA13BC5D7
GO

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 conflicti235F → S in AAA37296 (PubMed:2060697).Curated1
Sequence conflicti263 – 266LRRS → PXPH in AAA37296 (PubMed:2060697).Curated4

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
M63802 mRNA Translation: AAA37296.2
M81447 Genomic DNA Translation: AAA37496.1
AJ271753 Genomic DNA Translation: CAB72446.1
BC026833 mRNA Translation: AAH26833.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS30314.1

Protein sequence database of the Protein Information Resource

More...
PIRi
B49769

NCBI Reference Sequences

More...
RefSeqi
NP_001289425.1, NM_001302496.1
NP_001289426.1, NM_001302497.1
NP_001289427.1, NM_001302498.1
NP_032150.2, NM_008124.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000052130; ENSMUSP00000062723; ENSMUSG00000047797
ENSMUST00000119080; ENSMUSP00000113904; ENSMUSG00000047797
ENSMUST00000119190; ENSMUSP00000113516; ENSMUSG00000047797

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
14618

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:14618

UCSC genome browser

More...
UCSCi
uc009txk.2 mouse

<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
M63802 mRNA Translation: AAA37296.2
M81447 Genomic DNA Translation: AAA37496.1
AJ271753 Genomic DNA Translation: CAB72446.1
BC026833 mRNA Translation: AAH26833.1
CCDSiCCDS30314.1
PIRiB49769
RefSeqiNP_001289425.1, NM_001302496.1
NP_001289426.1, NM_001302497.1
NP_001289427.1, NM_001302498.1
NP_032150.2, NM_008124.3

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

IntActiP28230, 1 interactor
STRINGi10090.ENSMUSP00000062723

PTM databases

iPTMnetiP28230
PhosphoSitePlusiP28230

Proteomic databases

jPOSTiP28230
MaxQBiP28230
PaxDbiP28230
PRIDEiP28230

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000052130; ENSMUSP00000062723; ENSMUSG00000047797
ENSMUST00000119080; ENSMUSP00000113904; ENSMUSG00000047797
ENSMUST00000119190; ENSMUSP00000113516; ENSMUSG00000047797
GeneIDi14618
KEGGimmu:14618
UCSCiuc009txk.2 mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
2705
MGIiMGI:95719 Gjb1

Phylogenomic databases

eggNOGiENOG410IFM8 Eukaryota
ENOG410Y7VN LUCA
GeneTreeiENSGT00950000182704
HOGENOMiHOG000231127
InParanoidiP28230
KOiK07620
OMAiYLVVRAC
OrthoDBi1131301at2759
PhylomeDBiP28230
TreeFamiTF329606

Enzyme and pathway databases

ReactomeiR-MMU-190704 Oligomerization of connexins into connexons

Miscellaneous databases

PMAP-CutDBiP28230

Protein Ontology

More...
PROi
PR:P28230

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000047797 Expressed in 132 organ(s), highest expression level in liver
GenevisibleiP28230 MM

Family and domain databases

Gene3Di1.20.1440.80, 1 hit
InterProiView protein in InterPro
IPR000500 Connexin
IPR002267 Connexin32
IPR019570 Connexin_CCC
IPR017990 Connexin_CS
IPR013092 Connexin_N
IPR038359 Connexin_N_sf
PANTHERiPTHR11984 PTHR11984, 1 hit
PfamiView protein in Pfam
PF00029 Connexin, 1 hit
PRINTSiPR00206 CONNEXIN
PR01138 CONNEXINB1
SMARTiView protein in SMART
SM00037 CNX, 1 hit
SM01089 Connexin_CCC, 1 hit
PROSITEiView protein in PROSITE
PS00407 CONNEXINS_1, 1 hit
PS00408 CONNEXINS_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiCXB1_MOUSE
<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: P28230
<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: December 1, 1992
Last sequence update: May 10, 2004
Last modified: May 8, 2019
This is version 154 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

<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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
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