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Query author contributions in Reactome

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Details on Person UniProt:P01591 JCHAIN

Class:IdReferenceGeneProduct:57190
_chainChangeLogsignal peptide:1-22 added on Fri February 6 2015;chain:23-159 added on Fri February 6 2015
_displayNameUniProt:P01591 JCHAIN
_timestamp2024-11-03 20:19:30
chainsignal peptide:1-22
chain:23-159
checksumB7835C02CCC0CB05
commentFUNCTION Serves to link two monomer units of either IgM or IgA. In the case of IgM, the J chain-joined dimer is a nucleating unit for the IgM pentamer, and in the case of IgA it induces dimers and/or larger polymers. It also helps to bind these immunoglobulins to secretory component.SUBUNIT Part of the secretory IgA (sIgA) complex that consists of two, four or five IgA monomers, and two additional non-Ig polypeptides, namely the JCHAIN and the secretory component (the proteolytic product of PIGR) (PubMed:32029686). Part of the secretory IgM (sIgM) complex that consists of five IgM monomers, and two additional non-Ig polypeptides, namely the JCHAIN and the secretory component (the proteolytic product of PIGR) (PubMed:32029686, PubMed:32029689). JCHAIN-containing IgM interacts (via CH4 domain) with FCRM (via Ig-like domain) (PubMed:37095205).
descriptionrecommendedName: Immunoglobulin J chain alternativeName: fullName evidence="14"Joining chain of multimeric IgA and IgM
geneNameJCHAIN
IGCJ
IGJ
identifierP01591
isSequenceChangedFALSE
keyword3D-structure
Direct protein sequencing
Disulfide bond
Glycoprotein
Proteomics identification
Pyrrolidone carboxylic acid
Reference proteome
Secreted
Signal
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9862192] Weiser, Joel, 2024-02-26
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameJCHAIN
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8994272] ENSEMBL:ENSG00000132465 JCHAIN [Homo sapiens]
secondaryIdentifierIGJ_HUMAN
sequenceLength159
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:8858030] JCHAIN [extracellular region] [Homo sapiens]
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