JCHAIN Gene Summary [Human]

Enables IgA binding activity and protein homodimerization activity. Contributes to several functions, including immunoglobulin receptor binding activity; peptidoglycan binding activity; and phosphatidylcholine binding activity. Involved in several processes, including defense response to other organism; glomerular filtration; and positive regulation of respiratory burst. Located in extracellular space. Part of monomeric IgA immunoglobulin complex; pentameric IgM immunoglobulin complex; and secretory dimeric IgA immunoglobulin complex. [provided by Alliance of Genome Resources, Apr 2022]

Details

Type
Protein Coding
Official Symbol
JCHAIN
Official Name
joining chain of multimeric IgA and IgM [Source:HGNC Symbol;Acc:HGNC:5713]
Ensembl ID
ENSG00000132465
Bio databases IDs NCBI: 3512 Ensembl: ENSG00000132465
Aliases joining chain of multimeric IgA and IgM, immunoglobulin J chain, IgJ chain, J chain
Synonyms 9530090F24Rik, IGCJ, IGJ, Ig joining chain, immunoglobulin joining chain, JCH, joining chain of multimeric IgA and IgM
Species
Human, Homo sapiens
OrthologiesMouse

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human JCHAIN often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Immunoglobulin J chain
  • phospholipid binding
  • binding protein
  • single-stranded DNA binding
  • protein binding activity, bridging
  • antigen binding
  • protein homodimerization
  • peptidoglycan binding
  • receptor binding
  • IgA binding

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • neoplasia
  • metastasis
  • organismal death
  • colorectal cancer
  • plasma cell neoplasm
  • B cell cancer
  • mature B-cell neoplasia
  • breast cancer
  • endometriosis
  • liver cancer
regulated by
  • ibrutinib
  • CD40
  • metformin
  • lipopolysaccharide
  • chrysotile asbestos
  • tretinoin
  • IL5
  • IL4
  • Immunoglobulin
  • CEBPA
regulates
role in cell
  • proliferation
  • function
  • migration
  • invasion by
  • epithelial-mesenchymal transition
  • number
  • quantity

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Extracellular Space
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human JCHAIN gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • positive regulation of respiratory burst
  • immune response
  • macromolecular complex assembly
  • innate immune response
  • glomerular filtration
  • humoral immune response
  • adaptive immune response
  • antibacterial humoral response

Cellular Component

Where in the cell the gene product is active
  • extracellular space
  • extracellular vesicular exosome
  • dimeric IgA immunoglobulin complex
  • secretory IgA immunoglobulin complex
  • blood microparticle
  • secretory dimeric IgA immunoglobulin complex
  • extracellular region
  • monomeric IgA immunoglobulin complex
  • pentameric IgM immunoglobulin complex
  • hexameric IgM immunoglobulin complex

Molecular Function

What the gene product does at the molecular level
  • peptidoglycan binding
  • protein homodimerization activity
  • antigen binding
  • IgA binding
  • phosphatidylcholine binding
  • protein binding, bridging
  • immunoglobulin receptor binding
  • single-stranded DNA binding

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