JAK3

JAK3 Gene Summary

The protein encoded by this gene is a member of the Janus kinase (JAK) family of tyrosine kinases involved in cytokine receptor-mediated intracellular signal transduction. It is predominantly expressed in immune cells and transduces a signal in response to its activation via tyrosine phosphorylation by interleukin receptors. Mutations in this gene are associated with autosomal SCID (severe combined immunodeficiency disease). [provided by RefSeq, Jul 2008]

Details

Type
Retained Intron
Official Symbol
JAK3
Official Name
Janus kinase 3 [Source:HGNC Symbol;Acc:HGNC:6193]
Ensembl ID
ENSG00000105639
Bio databases IDs NCBI: 3718 Ensembl: ENSG00000105639
Aliases Janus kinase 3, tyrosine-protein kinase JAK3, leukocyte Janus kinase
Synonyms
fae,JAKL,Janus kinase 3,L-JAK,RATJAK3,wil
Species
Human, Homo sapiens

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 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Band 4.1 homologues
  • Protein kinase (unclassified specificity)
  • catalytic domain
  • Protein tyrosine and serine/threonine kinase
  • protein phosphatase binding
  • Jak Homology domain
  • kinase-like domain
  • FERM F1 ubiquitin-like domain
  • protein binding
  • Pleckstrin homology-like domain
  • protein-tyrosine kinase
  • Protein kinase domain
  • kinase
  • Serine/Threonine protein kinases, catalytic domain
  • FERM domain
  • kinase domain
  • receptor binding domain
  • Protein Kinases, catalytic domain
  • tyrosine kinase domain
  • active site
  • Src homology 2 (SH2) domain
  • FERM domain B-lobe
  • Tyrosine kinase, catalytic domain

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
  • JAK1
  • STAM
  • JAK2
  • STAT5A/B
  • SKP2
  • ASB2
  • CD40
  • STAT5A
  • CD69
  • GEMIN6
disease
  • obesity
  • abdominal cancer
  • cancer
  • systemic lupus erythematosus
  • Crohn disease
  • dermatomyositis
  • uveitis
  • ulcerative colitis
  • rheumatoid arthritis
  • juvenile rheumatoid arthritis
regulated by
  • lipopolysaccharide
  • dexamethasone
  • PKM
  • APOE
  • aspirin
  • heavy metal
  • streptozocin
  • IFNG
  • IL7
  • glucocorticoid
regulates
  • STAT3
  • GSK3B
  • CTNNB1
  • AKT
  • CD274
  • IL2
  • IFNG
  • TLR4
  • IL6
  • TGF beta
role in cell
  • expression in
  • phosphorylation in
  • production in
  • growth
  • activation in
  • number
  • cell death
  • proliferation
  • apoptosis
  • 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.
  • Cytoplasm
  • membrane fraction
  • Nucleus
  • Plasma Membrane
  • endosomes
  • cytosol
  • apical cell surfaces
  • basolateral cell surfaces
  • cytoplasmic face of plasma membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the JAK3 gene, providing context for its role in the cell.

BIOLOGICAL PROCESS

Functions and activities the gene product is involved in
  • interleukin-9-mediated signaling pathway
  • peptidyl-tyrosine phosphorylation
  • interleukin-2-mediated signaling pathway
  • negative regulation of interleukin-10 production
  • protein phosphorylation
  • negative regulation of T-helper 1 cell differentiation
  • JAK-STAT cascade
  • T cell homeostasis
  • negative regulation of dendritic cell cytokine production
  • negative regulation of thymocyte apoptotic process
  • cytokine-mediated signaling pathway
  • response to interleukin-2
  • intracellular signal transduction
  • interleukin-4-mediated signaling pathway
  • tyrosine phosphorylation of STAT protein
  • JAK-STAT cascade involved in growth hormone signaling pathway
  • B cell differentiation
  • regulation of JAK-STAT cascade
  • adaptive immune response
  • regulation of apoptotic process
  • enzyme linked receptor protein signaling pathway
  • regulation of T cell apoptotic process
  • response to interleukin-15
  • negative regulation of FasL biosynthetic process
  • response to interleukin-4
  • innate immune response
  • interleukin-15-mediated signaling pathway
  • cell differentiation
  • negative regulation of T cell activation
  • negative regulation of interleukin-12 production
  • response to interleukin-9

CELLULAR COMPONENT

Where in the cell the gene product is active
  • endosome
  • cytoskeleton
  • extrinsic to internal side of plasma membrane
  • cytosol
  • extrinsic to plasma membrane
  • plasma membrane

MOLECULAR FUNCTION

What the gene product does at the molecular level
  • ATP binding
  • protein tyrosine kinase activity
  • protein binding
  • protein phosphatase binding
  • non-membrane spanning protein tyrosine kinase activity
  • growth hormone receptor binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.