JAK3
Janus kinase 3 | JAK-3, JAK3_HUMAN, JAKL, L-JAK, LJAK

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]

Biological processes 66 terms
ATP binding (GO:0005524)B cell differentiation (GO:0030183)T cell homeostasis (GO:0043029)T cell homeostasis (GO:0043029)cell differentiation (GO:0030154)cell surface receptor signaling pathway via JAK-STAT (GO:0007259)cell surface receptor signaling pathway via JAK-STAT (GO:0007259)cell surface receptor signaling pathway via JAK-STAT (GO:0007259)cytokine-mediated signaling pathway (GO:0019221)cytokine-mediated signaling pathway (GO:0019221)cytoplasm (GO:0005737)cytoplasmic side of plasma membrane (GO:0009898)cytosol (GO:0005829)cytosol (GO:0005829)endomembrane system (GO:0012505)endosome (GO:0005768)endosome (GO:0005768)enzyme-linked receptor protein signaling pathway (GO:0007167)extrinsic component of cytoplasmic side of plasma membrane (GO:0031234)extrinsic component of cytoplasmic side of plasma membrane (GO:0031234)extrinsic component of cytoplasmic side of plasma membrane (GO:0031234)extrinsic component of plasma membrane (GO:0019897)growth hormone receptor binding (GO:0005131)growth hormone receptor signaling pathway via JAK-STAT (GO:0060397)growth hormone receptor signaling pathway via JAK-STAT (GO:0060397)interleukin-15-mediated signaling pathway (GO:0035723)interleukin-2-mediated signaling pathway (GO:0038110)interleukin-2-mediated signaling pathway (GO:0038110)interleukin-4-mediated signaling pathway (GO:0035771)interleukin-4-mediated signaling pathway (GO:0035771)interleukin-7-mediated signaling pathway (GO:0038111)interleukin-9-mediated signaling pathway (GO:0038113)intracellular signal transduction (GO:0035556)intracellular signal transduction (GO:0035556)intracellular signal transduction (GO:0035556)membrane (GO:0016020)negative regulation of T cell activation (GO:0050868)negative regulation of T-helper 1 cell differentiation (GO:0045626)negative regulation of T-helper 17 cell lineage commitment (GO:2000329)negative regulation of dendritic cell cytokine production (GO:0002731)negative regulation of glycoprotein biosynthetic process (GO:0010561)negative regulation of interleukin-10 production (GO:0032693)negative regulation of interleukin-12 production (GO:0032695)negative regulation of thymocyte apoptotic process (GO:0070244)non-membrane spanning protein tyrosine kinase activity (GO:0004715)non-membrane spanning protein tyrosine kinase activity (GO:0004715)plasma membrane (GO:0005886)protein binding (GO:0005515)protein kinase activity (GO:0004672)protein phosphatase binding (GO:0019903)protein tyrosine kinase activity (GO:0004713)protein tyrosine kinase activity (GO:0004713)protein tyrosine kinase activity (GO:0004713)protein tyrosine kinase activity (GO:0004713)protein tyrosine kinase activity (GO:0004713)regulation of T cell apoptotic process (GO:0070232)regulation of alpha-beta T cell activation (GO:0046634)regulation of apoptotic process (GO:0042981)regulation of leukocyte cell-cell adhesion (GO:1903037)regulation of receptor signaling pathway via JAK-STAT (GO:0046425)regulation of receptor signaling pathway via JAK-STAT (GO:0046425)response to interleukin-15 (GO:0070672)response to interleukin-2 (GO:0070669)response to interleukin-4 (GO:0070670)response to interleukin-9 (GO:0071104)tyrosine phosphorylation of STAT protein (GO:0007260)
Expression (TPM)
JAK3 — as a Regulated Gene

TFs regulating JAK3 0 TFs

Transcription factors with Perturb-seq knockdown data for JAK3. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = JAK3 upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to JAK3

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of JAK3, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr19:17,829,926–17,831,824 at TSS At TSS 466
chr19:17,841,205–17,843,221 at TSS At TSS 545
chr19:17,847,546–17,848,187 5.5 kb Proximal (<10kb) 437
chr19:17,855,644–17,855,880 7.7 kb Proximal (<10kb) 403

Genome Browser

Genomic view of the JAK3 locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr19:17,819,926 – 17,865,880
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq