Automated description from the Alliance of Genome Resources (Release 7.4.0)
Enables protein tyrosine kinase activity. Involved in several processes, including negative regulation of T-helper 1 cell differentiation; negative regulation of macromolecule biosynthetic process; and regulation of apoptotic process. Acts upstream of or within several processes, including cell surface receptor signaling pathway; peptidyl-tyrosine phosphorylation; and positive regulation of transcription by RNA polymerase II. Predicted to be located in cytoskeleton; endomembrane system; and membrane. Predicted to be active in cytosol. Predicted to be extrinsic component of cytoplasmic side of plasma membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; hemolymphoid system gland; and liver and biliary system. Used to study severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-positive, Nk cell-positive. Human ortholog(s) of this gene implicated in hematologic cancer (multiple) and severe combined immunodeficiency. Orthologous to human JAK3 (Janus kinase 3).
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