Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
A BLAST analysis was used to suggest cross-reactivity with human, orangutan, rat, and pig based on 100% sequence homology. Cross-reactivity with JAK II from other sources has not been determined.
Janus Activating Kinase 2 (JAK2) is a non-rececptor tyrosine kinase involved in various processes such as cell growth, development, differentiation, and histone modifications. In response to a varitety of cytokine or related factors (e.g., interferon, interleukins), JAKs are activated via phosphorylation at 2 adjacent tyrosine residues. The activation of JAKs can lead to the phosphorylation of STAT (signal transducers and activatiors of transcription) proteins, which dimerize and translocate to the nucleus. Once translocated to the nucleus, the STAT proteins can modify transcription of numerous genes, including interferon-stimulated genes. JAK2 is required for the IFN gamma-receptor complex initiation and JAK1 functions as an amplifier. Some studies have suggested that the role of JAK2 might be performed by Tyk2 and JAK3, if they were positioned correctly within the IFN gamma-receptor complex. Mutations affecting this gene can cause Budd-Chiari syndrome, Polycythemia vera, Thrombocythemia 3, myelofibrosis, or Acute myelogenous leukemia.
Protein Aliases: EC 220.127.116.11; JAK 2; JAK-2; Janus kinase 2; Janus kinase 2 (a protein tyrosine kinase); JTK 10; kinase Jak2; Tyrosine-protein kinase JAK2
Gene Aliases: JAK2; JTK10; THCYT3
UniProt ID: (Human) O60674
Entrez Gene ID: (Human) 3717