Species : |
Human |
Source : |
Sf9 Cells |
Tag : |
GST |
Protein Length : |
866-1155 a.a. |
Description : |
Janus kinase 1 (JAK1), is a member of a new class of protein-tyrosine kinases (PTK) characterized by the presence of a second phosphotransferase-related domain immediately N-terminal to the PTK domain. The second phosphotransferase domain bears all the hallmarks of a protein kinase, although its structure differs significantly from that of the PTK and threonine/serine kinase family members. JAK1 is a large, widely expressed membrane-associated phosphoprotein. JAK1 is involved in the interferon-alpha/beta and -gamma signal transduction pathways. The reciprocal interdependence between JAK1 and TYK2 activities in the interferon-alpha pathway, and between JAK1 and JAK2 in the interferon-gamma pathway, may reflect a requirement for these kinases in the correct assembly of interferon receptor complexes. These kinases couple cytokine ligand binding to tyrosine phosphorylation of various known signaling proteins and of a unique family of transcription factors termed the signal transducers and activators of transcription, or STATs. |
Form : |
40 mM Tris-HCl pH 8.0, 110 mM NaCl, 2.2 mM KCl, 3 mM DTT, 16 mM glutathione and 20% glycerol. |
Bio-activity : |
1.0 pmole/min/μg. Enzyme reaction is conducted at 30°C for 1 hour in a buffer containing 50 mM HEPES (pH 7.5), 10 mM MgCl2, 1 mM EGTA, 200 μM ATP, 0.01% Brij-35 and 2 μM substrate (Tyr6, Invitrogen) using Z-Lyte assay conditions. |
Molecular Mass : |
59 kDa |
Purity : |
≥ 35% |
Applications : |
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling. |
Stability : |
>6 months at –80°C |