MAPKAP kinase-2 (or MK2) is an acronym for mitogen-activated protein kinase-activated protein kinase-2. This enzyme is phosphorylated and activated by Erks and p38 MAPK in vitro. While multiple residues of MK2 are phosphorylated in vivo in response to stress, only four of the residues Thr25, Thr222, Ser272 and Thr334 are phosphorylated by p38 in an in vitro kinase assay. MK2 is serine-threonine protein kinase that contains a proline rich sequence and two putative SH3-binding sites. MK2 phosphorylates downstream components on a consensus Pro-X-Ser/Thr-Pro motif. The best-characterized MK2 substrate is hsp27. Although unknown, the physiological function of MK2 may be to increase stress resistance. MK2 is an essential component in the inflammatory response that regulates biosynthesis of TNFα at a post-transcriptional level and MK2 is rapidly phosphorylated and activated in response to cytokines, stress and chemotactic factors.
This antibody was affinity purified from whole rabbit serum prepared by repeated immunizations with a synthetic peptide corresponding to an internal region of rabbit MAPKAP Kinase 2 conjugated to KLH using maleimide. A terminal cysteine residue was added to facilitate coupling.
来源宿主
Rabbit
反应性
H. sapiens (Human)
保存建议
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.
