General description

SILu^™Lite MAPK1 is a recombinant human MAPK1 expressed in human 293 cells. It is a monomer of 380 amino acids (including polyhistidine and flag tags), with an apparent molecular weight of 44 kDa. SILu^™Lite MAPK1 is designed to be used as an internal standard for bioanalysis of MAPK1 in mass-spectrometry.

Biochem/physiol Actions

MAPK1 is a cytoplasmic protein that following activation is capable of translocating to the nucleus where it phosphorylates and regulates nuclear proteins (e.g., Elk-1, c-Myc, c-Jun, c-Fos, and C/EBP β). It is a protein serine/threonine kinase that is a member of the extracellular signal-regulated kinases (ERKs) which are activated in response to numerous growth factors and cytokines. Aberrations in the RAS-MAPK complex (of which MAPK1 is a downstream effector) are implicated in several human cancers, and this renders the pathway an attractive therapeutic target.

Sequence

MDYKDDDDKGHHHHHHHHGGQAAAAAAGAGPEMVRGQVFDVGPRYTNLSYIGEGAYGMVCSAYDNVNKVRVAIKKISPFEHQTYCQRTLREIKILLRFRHENIIGINDIIRAPTIEQMKDVYIVQDLMETDLYKLLKTQHLSNDHICYFLYQILRGLKYIHSANVLHRDLKPSNLLLNTTCDLKICDFGLARVADPDHDHTGFLTEYVATRWYRAPEIMLNSKGYTKSIDIWSVGCILAEMLSNRPIFPGKHYLDQLNHILGILGSPSQEDLNCIINLKARNYLLSLPHKNKVPWNRLFPNADSKALDLLDKMLTFNPHKRIEVEQALAHPYLEQYYDPSDEPIAEAPFKFDMELDDLPKEKLKELIFEETARFQPGYRS

Physical form

Supplied as a 0.1 mg/mL solution of 20mM sodium phosphate, pH 8.0, 1M NaCl.

Legal Information

This product is licensed under U.S. Patent No. 7,396,688 and foreign counterparts from E. I. du Pont de Nemours and Company. The purchase of this product conveys to the buyer the nontransferable right to use the purchased amount of the product for research and development only, including services for a third party for consideration. The buyer cannot sell or otherwise transfer this product, its components or materials made using this product or its components to a third party. Information about licenses for excluded uses is available from: E. I. du Pont de Nemours and Company; Attn: Associate Director, Commercial Development; DuPont Experimental Station E268; 200 Powdermill Rd.; Wilmington, DE 19803; 1-877-881-9787 (voice), 1-302-695-1437 (fax), licensing@dupont.com.

SILu is a trademark of Sigma-Aldrich Co. LLC