MP1 (MEK partner 1) functions as a scaffolding protein in the mitogen activated protein (MAP) kinase signaling pathway. Growth factor induced MAP kinase activation is selectively mediated by the extracellular signal-regulated kinase (ERK) cascade. This pathway is dependent on the phosphorylation of MEK-1 and its subsequent activation of ERK 1. MP1 binds to the proline-rich domain of MEK-1 and thereby potentiates the phosphorylation of MEK-1 by the activating MEK kinase B-Raf. MP1 is also able to enhance the kinase activity of MEK-1 and facilitate the phosphorylation of ERK 1. In vivo studies indicate that MP1 preferentially associates with MEK-1 and ERK 1, but not with MEK-2 or ERK 2, suggesting that MP1 and other scaffolding proteins contribute to the specificity of the kinase substrates within the MAPK pathways.
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
WBIPIFELISA
recommended for detection of MP1 of mouse, rat and human origin by WB, IP, IF and ELISA also reactive with additional species, including equine, canine, bovine, porcine and avian
Species Reactivity
HumanMouseRat
Concentration
1mg/ml
Purification
Affinity purified
Target Information
Alternative Names
epitope corresponding to amino acids 1-124 representing full length MP1 of mouse origin
Tissue Specificity
epitope corresponding to amino acids 1-124 representing full length MP1 of mouse origin
Western blot analysis of MP1 expression in non-transfected: (A) and mouse MP1 transfected: (B) 293T whole cell lysates.
Application
Western blot analysis of MP1 expression in 3T3-L1 whole cell lysate.
Application Notes
recommended for detection of MP1 of mouse, rat and human origin by WB, IP, IF and ELISA also reactive with additional species, including equine, canine, bovine, porcine and avian
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.