Raf kinase inhibitor protein (RKIP) is a cytosolic protein that was initially characterized as a phosphatidylethanolamine-binding protein (PBP) expressed in brain tissue and secreted from testis fluid. In addition, RKIP was identified by yeast two-hybrid screening of human T cell libraries directed at identifying proteins that associate with the BXB kinase domain of the serine/threonine kinase, Raf-1. Subsequent in vitro and in vivo studies indicate that RKIP binds to both the active and inactive forms of Raf-1 and thereby regulates the signaling cascade of the MAP kinase pathway. The specific association of RKIP with kinase-active Raf-1 competitively inhibits the binding and activation of the Raf-1 substrate MEK. RKIP, in turn, affects downstream MAP kinase signaling by decreasing the activation of MEK effector proteins, including ERK1 and ERK2, and the subsequent induction of AP-1 mediated transcription.

Phosphatidylethanolamine-binding protein 1; PEBP-1; HCNPpp; Neuropolypeptide h3; Prostatic-binding protein; Raf kinase inhibitor protein; RKIP; Hippocampal cholinergic neurostimulating peptide; HCNP; PBP; PEBP

p30086

Human,Mouse,Rat

WB,IF,ICC

WB 1:500-1:1000
IF 1:100-1:400
ICC 1:50-1:200

~ 21 kDa

Rabbit

This antibody detects endogenous levels of PEBP1 protein.

Synthetic peptide, corresponding to amino acids 142-187 of Human PEBP1.

Polyclonal

Rabbit IgG

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

PBS with 0.02% sodium azide, 50% glycerol, pH7.2

1mg/ml

Store at 4℃ short term,and store at -20℃ long term. Avoid freeze-thaw cycles.