PBP binds ATP, opioids and phosphatidylethanolamine, exhibiting a lower affinity for phosphatidylinositol and phosphatidylcholine. This serine protease inhibitor inhibits thrombin, neuropsin and chymotrypsin but not trypsin, tissue type plasminogen activator and elastase. PBP contains hippocampal cholinergic neurostimulating peptide (HCNP), which may be involved in the function of the presynaptic cholinergic neurons of the central nervous system. HCNP increases the production of choline acetyltransferase but not acetylcholinesterase.
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Protein Aliases: 23 kDa morphine-binding protein; epididymis luminal protein 210; epididymis secretory protein Li 34; epididymis secretory protein Li 96; HCNP; HCNPpp; Hippocampal cholinergic neurostimulating peptide; KIAA0299; MOCA; Neuropolypeptide h3; P23K; PEBP-1; Phosphatidylethanolamine-binding protein 1; PPBP; prostatic binding protein; Prostatic-binding protein; Raf kinase inhibitor protein; Raf kinase inhibitory protein; Raf-1 inhibitor protein; Raf-1 kinase inhibitor protein; RKIP
Gene Aliases: HCNP; HCNPpp; HEL-210; HEL-S-34; HEL-S-96; PBP; Pbp1; Pbpr; PEBP; PEBP-1; PEBP1; RKIP