Hemokinin 1 (HK1) is an 11 amino acid tachykinin produced by the proteolytic processing of a 128 amino acid precursor, preprotachykinin C. This peptide has been shown to bind the neurokinin-1 receptor (NK-1R) with the same affinity and potency as substance P. The NK-1R has been implicated in a number of conditions such as hyperalgesia and chronic pain. Hemokinin 1 and the natural ligand for the NK-1R, substance P, have been shown to have equivalent binding to the receptor. The NK-1R is involved with respiratory rhythm, mood disorders, anxiety and stress, and reinforcement. One of the most important roles for NK-1R is in the spinal cord in the transmission of pain signals from peripheral pain receptors to the brain. NK-1R pathway is implicated in the establishment and maintenance of a chronic pain state.
Hemokinin 1-SAP (HK1-SAP) is a chemical conjugate of the hemokinin-1 peptide and the ribosome-inactivating protein, saporin. It eliminates cells expressing the neurokinin-1 receptor (NK-1R). All other cells are left untouched, even when they are the predominant cell type.
HK1-SAP is available individually (Cat. #IT-76) or as a kit (Cat. #KIT-76) which includes HK1-SAP and Blank-SAP (Cat. #IT-21).
keywords: hemokinin 1, HK1, Substance P, SP, NK-1R, NK-1 receptor, NK1R, neurokin, saporin, pain, brain, neuroscience
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