Substance P [7-11] Peptide
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Substance P corresponds to amino acid 58-68 of neurokinin A precursor. Neurokinin A belongs to the tachykinin family, peptides that are potent vasodilators and secretagogues, excite neurons, provoke behaviorial responses, and contract smooth muscles. Substance P acts as a neurotransmitter found in brain ans spinal cord and is associated with inflammatory responses in the joints by causing pain.