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TLQP-21 (human) is a polypeptide that can be found by peptide screening. Peptide screening is a research tool that pools active peptides primarily by immunoassay. Peptide screening can be used for protein interaction, functional analysis, epitope screening, especially in the field of agent research and development[1].

TLQP-21 peptide is involved in the central and peripheral nervous system activities such as regulating reproductive and circadian behaviorsfeedingand body weight. It is also involved in regulating neuropathic pain and peripheral adiposity. TLQP-21 plays a role in stimulating the secretion of insulin and prevents apoptosis of pancreatic cells. It also activates the complement C3a receptor-1 (C3aR1) in the brain.

[1] Birnbaum S, et al. Peptide screening. Current Opinion in Biotechnology, 1992, 3(1): 49-54.