> Information Center > Technical FAQs > Peptides Synthesis Technology Column > What are the functions of peptides?
i. Precursor of protein: Peptides are precursor of protein.
ii. As alkaloids: Peptides are also the constituents of alkaloids (Alkaloids are group of secondary metabolites such as Nicotin, Caffeine, Terpentine, Ergotamine etc).
iii. As Antimicrobial agent: Peptides possess antibacterial properties. Secondary metabolites of bacteria and fungi have antimicrobial activity. Eg. Penicillin G ( valine-cystein-phenylacetic acid)
iv. As Hormones: Peptides acts as hormones eg. Insulin, Somatostatin, vasopressin etc
v. Peptides also acts as growth factors. Eg. Ascorbic acid (vit. C)
vi. As anti-oxidant: Peptide functions as anti-oxidant. They scavenge free radicals. Eg. Carnosine
vii. Clinical diagnosis: hyper secretion of peptide in urine is indicator for mental state of disturbance like depression, schizophrenia etc.
viii. As structural component: peptides form long chains creating structural protein which provides support to body. Eg. Keratin, collagen
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