1. List three examples of small bioactive peptides.
2. List some examples of prosthetic groups attached to proteins.
Three examples of small bioactive peptides are :
1) Val-Pro-Pro which is derived from -casein and k-casein used to reduce the blood pressure.
2) Ile-Pro-Pro which is also derived from -casein and k-casein used to reduce the BP
3) Tyr-Pro derived from whey protein used as Acetylcholineesterase (ACE) inhibitor.
Examples of prosthetic groups attached to the protein:
1) Heme is a prosthetic group (protoporphyrin ring and central iron atom) in haemoglobin.
2) Biotin is a prosthetic group in acetyl Co A carboxylase.
3) Zn+2 is an inorganic prosthetic group in carbonic anhydrase/alcohol dehydrogenase/carboxypeptidase
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