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The cleavage between Asn-Pro is carried out by (a) Cyanogen Bromide (b) Hydroxylamine (c) Trypsin (d) Factor Xa

Question

The cleavage between Asn-Pro is carried out by

(a) Cyanogen Bromide
(b) Hydroxylamine
(c) Trypsin
(d) Factor Xa

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Solution

The cleavage between Asn-Pro is carried out by (b) Hydroxylamine.

Here's a step-by-step explanation:

  1. The question is asking which agent is responsible for cleaving (breaking) the bond between the amino acids Asparagine (Asn) and Proline (Pro).

  2. Cyanogen Bromide (a) is a reagent that specifically cleaves at the carboxyl side of Methionine residues.

  3. Trypsin (c) is an enzyme that cleaves proteins at the carboxyl side of the amino acids lysine and arginine, except when either is followed by proline.

  4. Factor Xa (d) is an enzyme that cleaves at the carboxyl side of the arginine residue in the sequence Ile-Glu-Gly-Arg, it doesn't cleave between Asn-Pro.

  5. Hydroxylamine (b) is a reagent that specifically cleaves Asn-Gly bonds, but it can also cleave Asn-Pro bonds under certain conditions. Therefore, the correct answer is (b) Hydroxylamine.

This problem has been solved

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