The number of disulphide linkages present in | vedclass

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Question

(C) Insulin is a peptide hormone composed of two polypeptide chains,referred to as chain $A$ and chain $B$.Chain $A$ consists of $21$ amino acid resid

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(C) Insulin is a peptide hormone composed of two polypeptide chains,referred to as chain $A$ and chain $B$.Chain $A$ consists of $21$ amino acid residues,and chain $B$ consists of $30$ amino acid residues.These two chains are linked together by two inter-chain disulphide bridges (between $A7-B7$ and $A20-B19$).Additionally,there is one intra-chain disulphide bridge within chain $A$ (between $A6-A11$).Therefore,the total number of disulphide linkages present in an insulin molecule is $3$.

The number of disulphide linkages present in insulin is

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