Which alpha-amino acid can cross-link peptide | vedclass

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(B) In many proteins,the linear polypeptide chains are cross-linked to provide structural stability. The most common type of cross-link is the disulfi

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Cysteine

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(B) In many proteins,the linear polypeptide chains are cross-linked to provide structural stability. The most common type of cross-link is the disulfide bond $(-S-S-)$. This bond is formed by the oxidation of the thiol $(-SH)$ groups present in a pair of cysteine residues. Therefore,cysteine is the amino acid responsible for cross-linking peptide chains.

Which $\alpha$-amino acid can cross-link peptide chains?

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