Which alpha-amino acid forms cross-links in p | vedclass

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(B) The $\alpha-$amino acid that forms cross-links in peptide chains is $Cysteine$. $Cysteine$ contains a thiol group $(-SH)$ in its side chain. Two $

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Cysteine

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(B) The $\alpha-$amino acid that forms cross-links in peptide chains is $Cysteine$. $Cysteine$ contains a thiol group $(-SH)$ in its side chain. Two $Cysteine$ residues can undergo oxidation to form a disulfide bond $(-S-S-)$,which acts as a cross-link between different parts of a protein chain or between different polypeptide chains,stabilizing the tertiary structure of proteins.

List-$I$ Natural Amino acid	List-$II$ One Letter Code
$A$. Arginine	$I$. $D$
$B$. Aspartic acid	$II$. $N$
$C$. Asparagine	$III$. $A$
$D$. Alanine	$IV$. $R$

Which $\alpha-$amino acid forms cross-links in peptide chains?

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Match List-$I$ with List-$II$

List-$I$ Natural Amino acid List-$II$ One Letter Code

$A$. Arginine $I$. $D$

$B$. Aspartic acid $II$. $N$

$C$. Asparagine $III$. $A$

$D$. Alanine $IV$. $R$

Choose the correct answer from the options given below :-

The main structural feature of proteins is

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