A protein 'X' with a molecular weight of 70,0 | vedclass

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Question

(B) Proteins are polymers of $\alpha$-amino acids. An $\alpha$-amino acid is one in which the amino group $(-NH_2)$ is attached to the carbon atom adj

Vedclass · Accepted Answer

$CH_3-CH(CH_3)-CH_2-CH(NH_2)-COOH$

Vedclass · Answer

(B) Proteins are polymers of $\alpha$-amino acids. An $\alpha$-amino acid is one in which the amino group $(-NH_2)$ is attached to the carbon atom adjacent to the carboxylic acid group $(-COOH)$,i.e.,the $\alpha$-carbon.In option $(B)$,the structure is $CH_3-CH(CH_3)-CH_2-CH(NH_2)-COOH$. Here,the $-NH_2$ group is attached to the carbon atom directly adjacent to the $-COOH$ group. This is the structure of the amino acid Leucine.In the other options,the $-NH_2$ group is attached to a carbon atom further away from the $-COOH$ group,meaning they are not $\alpha$-amino acids.

$A$ protein '$X$' with a molecular weight of $70,000 \ u$,on hydrolysis gives amino acids. One of these amino acids is:

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