The structure of Gly-Ala is | vedclass

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(B) dipeptide is formed by the condensation reaction between the carboxyl group $(-COOH)$ of one amino acid and the amino group $(-NH_2)$ of another a

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$H_2N-CH_2-CO-NH-CH(CH_3)-COOH$

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(B) dipeptide is formed by the condensation reaction between the carboxyl group $(-COOH)$ of one amino acid and the amino group $(-NH_2)$ of another amino acid.In the dipeptide $Gly-Ala$,$Gly$ (Glycine) is the $N$-terminal amino acid and $Ala$ (Alanine) is the $C$-terminal amino acid.Glycine structure: $H_2N-CH_2-COOH$Alanine structure: $H_2N-CH(CH_3)-COOH$When $Gly$ and $Ala$ combine,the $-COOH$ group of $Gly$ reacts with the $-NH_2$ group of $Ala$ to form a peptide bond $(-CO-NH-)$.The resulting structure is $H_2N-CH_2-CO-NH-CH(CH_3)-COOH$.

The structure of $Gly-Ala$ is

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$A$ tetrapeptide has a $-COOH$ group on alanine. This produces glycine $(Gly)$,valine $(Val)$,phenylalanine $(Phe)$,and alanine $(Ala)$ on complete hydrolysis. For this tetrapeptide,the number of possible sequences (primary structures) with the $-NH_2$ group attached to a chiral center is:

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