13. A transmembrane protein has 1000 amino acids. The seventh amino acid is foun

Question

13. A transmembrane protein has 1000 amino acids. The seventh amino acid is found in between the tails of the cell membrane. Amino acid 36 is found on the outer surface of the protein and it interacts with the aqueous environment but would not form ionic bonds with other charged molecules. Amino acids 518 and 823 are covalently bonded to each other and contribute to the stabilization of the protein conformation. A weak hydrogen bond forms between amino acids 888 and 989 and they are found on the external surface of the protein. Identify each of the numbered amino acids by structural group and name.

Explanation / Answer

7 has hydrophobic side chain. These could be either alanine, valine, tryptophan, phenylalanine, eucine, or isoleucine,

36th amino acid will be hydrophillic and charged in nature like glutamate, aspartate, llysine or arginine.

518 and 823 are covalent;y bonded by disulfide bond. Both of them are cysteine.

number 888 and 989 will be have polar groups that can act as hydrogen bond donor or acceptor like glutamine, aspargine, histidine, tyrosine, threonine, or serine.

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