The following compound is an example of peptide: H 2 N - CH CH 2 COOH - CO - NH - CH COOCH 3 - CH 2 - C 6 H 5 How many amino acids will be obtained on hydrolysis of the compound?

Peptide linkage or dipeptide is formed by condensation of acidic group ( − COOH ) of one molecule of α -amino acid and base − NH 2 group of other molecule or α -amino acid with elimination of a water molecule. Two amino acids and alcohol are obtained on hydrolysis of the given compound. H 2 N - CH CH 2 COOH - CO - NH - CH COOCH 3 - CH 2 - C 6 H 5 → Hydrolysis H 2 N - CH CH 2 COOH - COOH Aspartic acid + CH 3 OH Methanol + NH 2 - CH COOH - CH 2 - C 6 H 5 phenylalanine

The following compound is an example of peptide: H 2 N - CH CH 2 COOH - CO - NH - CH COOCH 3 - CH 2 - C 6 H 5 Write Zwitter ion structure of the compound.

Amino acids are usually colourless, crystalline solids. These are water-soluble, high melting solids and behave like salts rather than simple amines or carboxylic acids. This behaviour is due to the presence of both acidic (carboxyl group) and basic (amino group) groups in the same molecule. In aqueous solution, the carboxyl group can lose a proton and amino group can accept a proton, giving rise to a dipolar ion known as zwitter ion. H 3 N + - CH CH 2 CO O - - CO - NH - CH COOCH 3 - CH 2 - C 6 H 5

What is meant by primary structure of a protein?

Primary structure of a protein is defined as the sequence of amino acids linked together to form a polypeptide chain. Each amino acid is linked to the next amino acid through peptide bonds created during the protein biosynthesis process.