Question

Write the classification of amino acids, giving examples.

Answer 1

1)Non polar:

i)Glycine (H)

ii)Alanine (CH3)

iii)Valine ( CH (CH3)2 )

iv)Methionine ( CH2CH2SCH3 )

v)Leucine ( CH2CH(CH3)2 )

vi)Isoleucine ( -CH(CH3)CH2CH3 )

vii)Proline (special structure)

viii)Phenylalanine

ix)Tryptophan

Polar:

a)acidic-->

Aspartic Acid ( CH2COOH)

Glutamic Acid ( CH2CH2COOH)

b)basic-->

Histidine

Lysine ( CH2(CH2)2NH2 )

Arginine

c)neutral-->

Serine ( CH2OH )

Threonine ( CH(OH)CH3 )

Asparagine ( CH2OHNH2 )

Glutamine ( CH2CH2CONH2 )

Cysteine ( CH2SH )

Tyrosine