氨基酸结构式要求是简洁!20种

　　Alanine ala a CH3-CH(NH2)-COOH
　　Arginine arg r HN=C(NH2)-NH-(CH2)3-CH(NH2)-COOH
　　Asparagine asn n H2N-CO-CH2-CH(NH2)-COOH
　　Aspartic acid asp d HOOC-CH2-CH(NH2)-COOH
　　Cysteine cys c HS-CH2-CH(NH2)-COOH
　　Glutamine gln q H2N-CO-(CH2)2-CH(NH2)-COOH
　　Glutamic acid glu e HOOC-(CH2)2-CH(NH2)-COOH
　　Glycine gly g NH2-CH2-COOH
　　Histidine his h NH-CH=N-CH=C-CH2-CH(NH2)-COOH
　　|__________|
　　Isoleucine ile i CH3-CH2-CH(CH3)-CH(NH2)-COOH
　　Leucine leu l (CH3)2-CH-CH2-CH(NH2)-COOH
　　Lysine lys k H2N-(CH2)4-CH(NH2)-COOH
　　Methionine met m CH3-S-(CH2)2-CH(NH2)-COOH
　　Phenylalanine phe f Ph-CH2-CH(NH2)-COOH
　　Proline pro p NH-(CH2)3-CH-COOH
　　|_________|
　　Serine ser s HO-CH2-CH(NH2)-COOH
　　Threonine thr t CH3-CH(OH)-CH(NH2)-COOH
　　Tryptophan trp w Ph-NH-CH=C-CH2-CH(NH2)-COOH
　　|_______|
　　Tyrosine tyr y HO-p-Ph-CH2-CH(NH2)-COOH
　　Valine val v (CH3)2-CH-CH(NH2)-COOH
　　累死我了,我很强吧?