《动物生物化学》课程教学资源（PPT课件）第二章 蛋白质的结构和功能 structure and function of protein

C00 C00 HN-C-H H-C-NH3 CH3 CH3 L-Alanine D-Alanine (c)

109.59 109.5 (a) (0b) A 1209 B (c)

109.5° 109.5o7 (a)

(b)

A 120° B (c)