Tí kò bá sí ní protein, ó máa ń ṣe àwọn iṣẹ́ pàtàkì bíi nueroraSọ́ọ̀lù àti ìṣẹ̀dá ní ara.ní Biochemistry, àwọn amino acid tí ó ní amine àti àkójọpọ̀  carboxylic acid so mọ́ carbon átọ́tọ́ àkọ́kọ́ (alpha-) * ń ní iṣẹ́ pàtàkì kan pato.. 