Crossword Clue:

HISTIDINE an amino acid found in proteins also HISTIDIN

AnswerCrossword Clue
SERINEAmino acid in proteins
SERINEAmino acid in many proteins
AMINOType of acid found in proteins
PROLINEAmino acid found in collagen
GLYCINEAmino acid found in protein
GLYCINEAmino acid found in sugar cane