Answer: serines

AnswerCrossword Clue
SERINESProtein derivatives, such as gelatin
SERINESCrystalline amino acids
serinesa crystalline nonessential amino acid C3H7NO3 that occurs as a residue in many proteins
serinescrystalline amino acid, HOCH2CH(NH2)COOH, found in many proteins and obtained by the hydrolysis of sericin, the protein constituting silk gum. Symbol: S
serinesSERINE, an amino acid