L-Phenylalanine (Abbreviated Phe) is an essential amino acid and is the only form of phenylalanine found in proteins.
L-Phenylalanine (Abbreviated Phe) ແມ່ນກົດ amino ທີ່ ຈໍາ ເປັນແລະເປັນຮູບແບບດຽວຂອງ phenylalanine ທີ່ພົບໃນໂປຣຕີນ.