>gi|77695917 platelet-derived growth factor alpha isoform 1 preproprotein [Homo sapiens] MRTLACLLLLGCGYLAHVLAEEAEIPREVIERLARSQIHSIRDLQRLLEI DSVGSEDSLDTSLRAHGVHATKHVPEKRPLPIRRKRSIEEAVPAVCKTRT VIYEIPRSQVDPTSANFLIWPPCVEVKRCTGCCNTSSVKCQPSRVHHRSV KVAKVEYVRKKPKLKEVQVRLEEHLECACATTSLNPDYREEDTGRPRESG KKRKRKRLKPT