THY1 GI:19923362 Thy-1 cell surface antigen preproprotein 1 mnlaisiall ltvlqvsrgq kvtsltaclv dqslrldcrh entssspiqy 50 51 efsltretkk hvlfgtvgvp ehtyrsrtnf tskynmkvly lsaftskdeg 100 101 tytcalhhsg hsppissqnv tvlrdklvkc egisllaqnt swllllllsl 150 151 sllqatdfms l