ST3GAL3 GI:28373076 sialyltransferase 6 isoform e 1 mgllvfvrnl llalclflvl gflyysawkl hllqweedsn svvlsfdsag 50 51 qtlgseydrl gfllnldskl paelatkyan fsegackpgy asalmtaifp 100 101 rfskpapmfl ddsfrkwari refvppfgik gqvldaqypa rervsaeage 150 151 ssrhh