>gi|21450842 megakaryocyte-associated tyrosine kinase isoform b [Homo sapiens] MQGHFPAERREGRPRRGTRGQQQLLVSPRFLRAWHPPPVSARMPTRRWAP GTQCITKCEHTRPKPGELAFRKGDVVTILEACENKSWYRVKHHTSGQEGL LAAGALREREALSADPKLSLMPWFHGKISGQEAVQQLQPPEDGLFLVRES ARHPGDYVLCVSFGRDVIHYRVLHRDGHLTIDEAVFFCNLMDMVEHYSKD KGAICTKLVRPKRKHGTKSAEEELARAGWLLNLQHLTLGAQIGEGEFGAV LQGEYLGQKVAVKNIKCDVTAQAFLDETAVMTKMQHENLVRLLGVILHQG LYIVMEHVSKGNLVNFLRTRGRALVNTAQLLQFSLHVAEGMEYLESKKLV HRDLAARNILVSEDLVAKVSDFGLAKAERKGLDSSRLPVKWTAPEALKHG KFTSKSDVWSFGVLLWEVFSYGRAPYPKMSLKEVSEAVEKGYRMEPPEGC PGPVHVLMSSCWEAEPARRPPFRKLAEKLARELRSAGAPASVSGQDADGS TSPRSQEP