>3US4_1|Chain A|Megakaryocyte-associated tyrosine-protein kinase|Homo sapiens (9606) GLSLMPWFHGKISGQEAVQQLQPPEDGLFLVRESARHPGDYVLCVSFGRDVIHYRVLHRDGHLTIDEAVFFCNLMDMVEHYSKDKGAICTKLVRPKRK