SSX2 GI:28559006 synovial sarcoma, X breakpoint 2 isoform b 1 mngddafarr ptvgaqipek iqkafddiak yfskeewekm kasekifyvy 50 51 mkrkyeamtk lgfkatlppf mcnkraedfq gndldndpnr gnqverpqmt 100 101 fgrlqgispk impkkpaeeg ndseevpeas gpqndgkelc ppgkpttsek 150 151 ihersgpkrg ehawthrlre rkqlviyeei sdpeedde