>tr|E5RFW9|E5RFW9_HUMAN Protein tyrosine kinase 2 OS=Homo sapiens GN=PTK2 MAAAYLDPNLNHTPNSSTKTHLGTGMERSPGAMERVLKVFHYFESNSEPTTWASIIRHGD ATDVRGIIQKIVDSHKVKHVACYGFRLSHLRSEEVHWLHVDMGVSSVREKYELAHPPEEW K