>1bjoa.pdb --QIFNFSSGPAMLPAEV-LKQAQQELRDWNGLGTSVMEVSHRGKEFIQVAEEAEKDFRDLLNVPSNYKVLFCHGGGRGQ FAAVPLNILGDKTTADYVDAGYWAASAIKEAKKYCTPNVFDAKVTVDGL-------RAVKPMREWQLSDNAAYMHYCPNE TIDGIAIDETPDFGADVVVAADFSSTILSRPIDVSRYGVIYAGAQKNIGPAGLTIVIVREDLLGKANIACPSILDYSILN DNGSMFNTPPTFAWYLSGLVFKWLKANGGVAEMDKINQQKAELLYGVIDNS--DFYRNDVAKRNRSRMNVPFQLADSALD KLFLEESFAAGLHALKGHRVVGGMRASIYNAMPLEGVKALTDFMVEFERRHG >1bt4a.pdb SERAYNFNAGPAALPLEVLERA-QAEFVDYQHTGMSIMEMSHRGAVYEAVHNEAQARLLALLGNPTGYKVLFIQGGASTQ FAMIPMNFLKEGQTANYVMTGSWASKALKEAKLIGDTHVAA--------SSEASNYMTLPKLQEIQLQDNAAYLHLTSNE TIEGAQFKAFPDTG-SVPLIGDMSSDILSRPFDLNQFGLVYAGAQKNLGPSGVTVVIVREDLVAESPKHLPTMLRYDTYV KNNSLYNTPPSFGIYMVNEVLKWIEERGGLEGVQQANRKKASLIYDAIDQSGGF-YRGCVDVDSRSDMNITFRLASEELE KEFVKASEQEGFVGLKGHRSVGGLRASIYNAVPYESCEALVQFMEHFKRSRG