>2xg4B (B:) SEQRES residues gpfpppgmslpeywgeehvwwdgraafhgevvrpactlamedawqiidmgetpvrdlqng fsgperkfslrlrncefnsqggnlfsdsrirvtfdgvrgetpdkfnlsgqakginlqiad vrgniaragkvmpaipltgneealdytlrivrngkkleagnyfavlgfrvdye