>4fbpB (B:) observed residues (from ATOM records)
nivtltrfvmeqgrkargtgemtqllnslctavkaistavrkagiahlygiagskldvls
ndlvinvlkssfatcvlvteedknaiivepekrgkyvvcfdpldgssnidclvsigtifg
iyrknstdepsekdalqpgrnlvaagyalygsatmlvlamvngvncfmldpaigefilvd
rnvkikkkgsiysinegyakefdpaiteyiqrkkfppdnsapygaryvgsmvadvhrtlv
yggifmypankkspkgklrllyecnpmayvmekagglattgkeavldivptdihqrapii
lgspedvtelleiyqkha