>1bkgB (B:) observed residues (from ATOM records)
mrglsrrvqamkpsatvavnakalelrrqgvdlvaltagepdfdtpehvkeaarralaqg
ktkyappagipelrealaekfrrenglsvtpeetivtvggkqalfnlfqaildpgdeviv
lspywvsypemvrfaggvvvevetlpeegfvpdpervrraitprtkalvvnspnnptgav
ypkevlealarlavehdfylvsdeiyehllyegehfspgrvapehtltvngaakafamtg
wrigyacgpkevikamasvssqsttspdtiaqwatlealtnqeasrafvemareayrrrr
dlllegltalglkavrpsgafyvlmdtspiapdevraaerlleagvavvpgtdfaafghv
rlsyatseenlrkalerfarvl