>2otpB (B:) observed residues (from ATOM records)
lpkptlwaepgsviiqgspvtlrcqgslqaeeyhlyrenksaswvrriqepgkngqfpip
sitwehagryhcqyyshnhsseysdplelvvtgayskptlsalpspvvtlggnvtlqcvs
qvafdgfilckegedehpqclnshshargwswaifsvgpvspsrrwsyrcyaydsnspyv
wslpsdllellvpg