>1f33B (B:) observed residues (from ATOM records)
tnllytrndvsdsekkatvellnrqviqfidlslitkqahwnmrganfiavhemldgfrt
alidhldtmaeravqlggvalgttqvinsktplksypldihnvqdhlkeladryaivand
vrkaigeakdddtadiltaasrdldkflwfiesnie