>2r2fB (B:) observed residues (from ATOM records)
klsrisainwnkiqddkdlevwnrltsnfwlpekvplsndipawqtlsaaeqqltirvft
gltlldtiqniagapslmadaitpheeavlsnisfmeavharsyssifstlcqtkevdaa
yawseenpplqrkaqiilahyvsdeplkkkiasvflesflfysgfwlpmyfssrgkltnt
adlirliirdeavhgyyigykyqialqklsaiereelklfaldllmelydneirytealy
aetgwvndvkaflcynankalmnlgyealfppemadvnpailaal