>2xafB (B:) observed residues (from ATOM records)
rkppkgmflsqedveavsanataattvlrqldmelvsvkrqiqnikqtnsalkekldggi
epyrlpeviqkcnarwtteeqllavqairkygrdfqaisdvignksvvqvknffvnyrrr
fnidevlqeweae