>1sr6C (C:) observed residues (from ATOM records)
pklsqdeiddlkdvfelfdfwdgrdgavdafklgdvcrclginprnedvfavggthkmge
kslpfeeflpayeglmdceqgtfadymeafktfdregqgfisgaelrhvltalgerlsde
dvdeiikltdlqedlegnvkyedfvkkvmagpypd