>4msvA (A:) observed residues (from ATOM records)
lrkvahltgksnsrsmplewedtygivllsgvkykkgglvinetglyfvyskvyfrgqsc
nnlplshkvymrnskypqdlvmmegkmmsycttgqmwarssylgavfnltsadhlyvnvs
elslvnfeesqtffglykl