>2z91C (C:) observed residues (from ATOM records)
qllesgpdlvkpsqslsltctvtgysitsgynwhwirqfpgnklewmgyihyrgttnynt
slksrisitrdssknqfflqlnsvttedtatyycacddfysdywgqgtivtvssakttpp
svyplapgmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlsssvtvpwp
setvtcnvahpasstkvdkkivp