>2cxxA (A:) observed residues (from ATOM records)
atiifagrsnvgkstliyrltgkkvrrgkrpgvtrkiieiewknhkiidmpgfgfmmglp
kevqerikdeivhfiednaknidvavlvvdgkaapeiikrwekrgeipidvefyqflrel
diptivavnkldkiknvqevinflaekfevplseidkvfipisakfgdnierlknrifev
irer