>2cxxB (B:) observed residues (from ATOM records)
atiifagrsnvgkstliyrltgkkvrrkiieiewknhkiidmpgfgfmmglpkevqerik
deivhfiednaknidvavlvvdgkaapeiikrwekrgeipidvefyqflreldiptivav
nkldkiknvqevinflaekfevplseidkvfipisakfgdnierlknrifevirer