>3q7pB (B:) observed residues (from ATOM records)
svykvlllgapgvgksalarifggvehtydrsivvdgeeaslmvydiweamgdayvivys
vtdkgsfekaselrvqlrrartddvpiilvgnksdlvrsrevsvdegracavvfdckfie
tsaalhhnvqalfegvvrqirlrr