>4cq6B (B:) observed residues (from ATOM records)
kvqelsvyeineldrhspkilknafslmfglgdlvpftnklytgdlkkrvgitaglcvvi
ehvpekkgerfeatysfyfgdyghlsvqgpyltyedsflaitggagifegaygqvklqql
vyptklfytfylkglandlpleltgtpvppskdiepapeakalepsgvisnytn