>2a69A (A:) observed residues (from ATOM records)
mldsklkapvftvrtqgreygefvleplergfgvtlgnplrrillssipgtavtsvyied
vlhefstipgvkedvveiilnlkelvvrflnpslqtvtlllkaegpkevkardflpvadv
eimnpdlhiatleeggrlnmevrvdrgvgyvpaekhgikdrinaipvdavfspvrrvafq
vedtrlgqrtdldkltlriwtdgsvtplealnqaveilrehltyfsnpq