>4q4zA (A:) observed residues (from ATOM records)
sklkapvftvrtqgreygefvleplergfgvtlgnplrrillssipgtavtsvyiedvlh
efstipgvkedvveiilnlkelvvrflnpslqtvtlllkaegpkevkardflpvadveim
npdlhiatleeggrlnmevrvdrgvgyvpaekhgikdrinaipvdavfspvrrvafqved
trlgqrtdldkltlriwtdgsvtplealnqaveilrehltyfsnpqaaava