>3n2iB (B:) observed residues (from ATOM records)
nakfivieglegagkstaiqvvvetlqqngidhitrtrepggtllaeklralvkeehpge
elqditelllvyaarvqlvenvikpalargewvvgdrhdmssqayqgggrqiapstmqsl
kqtalgdfkpdltlyldidpklglerargrgeldriekmdisfferarerylelansdds
vvmidaaqsieqvtadirralqdwlsqvn