>4e2sA (A:) observed residues (from ATOM records)
piywkatnptlspshlqdlpgftrsvykrdhalitpeshvysplpdwtntlgaylitpat
gshfvmylakmkemsssglppqdierlifvvegavtltnssskkltvdsyaylppnfhhs
ldcvesatlvvferryeylgshttelivgstdkqplletpgevfelrkllpmsvaydfni
htmdfqpgeflnvkevhynqhgllllegqgiyrlgdnwypvqagdviwmapfvpqwyaal
gktrsryllykdvnrnpl