>2d27A (A:) observed residues (from ATOM records)
meqrsaetriveallerrrlkdtdllrarqlqaesgmgllallgrlglvserdhaetcae
vlglplvdarqlgdtppemlpevqglslrflkqfhlcpvgerdgrldlwiadpyddyaid
avrlatglplllhvglrseiddlierwy