>2z1sA (A:) observed residues (from ATOM records)
ntfifpatfmwgtstssyqieggtdeggrtpsiwdtfcqipgkviggdcgdvacdhfhhf
kedvqlmkqlgflhyrfsvawprimpaagiineegllfyehlldeielaglipmltlyhw
dlpqwiedeggwtqretiqhfktyasvimdrfgerinwwntinepycasilgygtgehap
ghenwreaftaahhilmchgiasnlhkekgltgkigitlnmehvdaaserpedvaaairr
dgfinrwfaeplfngkypedmvewygtylngldfvqpgdmeliqqpgdflginyytrsii
rstndasllqveqvhmeepvtdmgweihpesfyklltriekdfskglpilitengaamrd
elvngqiedtgrqryieehlkachrfieeggqlkgyfvwsfldnfewawgyskrfgivhi
nyetqertpkqsalwfkqmmakngf