>1zchA (A:) observed residues (from ATOM records)
mneviksltdhrsirsytdepvaqeqldqiieavqsapssingqqvtvitvqdkerkkki
selaggqpwidqapvfllfcadfnrakialedlhdfkmeitnglesvlvgavdagialgt
ataaaeslglgtvpigavrgnpqeliellelpkyvfplsglvighpadrsakkprlpqea
vnhqetylnqdeltshiqaydeqmseymnkrtngketrnwsqsiasyyerlyyphireml
ekqgfkvek