>2co3A (A:) observed residues (from ATOM records) gsqksvdivfsspqdltvslipvsglkagknapsakiaklvvnsttlkefgvrgisnnvv dstgtawrvagkntgkeigvglssdslrrsdstekwngvnwmtfnsndtldivltgpaqn vtadtypitldvvgy