>2a2uA (A:) observed residues (from ATOM records) eeasstrgnldvaklngdwfsivvasnkrekieengsmrvfmqhidvlenslgfkfrike ngecrelylvayktpedgeyfveydggntftilktdydryvmfhlinfkngetfqlmvly grtkdlssdikekfaklceahgitrdniidltktdrcl