>2br3B (B:) observed residues (from ATOM records)
dysrqnfldlnlfrglgedpayhppvltdrprdwpldrwaeaprdlgysdfspyqwrglr
mlkdpdtqavyhdmlwelrprtivelgvynggslawfrdltkimgidcqvigidrdlsrc
qipasdmenitlhqgdcsdlttfehlremahplifiddahantfnimkwavdhlleegdy
fiiedmipywyryapqlfseylgafrdvlsmdmlyanassqldrgvlrrvaa