>2r56A (A:) observed residues (from ATOM records)
tqtmkgldiqkvagtwyslamaasdislldaqsaplrvyveelkptpegdleillqkwen
gecaqkkiiaektkipavfkidalnenkvlvldtdykkyllfcmensaepeqslacqclv
rtpevddealekfdkalkalpmhirlsfnptqleeqchi