3.   b.82.4        Regulatory protein AraC    
                   Double-stranded beta-helix one turn of helix is made by two pairs of antiparallel strands linked with short turns ! has appearance of a sandwich of distinct architecture and jelly-roll topology
                   2aac  d2aacb_  B:40-52,69-77,101-110,123-144,145-168
                   2ara  d2araa_  A:40-52,69-77,101-110,123-143,145-167
                   2arc  d2arca_  A:40-52,69-77,101-110,123-143,145-167
                   1xja  d1xjab_  B:40-51,69-77,101-110,123-143,145-168
                   1xja  d1xjac_  C:40-52,69-76,101-110,123-144,145-168
                   2aac  d2aaca_  A:40-52,69-77,101-110,123-143,145-168
                   2arc  d2arcb_  B:40-52,69-77,101-110,123-143,145-170
                   1xja  d1xjaa_  A:40-52,69-77,101-110,123-143,145-170
                   1xja  d1xjad_  D:39-52,69-77,101-110,123-143,145-171
                   1xja  d1xjae_  E:40-51,69-76,101-110,123-143,145-169