1. c.34.1 Homo-oligomeric flavin-containing Cys decarboxylases, HFCD Homo-oligomeric flavin-containing Cys decarboxylases, HFCD 3 layers: a/b/a; parallel beta-sheet of 6 strands, order 321456 1sbz d1sbzc_ C:12-27,36-47,50-59,78-87,157-174