Cartoons view of Flavodoxin, an enzyme that binds flavin mononucleotide (FMN), and transfers electrons to other enzymes. It has 5 parallel beta strands running through its center, flanked by several alpha-helices that connect the beta-strands. Strand number 5 is composed of 2 discontinuous segments.

The FMN binds at the loops near the C-terminal ends of the beta-strands. The strands all have right-handed connectivity, and this can be verified by clicking the buttons below.