Figure 1 | Scientific Reports

Figure 1

From: Electron transfer pathways in a light, oxygen, voltage (LOV) protein devoid of the photoactive cysteine

Figure 1

Structures of the redox states of FMN (A): the oxidized FMN (ox), the one-electron reduced neutral semiquinone radical FMNH● (sq) and the fully reduced FMNH2 (hq). Schematic of the LOV domain photocycle (B): Upon blue-light absorption in the dark state (LOV450), the excited singlet state of FMN is formed. After conversion to the excited triplet state (LOV715), a covalent flavin-cysteine adduct is formed (LOV390), which recovers back to LOV450 in the dark.

Back to article page