LOV1 domain of Avena sativa phototropin
Protein DomainThe LOV1 domain of Avena sativa phototropin is a PAS-family blue-light-sensing protein domain that binds flavin mononucleotide (FMN). It undergoes a self-contained photocycle in which illumination causes loss of blue-light absorbance through formation of a flavin-cysteinyl adduct, followed by spontaneous dark recovery.