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arcB | Aerobic respiration control sensor protein ArcB; Member of the two-component regulatory system ArcB/ArcA. Sensor-regulator protein for anaerobic repression of the arc modulon. Activates ArcA via a four-step phosphorelay. ArcB can also dephosphorylate ArcA by a reverse phosphorelay involving His-717 and Asp-576. (778 aa) | ||||
glpD | Sn-glycerol-3-phosphate dehydrogenase, aerobic, FAD/NAD(P)-binding; Conversion of glycerol 3-phosphate to dihydroxyacetone. Uses molecular oxygen or nitrate as electron acceptor. (501 aa) | ||||
lldP | L-lactate permease; Transports L-lactate across the membrane. Can also transport D-lactate and glycolate. Seems to be driven by a proton motive force. (551 aa) | ||||
lldR | Dual role activator/repressor for lldPRD operon; May be a regulatory protein for the LCT genes. (258 aa) | ||||
lldD | L-lactate dehydrogenase, FMN-linked; Catalyzes the conversion of L-lactate to pyruvate. Seems to be a primary dehydrogenase in the respiratory chain. To a lesser extent, can also oxidize DL-alpha-hydroxybutyrate, but not D-lactate. (396 aa) |