Milliseconds to seconds timescale, filling the gap in the photo-reaction of c...

The protein carH associates with the B12 vitamin to form a light-sensitive gene repressor in bacteria. The gene repressive state in the dark binds to the DNA as a tetramer. The...CarH蛋白与维生素B12结合，在细菌中形成一类光敏感型基因阻遏物（gene repressor）。该阻遏物在黑暗条件下以四聚体形式结合DNA。