Sentence examples for bidirectional hydrogenase from inspiring English sources
The genes of NDH complex, cytochrome c oxidase and ATP synthase are significantly overexpressed in mixotrophy during the day compared to autotrophy with synchronous expression of the bidirectional hydrogenase genes possibly to maintain redox balance.
In cyanobacteria this enzyme is known as the bidirectional hydrogenase.
We could not detect any cyanobacterial bidirectional hydrogenase in the samples taken from the open ocean.
HypA1 is involved in nickel insertion into the bidirectional hydrogenase active site and is essential for hydrogenase activity in Synechocystis [58].
Starting from anaerobiosis, the bidirectional hydrogenase is known to be used as an electron valve, when cells switch from fermentation to photosynthesis [61] [64].
All the completely sequenced cyanobacterial strains that harbor the bidirectional hydrogenase genes also harbor the gene of a pyruvate:flavodoxin/ferredoxin oxidoreductase (PFOR), nifJ.
These sequences were most similar to the available bidirectional hydrogenases of Synechococcus strains (Fig. S8, supporting information).
The bidirectional [NiFe] hydrogenase of Synechocystis is a heteropentameric enzyme in which hydrogenase activity is located to the HoxYH subunits, while the HoxEFU subunits constitute a diaphorase for electron transfer to and from the hydrogenase subunits.
Cyanobacteria contain a bidirectional [NiFe] hydrogenase which transiently produces hydrogen upon exposure of anoxic cells to light, potentially acting as a "valve" releasing excess electrons from the electron transport chain.
The disruption of ldhA gene that is responsible for NADH consumption in lactate production in Synechococcus sp. PCC 7002 had resulted in a significant increase in the NADH/NAD+ ratio and a concomitant fivefold increase in hydrogen production by the native bidirectional [NiFe] hydrogenase [ 39].
Bidirectional NiFe hydrogenases of PNSB may also create an improved concern for H2 production exploiting photosynthetic bacteria [50, 56].
