... and CET in cyanobacteria is PetP, a ∼10 kDa protein that is also found in red algae but not in green algae and plants. Here, we used cryogenic electron microscopy to determine the structure of the Synechocystis sp. PCC 6803 cyt b 6 f complex in the presence and absence of PetP. Our structures show...

...Shoki Ito; Takashi Osanai Metabolite production from carbon dioxide using sugar catabolism in cyanobacteria has been in the spotlight recently. Synechocystis sp. PCC 6803 ( Synechocystis 6803) is the most studied cyanobacterium for metabolite production. Previous in vivo analyses revealed...

... effects of altering seven highly conserved residues within Ycf54, which is required for MgPME–cyclase activity in the cyanobacterium Synechocystis . Synechocystis strains harbouring the Ycf54 alterations D39A, F40A and R82A were blocked to varying degrees at the MgPME–cyclase step, whereas the A9G...

... SynGCL and SynGS from Synechocystis sp. PCC 6803 using steady-state kinetics. Although SynGCL shares ~15% sequence identity with the enzyme from plants and α-proteobacteria, sequence comparison suggests that these enzymes share similar active site residues. Biochemically, SynGCL lacks the redox...

... to a change in the environment. In the present study we show that the small LuxR-type regulator PedR interacts with Trx (thioredoxin) to achieve photosynthetic electron-transport-dependent transcriptional regulation in the cyanobacterium Synechocystis sp. PCC 6803. TrxM, an isoform of Trx, was isolated...

...Arne Hammer; David R. W. Hodgson; Martin J. Cann The Slr1991 adenylyl cyclase of the model prokaroyte Synechocystis PCC 6803 was stimulated 2-fold at 20 mM total C i (inorganic carbon) at pH 7.5 through an increase in k cat . A dose response demonstrated an EC 50 of 52.7 mM total C i at pH 6.5...

...Carol A. BONNER; Roy A. JENSEN; John E. GANDER; Nemat O. KEYHANI The TyrA protein family includes prephenate dehydrogenases, cyclohexadienyl dehydrogenases and TyrA a s (arogenate dehydrogenases). tyrA a from Synechocystis sp. PCC 6803, encoding a 30 kDa TyrA a protein, was cloned...

...Poul E. JENSEN; James D. REID; C. Neil HUNTER The enzyme magnesium protoporphyrin chelatase catalyses the insertion of magnesium into protoporphyrin, the first committed step in chlorophyll biosynthesis. Magnesium chelatase from the cyanobacterium Synechocystis PCC6803 has been reconstituted...