DNA photolyase homologs are the major UV resistance factors in the cyanobacterium Synechocystis sp. PCC 6803

2001 ◽  
Vol 264 (6) ◽  
pp. 924-931 ◽  
Author(s):  
W.-O. Ng ◽  
H. B. Pakrasi
Keyword(s):  
Uv Resistance ◽  
Dna Photolyase ◽  
Resistance Factors ◽  
Synechocystis Sp ◽  
Pcc 6803

phrA, the major photoreactivating factor in the cyanobacterium Synechocystis sp. strain PCC 6803 codes for a cyclobutane-pyrimidine-dimer-specific DNA photolyase

2000 ◽  
Vol 173 (5-6) ◽  
pp. 412-417 ◽  
Author(s):  
Wing-On Ng ◽  
Rodolfo Zentella ◽  
Yinsheng Wang ◽  
John-Stephen A. Taylor ◽  
Himadri B. Pakrasi
Keyword(s):  
Pyrimidine Dimer ◽  
Cyclobutane Pyrimidine Dimer ◽  
Dna Photolyase ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals Cloning of the psbK gene from Synechocystis sp. PCC 6803 and characterization of photosystem II in mutants lacking PSII-K

1991 ◽  
Vol 266 (17) ◽  
pp. 11111-11115
Author(s):  
M. Ikeuchi ◽  
B. Eggers ◽  
G.Z. Shen ◽  
A. Webber ◽  
J.J. Yu ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals A new insight into role of phosphoketolase pathway in Synechocystis sp. PCC 6803

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Anushree Bachhar ◽  
Jiri Jablonsky
Keyword(s):  
In Silico Analysis ◽  
Bioinformatic Analysis ◽  
Phosphoglycerate Mutase ◽  
Phosphoketolase Pathway ◽  
Multi Level ◽  
Silico Analysis ◽  
Insight Into ◽  
Synechocystis Sp ◽  
Pcc 6803

AbstractPhosphoketolase (PKET) pathway is predominant in cyanobacteria (around 98%) but current opinion is that it is virtually inactive under autotrophic ambient CO2 condition (AC-auto). This creates an evolutionary paradox due to the existence of PKET pathway in obligatory photoautotrophs. We aim to answer the paradox with the aid of bioinformatic analysis along with metabolic, transcriptomic, fluxomic and mutant data integrated into a multi-level kinetic model. We discussed the problems linked to neglected isozyme, pket2 (sll0529) and inconsistencies towards the explanation of residual flux via PKET pathway in the case of silenced pket1 (slr0453) in Synechocystis sp. PCC 6803. Our in silico analysis showed: (1) 17% flux reduction via RuBisCO for Δpket1 under AC-auto, (2) 11.2–14.3% growth decrease for Δpket2 in turbulent AC-auto, and (3) flux via PKET pathway reaching up to 252% of the flux via phosphoglycerate mutase under AC-auto. All results imply that PKET pathway plays a crucial role under AC-auto by mitigating the decarboxylation occurring in OPP pathway and conversion of pyruvate to acetyl CoA linked to EMP glycolysis under the carbon scarce environment. Finally, our model predicted that PKETs have low affinity to S7P as a substrate.

scholarly journals Synechocystis sp. PCC 6803 mutant lacking both photosystems exhibits strong carotenoid-induced quenching of phycobilisome fluorescence

FEBS Letters ◽  
2011 ◽  
Vol 585 (3) ◽  
pp. 585-589 ◽  
Author(s):  
Marina G. Rakhimberdieva ◽  
Fedor I. Kuzminov ◽  
Irina V. Elanskaya ◽  
Navassard V. Karapetyan
Keyword(s):  
Synechocystis Sp ◽  
Pcc 6803
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