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Gene Review

psbV  -  cytochrome C-550

Synechocystis sp. PCC 6803

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Disease relevance of psbV

 

High impact information on psbV

 

Chemical compound and disease context of psbV

  • Specific requirements for cytochrome c-550 and the manganese-stabilizing protein in photoautotrophic strains of Synechocystis sp. PCC 6803 with mutations in the domain Gly-351 to Thr-436 of the chlorophyll-binding protein CP47 [4].
 

Biological context of psbV

 

Associations of psbV with chemical compounds

  • (6) Photoactivation of the oxygen-evolving complex after removal of the manganese cluster by hydroxylamine showed a higher quantum yield in the delta psbV mutant than in the delta psbU mutant or wild type [6].
  • (4) The rise time of the O2 signal during the S3-[S4]-S0 transition was increased slightly in the delta psbV mutant but not in the delta psbU mutant [6].
  • Mutations in a putative chloride efflux transporter gene suppress the chloride requirement of photosystem II in the cytochrome c550-deficient mutant [7].
  • This histidine-tagged Photosystem II preparation stably evolved oxygen at a high rate (2440 micromol O2 (mg chl)-1 h-1), exhibited an alpha-band absorption maximum at 674 nm, and was highly enriched in a number of Photosystem II components including cytochrome c550 [8].
 

Other interactions of psbV

  • This supports our biochemical evidence that cytochrome c-550 is associated with the lumenal side of photosystem II as one of the extrinsic proteins enhancing oxygen evolution (Shen, J.-R., Ikeuchi, M., and Inoue, Y. (1992) FEBS Lett. 301, 145-149; Shen, J.-R., and Inoue, Y. (1993) Biochemistry 32, 1825-1832) [1].
  • (3) The delta psbV and delta psbU mutants exhibited elevated peak temperature for the thermoluminescence B- and Q-bands indicative of more stable S2 states [6].
 

Analytical, diagnostic and therapeutic context of psbV

References

  1. The role of cytochrome c-550 as studied through reverse genetics and mutant characterization in Synechocystis sp. PCC 6803. Shen, J.R., Vermaas, W., Inoue, Y. J. Biol. Chem. (1995) [Pubmed]
  2. Analysis of the psbU gene encoding the 12-kDa extrinsic protein of photosystem II and studies on its role by deletion mutagenesis in Synechocystis sp. PCC 6803. Shen, J.R., Ikeuchi, M., Inoue, Y. J. Biol. Chem. (1997) [Pubmed]
  3. Mutation of Phe-363 in the photosystem II protein CP47 impairs photoautotrophic growth, alters the chloride requirement, and prevents photosynthesis in the absence of either PSII-O or PSII-V in Synechocystis sp. PCC 6803. Clarke, S.M., Eaton-Rye, J.J. Biochemistry (1999) [Pubmed]
  4. Specific requirements for cytochrome c-550 and the manganese-stabilizing protein in photoautotrophic strains of Synechocystis sp. PCC 6803 with mutations in the domain Gly-351 to Thr-436 of the chlorophyll-binding protein CP47. Morgan, T.R., Shand, J.A., Clarke, S.M., Eaton-Rye, J.J. Biochemistry (1998) [Pubmed]
  5. Expression, mutagenesis, and characterization of recombinant low-potential cytochrome c550 of photosystem II. Andrews, H., Li, Z., Altuve-Blanco, A., Rivera, M., Burnap, R.L. Biochemistry (2005) [Pubmed]
  6. Functional characterization of Synechocystis sp. PCC 6803 delta psbU and delta psbV mutants reveals important roles of cytochrome c-550 in cyanobacterial oxygen evolution. Shen, J.R., Qian, M., Inoue, Y., Burnap, R.L. Biochemistry (1998) [Pubmed]
  7. Mutations in a putative chloride efflux transporter gene suppress the chloride requirement of photosystem II in the cytochrome c550-deficient mutant. Kobayashi, M., Katoh, H., Ikeuchi, M. Plant Cell Physiol. (2006) [Pubmed]
  8. Isolation of a highly active photosystem II preparation from Synechocystis 6803 using a histidine-tagged mutant of CP 47. Bricker, T.M., Morvant, J., Masri, N., Sutton, H.M., Frankel, L.K. Biochim. Biophys. Acta (1998) [Pubmed]
  9. Introduction of the 305Arg-->305Ser mutation in the large extrinsic loop E of the CP43 protein of Synechocystis sp. PCC 6803 leads to the loss of cytochrome c(550) binding to Photosystem II. Bricker, T.M., Young, A., Frankel, L.K., Putnam-Evans, C. Biochim. Biophys. Acta (2002) [Pubmed]
 
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