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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
9
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pubmed:dateCreated |
1992-10-29
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pubmed:abstractText |
In cyanobacteria, the water-soluble cytochrome c-553 functions as a mobile carrier of electrons between the membrane-bound cytochrome b6-f complex and P-700 reaction centers of Photosystem I. The structural gene for cytochrome c-553 (designated cytA) of the cyanobacterium Synechococcus sp. PCC 7942 was cloned, and the deduced amino acid sequence was shown to be similar to known cyanobacterial cytochrome c-553 proteins. A deletion mutant was constructed that had no detectable cytochrome c-553 based on spectral analyses and tetramethylbenzidine-hydrogen peroxide staining of proteins resolved by polyacrylamide gel electrophoresis. The mutant strain was not impaired in overall photosynthetic activity. However, this mutant exhibited a decreased efficiency of cytochrome f oxidation. These results indicate that cytochrome c-553 is not an absolute requirement for reducing Photosystem I reaction centers in Synechococcus sp. PCC 7942.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-16661264,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-16666051,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-208838,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-2432801,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-2501629,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-271968,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3023330,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3023849,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3123460,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3280966,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3474623,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-3714490,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-410354,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6237955,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6286617,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6295368,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6298064,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6329026,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6411738,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-6412038,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-822747,
http://linkedlifedata.com/resource/pubmed/commentcorrection/1967057-94251
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
1040-4651
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
2
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pubmed:geneSymbol |
cytA,
cytB
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
913-24
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pubmed:dateRevised |
2010-9-7
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pubmed:meshHeading |
pubmed-meshheading:1967057-Amino Acid Sequence,
pubmed-meshheading:1967057-Bacterial Proteins,
pubmed-meshheading:1967057-Base Sequence,
pubmed-meshheading:1967057-Cloning, Molecular,
pubmed-meshheading:1967057-Cyanobacteria,
pubmed-meshheading:1967057-Cytochrome c Group,
pubmed-meshheading:1967057-DNA Probes,
pubmed-meshheading:1967057-Gene Expression Regulation, Bacterial,
pubmed-meshheading:1967057-Genes, Bacterial,
pubmed-meshheading:1967057-Molecular Sequence Data,
pubmed-meshheading:1967057-Mutagenesis,
pubmed-meshheading:1967057-Nitrite Reductases,
pubmed-meshheading:1967057-Photosynthetic Reaction Center Complex Proteins,
pubmed-meshheading:1967057-Restriction Mapping
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pubmed:year |
1990
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pubmed:articleTitle |
Cytochrome c-553 is not required for photosynthetic activity in the cyanobacterium Synechococcus.
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pubmed:affiliation |
Carnegie Institution of Washington, Department of Plant Biology, Stanford, California 94305.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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