Cyclic photophosphorylation reactions catalyzed by ferredoxin, methyl viologen and anthraquinone sulfonate. Use of photochemical reactions to optimize redox poising
dc.contributor.author | Robinson, Howard H. | en_US |
dc.contributor.author | Yocum, Charles F. | en_US |
dc.date.accessioned | 2006-04-07T17:26:19Z | |
dc.date.available | 2006-04-07T17:26:19Z | |
dc.date.issued | 1980-03-07 | en_US |
dc.identifier.citation | Robinson, Howard H., Yocum, Charles F. (1980/03/07)."Cyclic photophosphorylation reactions catalyzed by ferredoxin, methyl viologen and anthraquinone sulfonate. Use of photochemical reactions to optimize redox poising." Biochimica et Biophysica Acta (BBA) - Bioenergetics 590(1): 97-106. <http://hdl.handle.net/2027.42/23293> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6T1S-47RS901-CC/2/f3fbfe73207ac7cc83d0f9717d1e6637 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/23293 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=7188859&dopt=citation | en_US |
dc.description.abstract | The flavin analogue 5-deazariboflavin is a convenient catalyst for the photoreduction of low-potential redox compounds. In an anaerobic medium with Tricine buffer as the electron donor, 5-deazariboflavin is capable of photoreducing both ferredoxin and methyl viologen. We have used this method to conduct a comparative study of the Photosystem I photophosphorylation activities supported by the reduced forms of ferredoxin, methyl viologen and anthraquinone sulfonate. All of these catalysts are capable of generating high rates (200-500 [mu]mol ATP/h per mg chlorophyll) of cyclic photophosphorylation, but only the activity dependent on ferredoxin exhibits sensitivity to antimycin A. This finding suggests that the size of the catalyst and its ability to approach the thylakoid membrane, rather than low-redox potential, governs antimycin A sensitivity. Ferredoxin-catalyzed activity is, however, less sensitive to inhibition by dibromothymoquinone than are the activities supported by methyl viologen and anthraquinone sulfonate. This discrepancy is due to binding of the inhibitor by ferredoxin. | en_US |
dc.format.extent | 578521 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Cyclic photophosphorylation reactions catalyzed by ferredoxin, methyl viologen and anthraquinone sulfonate. Use of photochemical reactions to optimize redox poising | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbsecondlevel | Chemistry | en_US |
dc.subject.hlbsecondlevel | Chemical Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, The University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, The University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.identifier.pmid | 7188859 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/23293/1/0000230.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0005-2728(80)90149-8 | en_US |
dc.identifier.source | Biochimica et Biophysica Acta | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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