Dependence of the Calvin cycle activity on kinetic parameters for the interaction of non‐equilibrium cycle enzymes with their substrates
(1989) In European Journal of Biochemistry 186(3). p.683-687- Abstract
Kinetic model studies and control analyses of the Calvin photosynthesis cycle have been performed to characterize the dependence of the cycle activity on maximum velocities and Kmvalues for the interaction of the non‐equilibrium cycle enzymes and ATP synthetase with their substrates under conditions of light and carbon dioxide saturation. The results show that Km values have no major influence on the cycle activity at optimal concentrations of external orthophosphate. The maximum cycle activity is controlled mainly by the catalytic capacities of ATP synthetase and sedoheptulose‐bisphosphatase, and is close to the maximum cycle flux that can be supported by these two enzymes.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/f53c1ac6-e906-4f06-915c-9f1c19fa563a
- author
- Pettersson, Gösta
LU
and Ryde-Pettersson, Ulf
LU
- organization
- publishing date
- 1989
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Journal of Biochemistry
- volume
- 186
- issue
- 3
- pages
- 5 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- pmid:2606112
- scopus:0024792414
- ISSN
- 0014-2956
- DOI
- 10.1111/j.1432-1033.1989.tb15260.x
- language
- English
- LU publication?
- yes
- id
- f53c1ac6-e906-4f06-915c-9f1c19fa563a
- date added to LUP
- 2017-02-04 11:22:31
- date last changed
- 2025-01-07 06:03:48
@article{f53c1ac6-e906-4f06-915c-9f1c19fa563a, abstract = {{<p>Kinetic model studies and control analyses of the Calvin photosynthesis cycle have been performed to characterize the dependence of the cycle activity on maximum velocities and K<sub>m</sub>values for the interaction of the non‐equilibrium cycle enzymes and ATP synthetase with their substrates under conditions of light and carbon dioxide saturation. The results show that K<sub>m</sub> values have no major influence on the cycle activity at optimal concentrations of external orthophosphate. The maximum cycle activity is controlled mainly by the catalytic capacities of ATP synthetase and sedoheptulose‐bisphosphatase, and is close to the maximum cycle flux that can be supported by these two enzymes.</p>}}, author = {{Pettersson, Gösta and Ryde-Pettersson, Ulf}}, issn = {{0014-2956}}, language = {{eng}}, number = {{3}}, pages = {{683--687}}, publisher = {{Wiley-Blackwell}}, series = {{European Journal of Biochemistry}}, title = {{Dependence of the Calvin cycle activity on kinetic parameters for the interaction of non‐equilibrium cycle enzymes with their substrates}}, url = {{https://lup.lub.lu.se/search/files/24720548/calvin6_substr.pdf}}, doi = {{10.1111/j.1432-1033.1989.tb15260.x}}, volume = {{186}}, year = {{1989}}, }