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Metabolite interact...
Metabolite interactions in the bacterial Calvin cycle and implications for flux regulation
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- Sporre, Emil (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Systembiologi
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- Karlsen, Jan (författare)
- KTH,Systembiologi,Science for Life Laboratory, SciLifeLab
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- Schriever, Karen (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Ytbehandlingsteknik
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visa fler...
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- Asplund-Samuelsson, Johannes, 1987- (författare)
- KTH,Systembiologi,Science for Life Laboratory, SciLifeLab
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- Janasch, Markus (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Systembiologi
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- Strandberg, Linnéa (författare)
- KTH,Systembiologi,Science for Life Laboratory, SciLifeLab
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- Kotol, David (författare)
- KTH,Systembiologi,Science for Life Laboratory, SciLifeLab
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- Zeckey, Luise (författare)
- KTH,Tillämpad fysik
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- Piazza, Ilaria (författare)
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC Berlin), Berlin, Germany
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- Syrén, Per-Olof (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Ytbehandlingsteknik
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- Edfors, Fredrik (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Systembiologi
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- Hudson, Elton P. (författare)
- KTH,Science for Life Laboratory, SciLifeLab,Systembiologi
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(creator_code:org_t)
- 2022
- Engelska.
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Metabolite-level regulation of enzyme activity is important for microbes to cope with environmental shifts. Knowledge of such regulations can also guide strain engineering to improve industrial phenotypes. Recently developed chemoproteomics workflows allow for genome-wide detection of metabolite-protein interactions that may regulate pathway activity. We applied limited proteolysis small molecule mapping (LiP-SMap) to identify and compare metabolite-protein interactions in the proteomes of two cyanobacteria and two lithoautotrophic bacteria that fix CO2 using the Calvin cycle. Clustering analysis of the hundreds of detected interactions showed that some metabolites interacted in a species-specific manner, such as interactions of glucose-6-phosphate in Cupriavidus necator and of glyoxylate in Synechocystis sp PCC 6803. These are interpreted in light of the different central carbon conversion pathways present. Metabolites interacting with the Calvin cycle enzymes fructose-1,6/sedoheptulose-1,7-bisphosphatase (F/SBPase) and transketolase were tested for effects on catalytic activity in vitro. The Calvin cycle intermediate glyceraldehyde-3-phosphate activated both Synechocystis and Cupriavidus F/SBPase, which suggests a feed-forward activation of the cycle in both photoautotrophs and chemolithoautotrophs. In contrast to the stimulating effect in reduced conditions, glyceraldehyde-3-phosphate inactivated the Synechocystis F/SBPase in oxidized conditions by accelerating protein aggregation. Thus, metabolite-level regulation of the Calvin cycle is more prevalent than previously appreciated and may act in addition to redox regulation.
Ämnesord
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Bioinformatik och systembiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Bioinformatics and Systems Biology (hsv//eng)
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)
- Av författaren/redakt...
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Sporre, Emil
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Karlsen, Jan
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Schriever, Karen
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Asplund-Samuelss ...
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Janasch, Markus
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Strandberg, Linn ...
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visa fler...
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Kotol, David
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Zeckey, Luise
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Piazza, Ilaria
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Syrén, Per-Olof
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Edfors, Fredrik
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Hudson, Elton P.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Mikrobiologi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Biokemi och mole ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Bioinformatik oc ...
- Av lärosätet
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Kungliga Tekniska Högskolan