Results 51 to 60 of about 89,729 (302)

Heterocyst Thylakoid Bioenergetics

Life, 2019
Heterocysts are specialized cells that differentiate in the filaments of heterocystous cyanobacteria. Their role is to maintain a microoxic environment for the nitrogenase enzyme during diazotrophic growth.
Ann Magnuson
doaj   +1 more source

Exploiting photosynthesis-driven P450 activity to produce indican in tobacco chloroplasts

Frontiers in Plant Science, 2023
Photosynthetic organelles offer attractive features for engineering small molecule bioproduction by their ability to convert solar energy into chemical energy required for metabolism.
Silas B. Mellor, James B. Y. H. Behrendorff, James B. Y. H. Behrendorff, Johan Ø. Ipsen, Christoph Crocoll, Tomas Laursen, Elizabeth M. J. Gillam, Mathias Pribil   +7 more
doaj   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen. [PDF]

FEBS J
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Garcia Garcia C, Brabender M, Martin WF.
europepmc   +2 more sources

An integrated biochemical system for nitrate assimilation and nitric oxide detoxification in Bradyrhizobium japonicum [PDF]

, 2016
Rhizobia are recognized to establish N(2)-fixing symbiotic interactions with legume plants. Bradyrhizobium japonicum, the symbiont of soybeans, can denitrify and grow under free-living conditions with nitrate (NO(3)(−)) or nitrite (NO(2)(−)) as sole ...
Alderton, Ana Salas, Andrew J. Gates, Angelo, Bates, Bedmar, Bedmar, Bergersen, Cabrera, Crutzen, David J. Richardson, Delgado, Delgado, Egelhoff, Eulogio J. Bedmar, Franck, Fukuda, Gardner, Gates, Gilberthorpe, Goddard, Hauser, Hernández-Urzúa, Horchani, Inaba, Juan J. Cabrera, Kaneko, Kartal, Kato, Kim, Lin, Luque-Almagro, Luque-Almagro, Maia, Maia, María J. Delgado, María J. Torres, Meakin, Meakin, Mesa, Miller, Mills, Moreno-Vivián, Moreno-Vivián, Nicholas, Pino, Pittman, Poole, Pullan, Ravishankara, Regensburger, Rinaldo, Robles, Rowley, Sambrook, Schinko, Simon, Spiro, Spiro, Sánchez, Sánchez, Sánchez, Tinajero-Trejo, Torres, Torres, Vargas, Velasco, Vine, Vine, Zumft   +69 more
core   +1 more source

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

Angewandte Chemie, EarlyView.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol, Yimo Yang, Chi Chung Lee, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +2 more sources

The oxidoreductase activity of Rnf balances redox cofactors during fermentation of glucose to propionate in Prevotella

Scientific Reports, 2023
Propionate is a microbial metabolite formed in the gastrointestinal tract, and it affects host physiology as a source of energy and signaling molecule. Despite the importance of propionate, the biochemical pathways responsible for its formation are not ...
Bo Zhang, Christopher Lingga, Hannah De Groot, Timothy J. Hackmann   +3 more
doaj   +1 more source

NsrR from Streptomyces coelicolor is a nitric oxide-sensing [4Fe-4S] cluster protein with a specialized regulatory function [PDF]

, 2015
The Rrf2 family transcription factor NsrR controls expression of genes in a wide range of bacteria in response to nitric oxide (NO). The precise form of the NO-sensing module of NsrR is the subject of controversy because NsrR proteins containing either ...
Al-Bassam, Mahmoud, Crack, Jason, Cramer, Stephen, Dodd, Erin, Hamilton, Christopher, Holland, Ashley, Hutchings, Matthew, Johnson, Michael, Kamali, Saeed, Knowles, Felicity, Le Brun, Nick, Munnoch, John Tyson, Thomson, Andrew   +12 more
core   +1 more source

Immunological comparison of ferredoxins [PDF]

FEBS Letters, 1975
1. Introduction The biological significance of ferredoxins in various processes, and the increasing number of them that have been isolated and characterized from bacterial, plant and animal systems, have stimulated investigations on the physico-chemical properties of these proteins [ 1,2].
Tel-Or, E., Cammack, R., Hall, D.O.
openaire   +2 more sources

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

FEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source

Functional Characterization of the Eukaryotic Cysteine Desulfurase Nfs1p from Saccharomyces cerevisiae [PDF]

, 2004
Previous studies have indicated that the essential protein Nfs1 performs a crucial role in cellular iron-sulfur (Fe/S) protein maturation. The protein is located predominantly in mitochondria, yet low amounts are present in cytosol and nucleus.
Balk, Balk, Cupp-Vickery, Diekert, Dutkiewicz, Floss, Frazzon, Frazzon, Garland, Gerber, Gerber, Gietz, Gyula Kispal, Harlow, Hoff, Janneke Balk, Jaschkowitz, Jens T. Kaiser, Kaiser, Kambampati, Kambampati, Katalin Sipos, Kaut, Kim, Kispal, Knight, Knight, Knox, Kolman, Land, Lange, Lange, Lauhon, Leibrecht, Leipuviene, Li, Lill, Matthies, Meyer, Mihara, Mühlenhoff, Mühlenhoff, Mühlenhoff, Nachin, Nadine Richhardt, Nakai, Nakai, Nett, Nilsson, Outten, Papenbrock, Pierrel, Roland Lill, Roy, Sambrook, Schilke, Schwartz, Sherman, Silberg, Sipos, Skovran, Stein, Strain, Takahashi, Tong, Tong, Ulrich Mühlenhoff, Ungermann, Voisine, Wang, Yuvaniyama, Zheng, Zheng, Zheng   +73 more
core   +3 more sources