Results 91 to 100 of about 3,197 (196)

Influence of heme and pH on the oligomeric states of Brucella melitensis bacterioferritin

Acta Crystallographica Section D, Volume 82, Issue 9, Page 1062-1071, September 2026.
The oligomerization of B. melitensis bacterioferritin (BmBfr) was studied using X‐ray crystallography, size‐exclusion chromatography and thermal shift analysis. These techniques allowed the characterization of both apo and holo BmBfr, highlighting the impact of heme and pH on the oligomerization mechanism.Bacterioferritin from Brucella melitensis ...
Tanguy Scaillet, Clément Champagne, Johan Wouters   +2 more
wiley   +1 more source

Serpentine Biocrust Microbes Maintain Nitrogen Cycling Under Drought and Heavy Metal Stress

Ecological Research, Volume 41, Issue 5, September 2026.
This study highlights the complex interplay between soil geochemistry and moisture availability in shaping microbial communities within wetter and drier serpentine and non‐serpentine biological soil crusts. It demonstrates that both factors influence the structure of nitrogen‐cycling microbial communities and the processes they mediate.
Sandra Barnard, Oluwatobi Barachiah, Stefan J. Siebert, Danielle Botha, Sarina Claassens   +4 more
wiley   +1 more source

Transcriptomics and starch biosynthesis analysis in leaves and developing seeds of mung bean provide a basis for genetic engineering of starch composition and seed quality

Frontiers in Plant Science
Mung bean starch is distinguished by its exceptional high amylose content and regulation of starch biosynthesis in leaves and storage tissues, such as seeds, share considerable similarities. Genetic engineering of starch composition and content, requires
Kamolchanok Umnajkitikorn, Pakpoom Boonchuen, Rattanavalee Senavongse, Sunanta Tongta, Yu Tian, Yaqi Hu, Bent Larsen Petersen, Andreas Blennow   +7 more
doaj   +1 more source

Removal of Photosystem I Subunit PsaE Leads to Photosynthetic Hydrogen Production in a Cyanobacterial PsaF‐HoxYH Fusion Strain

Plant, Cell &Environment, Volume 49, Issue 9, Page 6850-6858, September 2026.
ABSTRACT Photosynthetic hydrogen (photoH2) production is a promising approach for the utilisation of solar energy. Fusion of a hydrogenase (H2ase) to photosystem I (PSI) provides a direct light‐driven route for photoH2 generation. We established the lateral transmembrane subunit PsaF of PSI as a new fusion partner for the NiFe‐hydrogenase (HoxYH) in ...
Florian Paul, Nadine Strabel, Marko Boehm, Jens Appel, Kirstin Gutekunst   +4 more
wiley   +1 more source

From o‐Phenylenediamine to Flavin Derivatives: A Potential Prebiotic Carbon Skeleton Expansion With Formaldehyde, Cyanide, and CO2

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A Strecker‐type reaction of aromatic ortho‐diamines with various aldehydes and cyanide assembles the bicyclic amidine core of flavin‐derived heterocycles under mild conditions. Subsequent oxidation, radical or photochemical cyanation, carboxylation with CO2, and CO2‐mediated cyclization build the three‐ring alloxazine scaffold. This sequence provides a
Christian Held, Rodrigo José da Silva Lima, Ji‐Woong Lee   +2 more
wiley   +1 more source

Improving Activity and Stability of Candida boidinii Formate Dehydrogenase Through Rational Active Site Engineering

ChemBioChem, Volume 27, Issue 15, 14 August 2026.
In search of improved biocatalysts for the NADH cofactor recycling in synthetic reductive biotransformations, C. boidinii formate dehydrogenase is the subject of a rational protein engineering approach. The study delivers an enzyme variant with improved specific activities and a more desirable pH and temperature profile, which shows promising ...
Marisa Bickmann, Andrea Rodil, Jan Deska
wiley   +1 more source

Zinc pyrithione impairs iron-sulfur cluster biogenesis in Mycobacterium tuberculosis

BMC Microbiology
Background Tuberculosis remains a major global health threat, especially with the increasing prevalence of drug-resistant Mycobacterium tuberculosis (Mtb). There is an urgent need to develop new antibiotics with novel mechanisms of action.
Lu Wang, Xuelin Wang, Lingling Xu, Bin Wang, Deqian Ji, Yangxue Ye, Yu Lu   +6 more
doaj   +1 more source

A dynamic protein interactome drives energy conservation and electron flux in Thermococcus kodakarensis

Applied and Environmental Microbiology
Life is supported by energy gains fueled by catabolism of a wide range of substrates, each reliant on the selective partitioning of electrons through redox (reduction and oxidation) reactions.
Sere A. Williams, Danielle M. Riley, Teagan P. Rockwood, David A. Crosby, Katherine D. Call, Jared J. LeCuyer, Thomas J. Santangelo   +6 more
doaj   +1 more source

The human gut microbe Eubacterium limosum utilizes flavodoxin over ferredoxin for lactate metabolism

Applied and Environmental Microbiology
Eubacterium limosum is an abundant gut microbe that efficiently metabolizes lactate to produce the short-chain fatty acids, butyrate and acetate. The key oxidoreductase enzymes, formate dehydrogenase (FDH), carbon monoxide dehydrogenase (CODH) of the ...
Saisuki Putumbaka, Nana Shao, Aaron P. Donaghy, Emma G. Harrison, Farris L. Poole, Michael P. Thorgersen, Gerrit J. Schut, Michael W. W. Adams   +7 more
doaj   +1 more source

THE NATURE OF IRON IN FERREDOXIN [PDF]

Proceedings of the National Academy of Sciences, 1964
D C, BLOMSTROM, E, KNIGHT, W D, PHILLIPS, J F, WEIHER   +3 more
openaire   +2 more sources