Results 101 to 110 of about 97,911 (315)

Structural Analysis and Inhibitor Modeling of Bacterioferritin From Brucella abortus

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Iron homeostasis in various pathogenic bacteria is regulated by bacterioferritins (Bfr) which function to store Fe3+ and release Fe2+ as needed for metabolic processes. The Bfr structure consists of 18 kDa subunits in which dimer pairs bind a heme molecule and are assembled into a highly symmetrical 24‐meric spherical structure with an ...
Lijun Liu, Elizabeth K. Harmon, Justin K. Craig, Huili Yao, Kevin P. Battaile, David K. Johnson, Sandhya Subramanian, Wesley C. Van Voorhis, Mario Rivera, Scott Lovell   +9 more
wiley   +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

A haloarchaeal ferredoxin electron donor that plays an essential role in nitrate assimilation [PDF]

, 2011
In the absence of ammonium, many organisms, including the halophilic archaeon Haloferax volcanii DS2 (DM3757), may assimilate inorganic nitrogen from nitrate or nitrite, using a ferredoxin-dependent assimilatory NO3-/NO2- reductase pathway.
Bonete, Mari­a José, Butt, Julea N., Gates, Andrew J., Martínez‑Espinosa, Rosa María, Richardson, David J., Zafrilla, Basilio   +5 more
core   +1 more source

Versatile High‐Sensitivity EPR Using Superconducting Spiral Microresonators

Small Methods, EarlyView.
A significant sensitivity enhancement in conventional X‐band pulsed EPR is achieved using planar spiral microresonators fabricated from high‐temperature superconducting YBCO. Fully compatible with standard instrumentation, the approach enables high‐fidelity spin control under typical sample conditions.
Gediminas Usevičius, Mantas Šimėnas, Blaise L. Geoghegan, Oscar W. Kennedy, Ignas Pocius, Patrick Hogan, Ana Villanueva Ruiz de Temino, Jean‐Baptiste Verstraete, Paulina Verbaitytė, Angeliki Chatziathanasiou, G. Antilen Jacob, Mindaugas Kamarauskas, Marius Treideris, Paulius Gečys, Joseph Alexander, Vidmantas Kalendra, Jūras Banys, Maxie M. Roessler, John J.L. Morton   +18 more
wiley   +1 more source

Insights into Flavin-based Electron Bifurcation via the NADH-dependent Reduced Ferredoxin:NADP Oxidoreductase Structure*

Journal of Biological Chemistry, 2015
Background: Flavin-based electron bifurcation is a vital process in microbial energy metabolism. Results: The NfnAB complex structure determines the positions of the prosthetic groups and the substrates. Conclusion: The environment of the central FAD and
Julius K Demmer, Haiyan Huang, Shuning Wang, U. Demmer, R. Thauer, U. Ermler   +5 more
semanticscholar   +1 more source

The return of metabolism: biochemistry and physiology of glycolysis

Biological Reviews, EarlyView.
ABSTRACT Glycolysis is a fundamental metabolic pathway central to the bioenergetics and physiology of virtually all living organisms. In this comprehensive review, we explore the intricate biochemical principles and evolutionary origins of glycolytic pathways, from the classical Embden–Meyerhof–Parnas (EMP) pathway in humans to various prokaryotic and ...
Nana‐Maria Grüning, Federica Agostini, Camila Caldana, Johannes Hartl, Matthias Heinemann, Markus A. Keller, Jan Lukas Krüsemann, Costanza Lamperti, Carole L. Linster, Steffen N. Lindner, Julia Muenzner, Jens Nielsen, Zoran Nikoloski, Bettina Siebers, Jacky L. Snoep, Hezi Tenenboim, Bas Teusink, Spencer J. Williams, Mirjam M. C. Wamelink, Markus Ralser   +19 more
wiley   +1 more source

Taxonomic and functional shifts in the microbiome of severely obese, prediabetic patients: Ketogenic diet versus energy‐matched standard diet

Diabetes, Obesity and Metabolism, EarlyView.
Abstract Aims Obesity and type 2 diabetes mellitus (T2DM) are among the leading global health challenges of the 21st century. While caloric restriction remains the cornerstone of weight loss interventions, ketogenic diets (KD), characterised by low carbohydrate and high fat intake, have been shown to improve metabolic health partly by modulating the ...
June Stone, Afroditi Tripyla, Melanie C. Scalise, Maria L. Balmer, Lia Bally, Dominik M. Meinel   +5 more
wiley   +1 more source

H₂-Independent Growth of the Hydrogenotrophic Methanogen Methanococcus maripaludis

mBio, 2013
Hydrogenotrophic methanogenic Archaea require reduced ferredoxin as an anaplerotic source of electrons for methanogenesis. H2 oxidation by the hydrogenase Eha provides these electrons, consistent with an H2 requirement for growth.
Kyle C. Costa, Thomas J. Lie, Michael A. Jacobs, John A. Leigh   +3 more
doaj   +1 more source

Incomplete Wood-Ljungdahl pathway facilitates one-carbon metabolism in organohalide-respiring Dehalococcoides mccartyi. [PDF]

, 2014
The acetyl-CoA "Wood-Ljungdahl" pathway couples the folate-mediated one-carbon (C1) metabolism to either CO2 reduction or acetate oxidation via acetyl-CoA.
Alvarez-Cohen, Lisa, Bill, Markus, Brisson, Vanessa L, Conrad, Mark E, Feng, Xueyang, Men, Yujie, Tang, Yinjie J, Yi, Shan, Zhuang, Wei-Qin   +8 more
core   +1 more source

Phycocyanobilin biosynthesis in Galdieria sulphuraria requires isomerization of phycoerythrobilin synthesized by bilin reductases

The FEBS Journal, EarlyView.
The biosynthesis of bilins, tetrapyrroles essential for light harvesting and sensing, is performed by specific enzymes (FDBRs). In Galdieria sulphuraria, both phycobiliprotein types bind phycocyanobilin, despite lacking the canonical synthesizing gene PCYA. Instead, PEBA and PEBB are encoded, producing phycoerythrobilin, proposed to be later isomerized
Federica Frascogna, Nathan C. Rockwell, Jana Hartmann, Julie M. Mudler, Nicole Frankenberg‐Dinkel   +4 more
wiley   +1 more source