Results 1 to 10 of about 22,558 (250)

Bioinformatics of Metalloproteins and Metalloproteomes [PDF]

open access: yesMolecules, 2020
Trace metals are inorganic elements that are required for all organisms in very low quantities. They serve as cofactors and activators of metalloproteins involved in a variety of key cellular processes.
Yan Zhang, Junge Zheng
doaj   +3 more sources

Changing paradigms for the micronutrient zinc, a known protein cofactor, as a signal relaying also cellular redox state [PDF]

open access: yesQuantitative Plant Biology
The micronutrient zinc (Zn) is often poorly available but toxic when present in excess, so a tightly controlled Zn homoeostasis network operates in all organisms. This review summarizes our present understanding of plant Zn homoeostasis.
Ute Krämer
doaj   +2 more sources

Machine Learning Approaches for Metalloproteins [PDF]

open access: yesMolecules, 2022
Metalloproteins are a family of proteins characterized by metal ion binding, whereby the presence of these ions confers key catalytic and ligand-binding properties.
Yue Yu, Ruobing Wang, Ruijie D. Teo
doaj   +3 more sources

Structure and Catalytic Mechanism of Radical SAM Methylases

open access: yesLife, 2022
Methyl transfer is essential in myriad biological pathways found across all domains of life. Unlike conventional methyltransferases that catalyze this reaction through nucleophilic substitution, many members of the radical S-adenosyl-L-methionine (SAM ...
Tu-Quynh Nguyen, Yvain Nicolet
doaj   +1 more source

Probing the Reactivity of [4Fe-4S] Fumarate and Nitrate Reduction (FNR) Regulator with O2 and NO: Increased O2 Resistance and Relative Specificity for NO of the [4Fe-4S] L28H FNR Cluster

open access: yesInorganics, 2023
The Escherichia coli fumarate and nitrate reduction (FNR) regulator acts as the cell’s master switch for the transition between anaerobic and aerobic respiration, controlling the expression of >300 genes in response to O2 availability.
Jason C. Crack   +8 more
doaj   +1 more source

L-tyrosine-bound ThiH structure reveals C–C bond break differences within radical SAM aromatic amino acid lyases

open access: yesNature Communications, 2022
ThiH is a radical SAM L-tyrosine lyase involved in the biosynthesis of the thiazole ring of vitamin B1. Here, the authors report the crystal structure of ThiH in complex with its L-tyrosine substrate, revealing an unexpected protonation state and ...
Patricia Amara   +4 more
doaj   +1 more source

Oxygen-Sensitive Metalloprotein Structure Determination by Cryo-Electron Microscopy

open access: yesBiomolecules, 2022
Metalloproteins are involved in key cell processes such as photosynthesis, respiration, and oxygen transport. However, the presence of transition metals (notably iron as a component of [Fe-S] clusters) often makes these proteins sensitive to oxygen ...
Mickaël V. Cherrier   +8 more
doaj   +1 more source

Structural determinants of DNA recognition by the NO sensor NsrR and related Rrf2-type [FeS]-transcription factors

open access: yesCommunications Biology, 2022
The crystal structure of the iron-sulfur protein NsrR from Streptomyces coelicolor bound to a gene operator fragment is reported and compared with other structures, giving insight into the structural determinants of DNA recognition by the NO sensor.
Roman Rohac   +6 more
doaj   +1 more source

Geobacter sulfurreducens’ Unique Metabolism Results in Cells with a High Iron and Lipid Content

open access: yesMicrobiology Spectrum, 2022
Geobacter sulfurreducens is a ubiquitous iron-reducing bacterium in soils, and in engineered systems, it can respire an electrode to produce measurable electric current.
Ethan Howley   +3 more
doaj   +1 more source

Molecular Details on Multiple Cofactor Containing Redox Metalloproteins Revealed by Infrared and Resonance Raman Spectroscopies

open access: yesMolecules, 2021
Vibrational spectroscopy and in particular, resonance Raman (RR) spectroscopy, can provide molecular details on metalloproteins containing multiple cofactors, which are often challenging for other spectroscopies.
Célia M. Silveira   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy