Results 1 to 10 of about 20,801 (206)

Recent advances and future challenges in predictive modeling of metalloproteins by artificial intelligence [PDF]

open access: yesMolecules and Cells
: Metal coordination is essential for structural/catalytic functions of metalloproteins that mediate a wide range of biological processes in living organisms. Advances in bioinformatics have significantly enhanced our understanding of metal-binding sites
Soohyeong Kim   +4 more
doaj   +2 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

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

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

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

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

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

Machine Learning Approaches for Metalloproteins

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   +1 more source

Effects of Ionic Liquids on Metalloproteins

open access: yesMolecules, 2021
In the past decade, innovative protein therapies and bio-similar industries have grown rapidly. Additionally, ionic liquids (ILs) have been an area of great interest and rapid development in industrial processes over a similar timeline.
Aashka Y. Patel   +5 more
doaj   +1 more source

Bioinformatics of Metalloproteins and Metalloproteomes

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   +1 more source

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