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Metalloproteins in the Biology of Heterocysts [PDF]
Cyanobacteria are photoautotrophic microorganisms present in almost all ecologically niches on Earth. They exist as single-cell or filamentous forms and the latter often contain specialized cells for N2 fixation known as heterocysts.
Enrico Schleiff +2 more
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Machine Learning Approaches for Metalloproteins
Metalloproteins are a family of proteins characterized by metal ion binding, whereby the presence of these ions confers key catalytic and ligand-binding properties.
Ruobing Wang, Ruijie D Teo, Yue Yu
exaly +3 more sources
Recent advances and future challenges in predictive modeling of metalloproteins by artificial intelligence [PDF]
: 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]
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
Rational Design of Artificial Metalloproteins and Metalloenzymes with Metal Clusters
Metalloproteins and metalloenzymes play important roles in biological systems by using the limited metal ions, complexes, and clusters that are associated with the protein matrix.
Ying-Wu Lin, Lin Ying-Wu
exaly +3 more sources
Structure and Catalytic Mechanism of Radical SAM Methylases
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
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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
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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
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Oxygen-Sensitive Metalloprotein Structure Determination by Cryo-Electron Microscopy
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
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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

