Results 111 to 120 of about 251,937 (291)

The radical SAM enzyme NirJ cleaves off two propionate side chains with the release of acrylate during heme d1 biosynthesis

The FEBS Journal, EarlyView.
The radical SAM enzyme NirJ is responsible for the removal of two propionate side chains from its substrate didecarboxy‐siroheme during heme d1 biosynthesis. The cleavage products of the NirJ reaction were not known so far. In this study, it is shown that acrylate is formed as the reaction byproduct and that the resulting tetrapyrrole product carries ...
Heike Meyer, Maren H. Hoock, Kai Zwara, Sören Jahn, Volker Schünemann, Gunhild Layer   +5 more
wiley   +1 more source

Comparative Genomics of Candidatus Methylomirabilis Species and Description of Ca. Methylomirabilis Lanthanidiphila

Frontiers in Microbiology, 2018
Methane is a potent greenhouse gas, which can be converted by microorganism at the expense of oxygen, nitrate, nitrite, metal-oxides or sulfate. The bacterium ‘Candidatus Methylomirabilis oxyfera,’ a member of the NC10 phylum, is capable of nitrite ...
Wouter Versantvoort, Simon Guerrero-Cruz, Daan R. Speth, Jeroen Frank, Jeroen Frank, Lavinia Gambelli, Geert Cremers, Theo van Alen, Mike S. M. Jetten, Mike S. M. Jetten, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp, Joachim Reimann   +13 more
doaj   +1 more source

A Nexafs Study of Nitric Oxide Layers Adsorbed from a nitrite Solution onto a Pt(111) Surface [PDF]

arXiv, 2008
NO molecules adsorbed on a Pt(111) surface from dipping in an acidic nitrite solution are studied by near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), low energy electron diffraction (LEED) and scanning tunnelling microscopy (STM) techniques.
arxiv  

Identification of CO‐binding modes in the CuB site of bovine cytochrome c oxidase by spatial mapping of binding energy

The FEBS Journal, EarlyView.
Quantum simulations of the catalytic center (CuB) of cytochrome c oxidase, driving the electron transport system, revealed a crucial role of Val243 in modulation of ligand binding. Val243‐driven interaction facilitates hybridization between CO and Fe orbitals, thus highlighting Val243's impact on electronic structure and ligand dynamics.
Jiyoung Kang, Toru Matsuoka, Masaru Tateno   +2 more
wiley   +1 more source

Redox Reactivity of Nonsymbiotic Phytoglobins towards Nitrite

Molecules
Nonsymbiotic phytoglobins (nsHbs) are a diverse superfamily of hemoproteins grouped into three different classes (1, 2, and 3) based on their sequences.
Cezara Zagrean-Tuza, Galaba Pato, Grigore Damian, Radu Silaghi-Dumitrescu, Augustin C. Mot   +4 more
doaj   +1 more source

Implications for soluble iron accumulation, oxidative stress, and glial glutamate release in motor neuron death associated with sporadic amyotrophic lateral sclerosis

Neuropathology, EarlyView.
Oxidative stress in sporadic amyotrophic lateral sclerosis (ALS) has been evidenced by accumulation of oxidatively modified products of nucleic acids, lipids, sugars, and proteins in the motor neuron system of brains and spinal cords obtained at autopsy from the patients.
Noriyuki Shibata, Ikuko Kataoka, Yukinori Okamura, Kumiko Murakami, Yoichiro Kato, Tomoko Yamamoto, Kenta Masui   +6 more
wiley   +1 more source

The di-flavoenzyme reductase directly activates oxygen for the metabolism of diverse drug molecules by liver microsomal Cytochrome P450s [PDF]

arXiv, 2006
This submission has been withdrawn by arXiv administration due to complaints of misuse of institutional affiliation.
arxiv  

Role of distal arginine residue in the mechanism of heme nitrite reductases. [PDF]

Chem Sci, 2023
Sarkar A, Bhakta S, Chattopadhyay S, Dey A.   +3 more
europepmc   +1 more source

Strong scale‐dependent relationships between fine‐root function and soil properties uncovered with spatially coupled sampling

New Phytologist, EarlyView.
Summary Substantial fine‐root trait variation is found at fine spatial scales but rarely linked to edaphic variation. We assessed the spatial scales of variation in fine‐root traits and adjacent soils using a spatially coupled, nested sampling scheme along a fertility gradient in a seasonally dry tropical forest tree, Handroanthus ochraceus.
Caroline Dallstream, Lola Milder, Jennifer S. Powers, Fiona M. Soper   +3 more
wiley   +1 more source

Single crystal spectroscopy and multiple structures from one crystal (MSOX) define catalysis in copper nitrite reductases. [PDF]

Proc Natl Acad Sci U S A, 2022
Rose SL, Baba S, Okumura H, Antonyuk SV, Sasaki D, Hedison TM, Shanmugam M, Heyes DJ, Scrutton NS, Kumasaka T, Tosha T, Eady RR, Yamamoto M, Hasnain SS.   +13 more
europepmc   +1 more source