Results 101 to 110 of about 83,013 (204)

Terrestrial iron sulfide minerals induce distinct regulation of intracellular redox homeostasis and iron assimilation

open access: yesEcotoxicology and Environmental Safety
Repeated exposure to airborne terrestrial natural minerals may cause pneumoconiosis and lung cancer, among which iron sulfide is identified as an aggravating factor.
Qinying Lyu   +5 more
doaj   +1 more source

Metallicity Gradients in the Intracluster Gas of Abell 496

open access: yes, 1999
Analysis of spatially resolved ASCA spectra of the intracluster gas in Abell 496 confirms there are mild metal abundance enhancements near the center, as previously found by White et al.
Arnaud M.   +15 more
core   +3 more sources

XMM-Newton Spectroscopy of the Cluster of Galaxies 2A 0335+096

open access: yes, 2005
We present here the results of a deep (130 ks) XMM-Newton observation of the cluster of galaxies 2A 0335+096. The deep exposure allows us to study in detail its temperature structure and its elemental abundances. We fit three different thermal models and
Allende Prieto   +62 more
core   +1 more source

Structure of a tryptophanyl-tRNA synthetase containing an iron–sulfur cluster [PDF]

open access: hybrid, 2010
Gye Won Han   +43 more
openalex   +1 more source

Paleoproterozic Icehouses and the Evolution of Oxygen Mediating Enzymes: The Case for a Late Origin of Photosystem -- II [PDF]

open access: yes, 2008
Two major geological problems regarding the origin of oxygenic photosynthesis are: (1) identifying a source of oxygen predating biological oxygen production and capable of driving the evolution of oxygen tolerance, and (2) determining when oxygenic ...
Kirschvink, Joseph L., Kopp, Robert E.
core  

A multidisciplinary analysis of the as-isolated Escherichia coli SufBC 2 D complex reveals the presence of two new iron-sulfur clusters [PDF]

open access: gold, 2022
Giulia Veronesi   +9 more
openalex   +1 more source

E. coli MnmA Is an Fe-S Cluster-Independent 2-Thiouridylase

open access: yesInorganics
All kingdoms of life have more than 150 different forms of RNA alterations, with tRNA accounting for around 80% of them. These chemical alterations include, among others, methylation, sulfuration, hydroxylation, and acetylation.
Moses Ogunkola   +4 more
doaj   +1 more source

Evidence for Low-valent Electronic Configurations in Iron–Sulfur Clusters [PDF]

open access: gold, 2022
Alexandra C. Brown   +2 more
openalex   +1 more source

Home - About - Disclaimer - Privacy