Results 91 to 100 of about 59,930 (249)

Cytochromes and iron sulfur proteins in sulfur metabolism of phototrophic bacteria [PDF]

open access: yes
Dissimilatory sulfur metabolism in phototrophic sulfur bacteria provides the bacteria with electrons for photosynthetic electron transport chain and, with energy.
Fischer, U.
core   +1 more source

Remnants of an ancient metabolism without phosphate [PDF]

open access: yes, 2017
Phosphate is essential for all living systems, serving as a building block of genetic and metabolic machinery. However, it is unclear how phosphate could have assumed these central roles on primordial Earth, given its poor geochemical accessibility.
Goldford, Joshua E.   +3 more
core   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

The iron-sulfur cluster assembly machineries in plants: current knowledge and open questions

open access: yesFrontiers in Plant Science, 2013
Many metabolic pathways and cellular processes occurring in most sub-cellular compartments depend on the functioning of iron-sulfur (Fe-S) proteins, whose cofactors are assembled through dedicated protein machineries.
Jérémy eCouturier   +4 more
doaj   +1 more source

Human Frataxin Folds Via an Intermediate State. Role of the C-Terminal Region [PDF]

open access: yes, 2016
The aim of this study is to investigate the folding reaction of human frataxin, whose deficiency causes the neurodegenerative disease Friedreich’s Ataxia (FRDA).
Faraj, Santiago Enrique   +3 more
core   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

open access: yesAdvanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu   +9 more
wiley   +1 more source

The magnetosome model: insights into the mechanisms of bacterial biomineralization. [PDF]

open access: yes, 2013
Though the most ready example of biomineralization is the calcium phosphate of vertebrate bones and teeth, many bacteria are capable of creating biominerals inside their cells.
Komeili, Arash, Rahn-Lee, Lilah
core   +1 more source

Highly Active Cu14 Cluster Precisely Activates Autophagy Inhibitor to Amplify Cuproptosis Immunotherapy

open access: yesAdvanced Science, EarlyView.
An atomically precise Cu14 cluster‐mediated bond scission reaction pioneers the amplification of the antitumor immune response via synergetic cuproptosis‐associated immunogenic cell death induction and in situ autophagy blockade. ABSTRACT Transition metal‐mediated cleavage mechanisms have emerged as an effective means to mitigate the off‐target ...
Qiu‐Xu Zang   +8 more
wiley   +1 more source

Exome sequencing identifies NFS1 deficiency in a novel Fe‐S cluster disease, infantile mitochondrial complex II/III deficiency

open access: yesMolecular Genetics & Genomic Medicine, 2014
Iron‐sulfur (Fe‐S) clusters are a class of highly conserved and ubiquitous prosthetic groups with unique chemical properties that allow the proteins that contain them, Fe‐S proteins, to assist in various key biochemical pathways.
Sali M. K. Farhan   +9 more
doaj   +1 more source

Crystallization of Adenylylsulfate Reductase from Desulfovibrio gigas: A Strategy Based on Controlled Protein Oligomerization [PDF]

open access: yes, 2011
Adenylylsulfate reductase (adenosine 5′-phosphosulfate reductase, APS reductase or APSR, E.C.1.8.99.2) catalyzes the conversion of APS to sulfite in dissimilatory sulfate reduction. APSR was isolated and purified directly from massive anaerobically grown
Chan, Sunney I.   +9 more
core   +1 more source

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