Results 91 to 100 of about 3,508,793 (303)

High-affinity nitrate/nitrite transporters NrtA and NrtB of Aspergillus nidulans exhibit high specificity and different inhibitor sensitivity [PDF]

open access: yes, 2015
The NrtA and NrtB nitrate transporters are paralogous members of the major facilitator superfamily in Aspergillus nidulans. The availability of loss-of-function mutations allowed individual investigation of the specificity and inhibitor sensitivity of ...
Karabika, Eugenia   +5 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

REDUCTION OF NITRATE BY STREPTOCOCCI [PDF]

open access: yesJournal of Bacteriology, 1962
C W, LANGSTON, P P, WILLIAMS
openaire   +2 more sources

Tidally driven outwelling of dissolved carbon and nitrate from the largest mangroves of China

open access: yesFrontiers in Marine Science
The Zhanjiang Mangrove National Nature Reserve (ZMNNR) is the largest mangrove in China. However, fluxes of lateral exports of dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and nitrate from the ZMNNR remain unknown, hindering us from ...
Yifei Xu, Zhaohui Zhang
doaj   +1 more source

Therapeutic uses of inorganic nitrite and nitrate - from the past to the future

open access: yes, 2008
Potential carcinogenic effects, blue baby syndrome, and occasional intoxications caused by nitrite, as well as the suspected health risks related to fertilizer overuse, contributed to the negative image that inorganic nitrite and nitrate have had for ...
Feelisch, Martin, Butler, Anthony R.
core   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

Characteristics and Potential Activity of Aerobic Denitrifying Bacteria from Fish Farming Ponds

open access: yesBerkala Sainstek
The presence of inorganic nitrogen in the aquaculture environment is inseparable from the nitrogen cycle. The nitrogen cycle always involves microbiological processes, including the activity of microorganisms. Denitrification is one of the main processes
Rizal Khoirun Alfisah   +3 more
doaj   +1 more source

Nitrate elimination by denitrification in hardwood forest soils of the Upper Rhine floodplain – correlation with redox potential and organic matter [PDF]

open access: yes, 2002
Denitrification in floodplains is a major issue for river- and groundwater quality. In the Upper Rhine valley, floodplain forests are about to be restored to serve as flood retention areas (polders).
Trémolières, Michèle   +2 more
core   +1 more source

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

open access: yesFEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima   +8 more
wiley   +1 more source

TRPML1 agonist ML‐SA5 attenuates pulmonary fibroblast activation by suppressing mTOR and restoring autophagic flux

open access: yesFEBS Open Bio, EarlyView.
TGF‐β1 stimulation downregulates lysosomal channel TRPML1 in pulmonary fibroblasts. The TRPML1 agonist ML‐SA5 suppressed fibroblast‐to‐myofibroblast activation and collagen production. Mechanistically, ML‐SA5 inhibited mTOR phosphorylation, restored autophagic flux, and its effects were enhanced by rapamycin (mTOR inhibitor) and reversed by MHY1485 ...
Jiatong Yao   +10 more
wiley   +1 more source

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