Results 31 to 40 of about 59,957 (280)

A Novel Immobilization Method of Urease in Silk Fibroin Scaffolds by Annealing at Constant Temperature and Humidity

open access: yesMacromolecular Materials and Engineering, 2023
Temperature and humidity (TH) post‐treatment is a relatively mild way to change the silk fibroin (SF) secondary structure. Here, urease is immobilized in SF scaffold (SFS) by TH post‐treatment, and the effects of annealing on the immobilized urease ...
Xiao‐Qin Qian   +5 more
doaj   +1 more source

RovM and CsrA Negatively Regulate Urease Expression in Yersinia pseudotuberculosis

open access: yesFrontiers in Microbiology, 2018
Urease acts as an important acid resistance system and virulence factor that is widespread among microorganisms. RovM is a global regulator that regulates a series of genes and pathways including acid survival systems in the enteric bacterium Yersinia ...
Qingyun Dai   +10 more
doaj   +1 more source

Explaining Urease Specificity Towards Nickel: A Re-Analysis of Its Proposed Mechanism [PDF]

open access: yes, 2020
Urease is a binuclear metalloenzyme selective towards nickel, exhibiting a remarkable rate enhancement of the catalytic reaction. The accepted mechanism for urease describes the coordination of urea to both nickel centers in an O,N bridged mode ...
Caio Bezerra de, Castro   +2 more
core   +1 more source

Embryos extract from germinated yellow soybean (Glycine max [L.] Merrill) inhibits promastigotes form of Leishmania amazonensis [PDF]

open access: yesBrazilian Journal of Biology
We investigated the effect of extracts of the germinated seeds of yellow soybean cultivar BRS 258 (Glycine max [L.] Merrill) against Leishmania amazonensis promastigotes. The yellow soybean embryos extract (YSEE) was fractionated on a Sephacryl S-100 gel
P. M. Pedrote   +10 more
doaj   +1 more source

Dynamics of urease activity in brown forest low-saturated soils of adygea under tea plants during irrigation

open access: yesНовые технологии, 2019
The article presents the results of assessing the effect of fine irrigation of tea plantations in the foothills of Adygea on the urease activity of soils.
S. V. Dobezhina
doaj   +1 more source

Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity

open access: yesНовые технологии, 2019
Brown forest acidic soils of the humid subtropical zone of Russia, on which tea is mainly cultivated, are largely exposed to agrogenic effects, which reduce their bio-productivity.
L. S. Malyukova, D. V. Strukova
doaj   +1 more source

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

open access: yesActa Agronómica, 2018
Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP).
Sandra Patricia Chaparro-Acuña   +3 more
doaj   +1 more source

Comprehensive approach to the problem of the effect of residual monomer on the immune-metabolic profile of patients with orthopedic treatment of non-removable temporary constructions

open access: yesPatologìâ, 2019
The purpose of this work was to study the clinical effectiveness of the application of an advanced method of manufacturing temporary structures and its combination with the applications of hyaluronic acid and the internal administration of quercetin ...
O. V. Voznyi   +4 more
doaj   +1 more source

Inactivation of anti-nutrients in soybeans via micronisation

open access: yesResearch in Agricultural Engineering, 2022
The soybean (Glycine max) is used as one of the main protein sources in various animal fodders. However, the presence of anti-nutrients significantly reduces the nutritional value of the bean.
Vladyslav Zubko   +5 more
doaj   +1 more source

Biosynthesis of the Urease Metallocenter [PDF]

open access: yesJournal of Biological Chemistry, 2013
Metalloenzymes often require elaborate metallocenter assembly systems to create functional active sites. The medically important dinuclear nickel enzyme urease provides an excellent model for studying metallocenter assembly. Nickel is inserted into the urease active site in a GTP-dependent process with the assistance of UreD/UreH, UreE, UreF, and UreG.
Mark A, Farrugia   +2 more
openaire   +2 more sources

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