Results 41 to 50 of about 4,313,489 (338)

The effects of nitroxyl (HNO) on soluble guanylate cyclase activity: interactions at ferrous heme and cysteine thiols [PDF]

open access: yes, 2009
It has been previously proposed that nitric oxide (NO) is the only biologically relevant nitrogen oxide capable of activating the enzyme soluble guanylate cyclase (sGC). However, recent reports implicate HNO as another possible activator of sGC.
Adrian J. Hobbs   +85 more
core   +2 more sources

Enzyme kinetics for a two-step enzymic reaction with comparable initial enzyme-substrate ratios [PDF]

open access: yes, 1988
We extend the validity of the quasi-steady state assumption for a model double intermediate enzyme-substrate reaction to include the case where the ratio of initial enzyme to substrate concentration is not necessarily small.
Frenzen, C. L., Maini, P. K.
core   +2 more sources

Formation of Enzyme-Enzyme Heteroconjugates

open access: yesAgricultural and Biological Chemistry, 1984
Enzyme-enzyme heteroconjugates of phosphoglyceromutase, enolase and pyruvate kinase, which sequentially act to produce ATP in the glycolytic pathway, were constructed with a bifunctional reagent, N-succinimidyl 3-(2-pyridyldithio)propionate. The conjugates of phospho-glyceromutase-enolase, enolase-pyruvate kinase and phosphoglyceromutase-enolase ...
Katsuzumi Okumura   +3 more
openaire   +3 more sources

Genotypes diversity of env gene of Bovine leukemia virus in Western Siberia

open access: yesBMC Genetics, 2020
Background This study describes the biodiversity and properties of Bovine leukemia virus in Western Siberia. This paper explores the effect of different genotypes of the env gene of the cattle leukemia virus on hematological parameters of infected ...
Natalia Blazhko   +7 more
doaj   +1 more source

Expression and characterization of thermotolerant lipase with broad pH profiles isolated from an Antarctic Pseudomonas sp strain AMS3 [PDF]

open access: yesPeerJ, 2016
A gene encoding a thermotolerant lipase with broad pH was isolated from an Antarctic Pseudomonas strain AMS3. The recombinant lipase AMS3 was purified by single-step purification using affinity chromatography, yielding a purification fold of ...
Wahhida Latip   +4 more
doaj   +2 more sources

Enhanced lipid extraction from unbroken microalgal cells using enzymes [PDF]

open access: yes, 2015
The marine microalga Nannochloropsis sp. was chosen as a model organism to investigate the feasibility of using cell wall-degrading enzymes to enhance the recovery of intracellular lipids.
Familiari, Giuseppe   +7 more
core   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Alternative final steps in berberine biosynthesis in Coptis japonica cell cultures [PDF]

open access: yes, 1988
In Coptis japonica cell cultures an alternative pathway has been discovered which leads from (S)-tetrahydrocolumbamine via (S)-canadine to berberine. The two enzymes involved have been partially purified.
Galneder, E.   +4 more
core   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Laccase production and differential transcription of laccase genes in Cerrena sp. in response to metal ions, aromatic compounds and nutrients

open access: yesFrontiers in Microbiology, 2016
Laccases can oxidize a wide range of aromatic compounds and are industrially valuable. Laccases often exist in gene families and may differ from each other in expression and function.
Jie eYang   +8 more
doaj   +1 more source

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