Results 1 to 10 of about 93,739 (204)

A PURIFICATION OF VENOM PHOSPHODIESTERASE

open access: hybridJournal of Biological Chemistry, 1952
For purposes of analysis of polynucleotides, it is desirable to have a phosphodiesterase, substantially free of 5-nucleotidase or other phosphatase activity. The presence of a phosphodiesterase in a wide variety of snake venoms was demonstrated by Gullan and Jackson (1). These venoms were found also to contain a potent 5-nucleotidase, but were free of
Robert L. Sinsheimer, James F. Koerner
openalex   +5 more sources

Dual Regulatory Role Exerted by Cyclic Dimeric GMP To Control FsnR-Mediated Bacterial Swimming

open access: yesmBio, 2022
Bacterial motility has great medical and ecological significance because of its essential role in bacterial survival and pathogenesis. Cyclic dimeric GMP (c-di-GMP), a second messenger in bacteria, is the predominant regulator of flagellar synthesis and ...
Xin Zhang   +7 more
doaj   +1 more source

YciR, a Specific 3′-Phosphodiesterase, Plays a Role in the Pathogenesis of Uropathogenic Escherichia coli CFT073

open access: yesFrontiers in Microbiology, 2022
Urinary tract infections (UTIs), with the characteristics of recurrence and resistance to antibiotics due to misuse, remain a common health and economic issue for patients.
Si Zhang   +10 more
doaj   +1 more source

Cyclic-di-AMP Phosphodiesterase Elicits Protective Immune Responses Against Mycobacterium tuberculosis H37Ra Infection in Mice

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
Many antigens from Mycobacterium tuberculosis (M. tuberculosis) have been demonstrated as strong immunogens and proved to have application potential as vaccine candidate antigens. Cyclic di-AMP (c-di-AMP) as a bacterial second messenger regulates various
Yanzhi Lu   +11 more
doaj   +1 more source

Phosphodiesterase inhibitors [PDF]

open access: yesBritish Journal of Pharmacology, 2006
Phosphodiesterases are a diverse family of enzymes that hydrolyse cyclic nucleotides and thus play a key role in regulating intracellular levels of the second messengers cAMP and cGMP, and hence cell function. Theophylline and papaverine have historically been used therapeutically and are known to be weak inhibitors of PDE, but to what extent this ...
Boswell-Smith, V, Spina, D, Page, C P
openaire   +4 more sources

Phosphodiesterases in neurodegenerative disorders [PDF]

open access: yesIUBMB Life, 2012
AbstractCyclic nucleotide phosphodiesterases (PDEs) are responsible for the breakdown of cyclic nucleotides, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). As such, they are crucial regulators of levels of cyclic nucleotide‐mediated signaling.
Jos Prickaerts, Eva Bollen
openaire   +3 more sources

Influence of metabolism modifiers of cyclic nucleotides on contractility of right ventricle of rat heart with intact and removed endocardial endothelium [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2010
Introduction. Endocardial endothelium, a natural biological barrier between circulating blood in heart ventricle and cells, creates a complex yet finely tuned balance of interactions with the immediate environment. Objective. We investigated the roles
Savić Slađana   +5 more
doaj   +1 more source

Targeting Phosphodiesterases—Towards a Tailor-Made Approach in Multiple Sclerosis Treatment

open access: yesFrontiers in Immunology, 2019
Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system (CNS) characterized by heterogeneous clinical symptoms including gradual muscle weakness, fatigue, and cognitive impairment.
Melissa Schepers   +15 more
doaj   +1 more source

Differential regulation of c-di-GMP metabolic enzymes by environmental signals modulates biofilm formation in Yersinia pestis

open access: yesFrontiers in Microbiology, 2016
Cyclic diguanylate (c-di-GMP) is essential for Yersinia pestis biofilm formation, which is important for flea-borne blockage-dependent plague transmission.
Gai-Xian eRen   +4 more
doaj   +1 more source

Ribonuclease L mediates the cell-lethal phenotype of double-stranded RNA editing enzyme ADAR1 deficiency in a human cell line

open access: yeseLife, 2017
ADAR1 isoforms are adenosine deaminases that edit and destabilize double-stranded RNA reducing its immunostimulatory activities. Mutation of ADAR1 leads to a severe neurodevelopmental and inflammatory disease of children, Aicardi-Goutiéres syndrome.
Yize Li   +9 more
doaj   +1 more source

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