Results 11 to 20 of about 150,931 (301)

The gateway to guanine nucleotides: Allosteric regulation of IMP dehydrogenases. [PDF]

open access: yesProtein Sci, 2022
Inosine 5′‐monophosphate dehydrogenase (IMPDH) is an evolutionarily conserved enzyme that mediates the first committed step in de novo guanine nucleotide biosynthetic pathway. It is an essential enzyme in purine nucleotide biosynthesis that modulates the
Buey RM   +3 more
europepmc   +2 more sources

Towards inferring nanopore sequencing ionic currents from nucleotide chemical structures

open access: yesNature Communications, 2021
Nanopore sequencing allows users to identify nucleotide sequence from ionic currents. Here, the authors use deep learning to facilitate the de novo identification of modified nucleotides, particularly methylated cytosine and guanine, from the measured ...
Hongxu Ding   +4 more
doaj   +1 more source

Transglutaminase 5 is regulated by guanine–adenine nucleotides [PDF]

open access: yesBiochemical Journal, 2004
Transglutaminases (TGases) are Ca2+-dependent enzymes capable of catalysing transamidation of glutamine residues to form intermolecular isopeptide bonds. Nine distinct TGases have been described in mammals, and two of them (types 2 and 3) are regulated by GTP/ATP. TGase2 hydrolyses GTP and is therefore a bifunctional enzyme.
CANDI, ELEONORA   +10 more
openaire   +4 more sources

Novel riboswitch ligand analogs as selective inhibitors of guanine-related metabolic pathways. [PDF]

open access: yesPLoS Pathogens, 2010
Riboswitches are regulatory elements modulating gene expression in response to specific metabolite binding. It has been recently reported that riboswitch agonists may exhibit antimicrobial properties by binding to the riboswitch domain.
Jérôme Mulhbacher   +5 more
doaj   +1 more source

Structural Basis of SARS-CoV-2 Polymerase Inhibition by Favipiravir

open access: yesThe Innovation, 2021
Summary: The outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has developed into an unprecedented global pandemic. Nucleoside analogs, such as Remdesivir and Favipiravir, can serve as the first-line broad-spectrum antiviral drugs ...
Qi Peng   +7 more
doaj   +1 more source

Identification of discriminant features from stationary pattern of nucleotide bases and their application to essential gene classification

open access: yesFrontiers in Genetics, 2023
Introduction: Essential genes are essential for the survival of various species. These genes are a family linked to critical cellular activities for species survival.
Ranjeet Kumar Rout   +7 more
doaj   +1 more source

Guanosine nucleotides regulate B2 kinin receptor affinity of agonists but not of antagonists: Discussion of a model proposing receptor precoupling to G protein [PDF]

open access: yes, 2000
The effect of nucleotides on binding of the B2 kinin (BK) receptor agonist {[}H-3]BK and the antagonist {[}H-3]NPC17731 to particulate fractions of human foreskin fibroblasts was studied.
Er Faussner   +3 more
core   +1 more source

Essential role of GTP in epinephrine stimulation of human fat cell adenylate cyclase

open access: yesJournal of Lipid Research, 1981
The activity of epinephrine-sensitive adenylate cyclase of human fat cell ghosts is markedly enhanced by the GTP analog 5'-guanylyl-imidodiphosphate (GMP-P(NH)P), but a similar effect of GTP itself has not been heretofore demonstrable.
M S Katz   +3 more
doaj   +1 more source

Research Advances in Purine Phosphoribosyltransferases of Protozoan Parasites

open access: yesGuangdong nongye kexue, 2023
Parasitic protozoa are single-celled organisms that have adapted to live in cells of humans and animals. The protozoan parasites include Leishmania spp., Trypanosoma spp., Plasmodium spp., Toxoplasma gondii, Cryptosporidium spp., and Eimeria spp., which ...
Zhihui YU   +7 more
doaj   +1 more source

Mitochondrial metabolism of guanine nucleotides possible role of guanosine [PDF]

open access: yes, 1989
The catabolism of intramitochondrial guanine nucleotides was examined. During 30 min incubation of rat liver mitochondria at 37°C in the presence of oligomycin and carboxyatractyloside, guanine and xanthine were formed and appeared in the medium.
Tikhonov, Yuri V.   +13 more
core   +1 more source

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