The gateway to guanine nucleotides: Allosteric regulation of IMP dehydrogenases. [PDF]
Protein 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
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Transglutaminase 5 is regulated by guanine–adenine nucleotides [PDF]
Biochemical 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
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Novel riboswitch ligand analogs as selective inhibitors of guanine-related metabolic pathways. [PDF]
PLoS 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
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Structural Basis of SARS-CoV-2 Polymerase Inhibition by Favipiravir
The 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
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Frontiers 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
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Guanosine nucleotides regulate B2 kinin receptor affinity of agonists but not of antagonists: Discussion of a model proposing receptor precoupling to G protein [PDF]
, 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
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Essential role of GTP in epinephrine stimulation of human fat cell adenylate cyclase
Journal 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
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Research Advances in Purine Phosphoribosyltransferases of Protozoan Parasites
Guangdong 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
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Guanine Nucleotide Exchange Assay Using Fluorescent MANT-GDP
Bio-Protocol, 2018 GTPases are molecular switches that cycle between the inactive GDP-bound state and the active GTP-bound state. GTPases exchange nucleotides either by its intrinsic nucleotide exchange or by interaction with guanine nucleotide exchange factors (GEFs ...
Tomoharu Kanie, Peter Jackson
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Regulation of phosphoinositide breakdown by guanine nucleotides
Life Sciences, 1986 Phosphoinositide hydrolysis is coupled to receptor systems involved in the elevation of cytosolic Ca2+ and activation of protein kinase C. In cell-free systems, guanine nucleotides are required to transduce the effects of receptor activation to phosphoinositide breakdown.
I, Litosch, J N, Fain
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