Results 31 to 40 of about 52,163 (306)

SARS-CoV-2 Nsp14 mediates the effects of viral infection on the host cell transcriptome

open access: yeseLife, 2022
Viral infection involves complex set of events orchestrated by multiple viral proteins. To identify functions of SARS-CoV-2 proteins, we performed transcriptomic analyses of cells expressing individual viral proteins.
Michela Zaffagni   +5 more
doaj   +1 more source

Mitochondrial metabolism of guanine nucleotides possible role of guanosine

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

Post-translational regulation of retinal IMPDH1 in vivo to adjust GTP synthesis to illumination conditions

open access: yeseLife, 2020
We report the in vivo regulation of Inosine-5´-monophosphate dehydrogenase 1 (IMPDH1) in the retina. IMPDH1 catalyzes the rate-limiting step in the de novo synthesis of guanine nucleotides, impacting the cellular pools of GMP, GDP and GTP.
Anna Plana-Bonamaisó   +13 more
doaj   +1 more source

Nucleotide discrimination with DNA immobilized in the MspA nanopore. [PDF]

open access: yesPLoS ONE, 2011
Nanopore sequencing has the potential to become a fast and low-cost DNA sequencing platform. An ionic current passing through a small pore would directly map the sequence of single stranded DNA (ssDNA) driven through the constriction.
Elizabeth A Manrao   +4 more
doaj   +1 more source

Subcellular compartmentation of guanine nucleotides and functional relationships between the adenine and guanine nucleotide systems in isolated hepatocytes [PDF]

open access: yesFEBS Letters, 1979
The subcellular compartmentation of adenine nucleotides between the mitochondria and the cytosol has been clearly demonstrated by the use of different cell fractionation techniques [ 1,2]. However, data concerning the subcellular distribution of guanine nucleotides are not available.
Kleineke, Jochen   +2 more
openaire   +2 more sources

LRRK1 and LRRK2 bind guanine nucleotides.

open access: yes, 2012
(A) Nucleotide competition assays with purified 3xFLAG-LRRK1/2 bound to M2-Flag affinity resin and incubated with a fixed concentration of GTP-α-P33 (10 nM) in the presence of 100 µM of cold nucleotides.
Luigi Bubacco (83582)   +13 more
core   +1 more source

Chasing Particularities of Guanine- and Cytosine-Rich DNA Strands

open access: yesMolecules, 2020
By substitution of natural nucleotides by their abasic analogs (i.e., 1′,2′-dideoxyribose phosphate residue) at critically chosen positions within 27-bp DNA constructs originating from the first intron of N-myc gene, we hindered hybridization
Marko Trajkovski, Janez Plavec
doaj   +1 more source

Intermediates in the Guanine Nucleotide Exchange Reaction of Rab8 Protein Catalyzed by Guanine Nucleotide Exchange Factors Rabin8 and GRAB [PDF]

open access: yesJournal of Biological Chemistry, 2013
Small G-proteins of the Ras superfamily control the temporal and spatial coordination of intracellular signaling networks by acting as molecular on/off switches. Guanine nucleotide exchange factors (GEFs) regulate the activation of these G-proteins through catalytic replacement of GDP by GTP.
Guo, Zhong   +3 more
openaire   +6 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Trapp Stimulates Guanine Nucleotide Exchange on Ypt1p [PDF]

open access: yesThe Journal of Cell Biology, 2000
TRAPP, a novel complex that resides on early Golgi, mediates the targeting of ER-to-Golgi vesicles to the Golgi apparatus. Previous studies have shown that YPT1, which encodes the small GTP-binding protein that regulates membrane traffic at this stage of the secretory pathway, interacts genetically with BET3 and BET5.
W, Wang, M, Sacher, S, Ferro-Novick
openaire   +2 more sources

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