Results 41 to 50 of about 386,929 (385)

KRAS G13D sensitivity to neurofibromin-mediated GTP hydrolysis

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance The protooncogene KRAS, a GTPase, is responsible for activating the MAPK pathway. Cancer mutations at codons 12, 13, or 61 are thought to stabilize KRAS-GTP primarily by preventing GAP protein-stimulated GTP hydrolysis, thereby stabilizing ...
Dana Rabara   +6 more
semanticscholar   +1 more source

Analysis of GTP-binding potein function with a photoaffinity GTP analog.

open access: yesFolia Pharmacologica Japonica, 1995
The mechanism whereby hormones or neurotransmitters activate G proteins and their intracellular effectors can be studied in reconstituted systems using purified components. However, the regulation of receptor-G protein signaling appears to be substantially more complex in the cell and several additional components participate in this event.
S, Hatta, H, Ohshika
openaire   +3 more sources

Effect of Dietary Japanese Green Tea Powder Supplementation on Feed Utilization and Carcass Profiles in Broilers

open access: yesThe Journal of Poultry Science, 2001
Responses of broiler to dietary Japanese green tea powder (GTP) were investigated using 30 broiler chicks reared from 18 to 52 days of age. Five rations were formulated by addition of 0, 0.5, 0.75, 1.0 and 1.5% of GTP to starter and finisher diets, and ...
Abdul Hai Biswas, Masaaki Wakita
doaj   +1 more source

In vitro and in vivo analyses of co-infections with peste des petits ruminants and capripox vaccine strains

open access: yesVirology Journal, 2021
Background Peste des petits ruminants (PPR) and goat pox (GTP) are two devastating animal epidemic diseases that affect small ruminants. Vaccination is one of the most important measures to prevent and control these two severe infectious diseases ...
Dajun Zhang   +7 more
doaj   +1 more source

Effect of GTP and Ca2+ on inositol 1,4,5-trisphosphate induced Ca2+ release from permeabilized rat exocrine pancreatic acinar cells [PDF]

open access: yes, 1991
The effects of Ca2+ and GTP on the release of Ca2+ from the inositol 1,4,5-trisphosphate (IP3) sensitive Ca2+ compartment were investigated with digitonin permeabilized rat pancreatic acinar cells.
Ammann   +30 more
core   +1 more source

Blocking entry of hepatitis B and D viruses to hepatocytes as a novel immunotherapy for treating chronic infections [PDF]

open access: yes, 2021
Background. Chronic hepatitis B and D virus (HBV/HDV) infections can cause cancer. Current HBV therapy using nucleoside analogues (NAs) is life-long and reduces but does not eliminate the risk of cancer.
Ahlén, G   +13 more
core   +1 more source

GTP cyclohydrolase I utilizes metal‐free GTP as its substrate [PDF]

open access: yesEuropean Journal of Biochemistry, 2003
GTP cyclohydrolase I (GCH) is the rate‐limiting enzyme for the synthesis of tetrahydrobiopterin and its activity is important in the regulation of monoamine neurotransmitters such as dopamine, norepinephrine and serotonin. We have studied the action of divalent cations on the enzyme activity of purified recombinant human GCH expressed in Escherichia ...
T. Suzuki, H. Kurita, H. Ichinose
openaire   +2 more sources

Severing enzymes amplify microtubule arrays through lattice GTP-tubulin incorporation

open access: yesScience, 2018
Severing to build microtubules Microtubules are essential intracellular polymers, built from tubulin subunits, that establish cell shape, move organelles, and segregate chromosomes during cell division. Vemu et al.
Annapurna Vemu   +6 more
semanticscholar   +1 more source

Mutations in human dynamin block an intermediate stage in coated vesicle formation [PDF]

open access: yes, 1993
The role of human dynamin in receptor-mediated endocytosis was investigated by transient expression of GTP-binding domain mutants in mammalian cells. Using assays which detect intermediates in coated vesicle formation, the dynamin mutants were found to ...
Damke, Hanna   +5 more
core   +3 more sources

The speed of GTP hydrolysis determines GTP cap size and controls microtubule stability

open access: yesbioRxiv, 2019
Microtubules are bistable cytoskeletal polymers whose function depends on their property to switch between states of growth and shrinkage 1. Growing microtubules are thought to be stabilized by a GTP cap at their ends 2-5. The nature of this cap, however,
Johanna Roostalu   +5 more
semanticscholar   +1 more source

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