Results 1 to 10 of about 383,571 (192)

Structural transitions in the GTP cap visualized by cryo-electron microscopy of catalytically inactive microtubules

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2022
Significance Microtubules (MTs) are nonequilibrium polymers that switch between states of growth and shrinkage. This property is critical for their function and is a consequence of GTP hydrolysis in the MT. The structure of the stable GTP part of the MT (
B. LaFrance   +8 more
semanticscholar   +1 more source

Green tea polyphenol-reduced graphene oxide: derivatisation, reduction efficiency, reduction mechanism and cytotoxicity [PDF]

open access: yes, 2014
This paper reports on the derivatisation, reduction efficiency, reduction mechanism and cytotoxicity of green tea polyphenol-reduced graphene oxide (GTP-RGO).
Abdullah, M. F.   +2 more
core   +1 more source

Cryo-EM of elongating ribosome with EF-Tu•GTP elucidates tRNA proofreading

open access: yesNature, 2020
Ribosomes accurately decode mRNA by proofreading each aminoacyl-tRNA that is delivered by the elongation factor EF-Tu 1 . To understand the molecular mechanism of this proofreading step it is necessary to visualize GTP-catalysed elongation, which has ...
A. Loveland, G. Demo, A. Korostelev
semanticscholar   +1 more source

The chloroplast import receptor Toc34 functions as preprotein-regulated GTPase [PDF]

open access: yes, 2002
Toc34 is a protein of the chloroplast outer envelope membrane that acts as receptor for preproteins containing a transit sequence. The recognition of preproteins by Toc34 is regulated by GTP binding and phosphorylation.
Hörth, P.   +5 more
core   +1 more source

A guanosine 5′-triphosphate-dependent protein kinase is localized in the outer envelope membrane of pea chloroplasts [PDF]

open access: yes, 1988
A guanosine 5-triphosphate (GTP)-dependent protein kinase was detected in preparations of outer chloroplast envelope membranes of pea (Pisum sativum L.) chloroplasts.
A.M. Edelman   +34 more
core   +1 more source

GTP Cyclohydrolase 1/Tetrahydrobiopterin Counteract Ferroptosis through Lipid Remodeling

open access: yesACS Central Science, 2019
Ferroptosis is an iron-dependent form of regulated cell death linking iron, lipid, and glutathione levels to degenerative processes and tumor suppression.
Vanessa A N Kraft   +16 more
semanticscholar   +1 more source

Reciprocal regulation of PKA and rac signaling [PDF]

open access: yes, 2013
Activated G protein-coupled receptors (GPCRs) and receptor tyrosine kinases relay extracellular signals through spatial and temporal controlled kinase and GTPase entities.
A. Riml   +47 more
core   +1 more source

Mitochondria-lysosome contacts regulate mitochondrial fission via Rab7 GTP hydrolysis

open access: yesNature, 2018
Both mitochondria and lysosomes are essential for maintaining cellular homeostasis, and dysfunction of both organelles has been observed in multiple diseases.
Y. Wong, Daniel Ysselstein, D. Krainc
semanticscholar   +1 more source

Dynamics of Microtubule Growth and Catastrophe [PDF]

open access: yes, 2007
We investigate a simple model of microtubule dynamics in which a microtubule evolves by: (i) attachment of guanosine triphosphate (GTP) to its end at rate lambda, (ii) GTP converting irreversibly to guanosine diphosphate (GDP) at rate 1, and (iii ...
Antal, T.   +4 more
core   +1 more source

OPA1 disease alleles causing dominant optic atrophy have defects in cardiolipin-stimulated GTP hydrolysis and membrane tubulation [PDF]

open access: yes, 2010
The dynamin-related GTPase OPA1 is mutated in autosomal dominant optic atrophy (DOA) (Kjer type), an inherited neuropathy of the retinal ganglion cells.
Alexander   +28 more
core   +3 more sources

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