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Showing 25 to 36 of 144 entries
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In silico comparative analysis of KRAS mutations at codons 12 and 13: Structural modifications of P-Loop, switch I&II regions preventing GTP hydrolysis.

Computers in biology and medicine

Gerber M, Goel S, Maitra R.
PMID: 34920161
Comput Biol Med. 2021 Dec 09;141:105110. doi: 10.1016/j.compbiomed.2021.105110. Epub 2021 Dec 09.

KRAS mutation is prevalent in around 30% of all cancers and is an undruggable molecular target. Of seven mutations at codon 12 and 13, only one, the G12C mutant is finally proven to be druggable, as evidenced by the...

Conserved heterodimeric GTPase Rbg1/Tma46 promotes efficient translation in eukaryotic cells.

Cell reports

Zeng F, Li X, Pires-Alves M, Chen X, Hawk CW, Jin H.
PMID: 34706231
Cell Rep. 2021 Oct 26;37(4):109877. doi: 10.1016/j.celrep.2021.109877.

Conserved developmentally regulated guanosine triphosphate (GTP)-binding proteins (Drgs) and their binding partner Drg family regulatory proteins (Dfrps) are important for embryonic development, cellular growth control, differentiation, and proliferation. Here, we report that the yeast Drg1/Dfrp1 ortholog Rbg1/Tma46 facilitates translational...

Biophysical and structural investigation of the regulation of human GTP cyclohydrolase I by its regulatory protein GFRP.

Journal of structural biology

Ebenhoch R, Bauer M, Reinert D, Kersting A, Huber S, Schmid A, Hinz I, Feiler M, Müller K, Nar H.
PMID: 33387654
J Struct Biol. 2021 Mar;213(1):107691. doi: 10.1016/j.jsb.2020.107691. Epub 2020 Dec 31.

GTP Cyclohydrolase I (GCH1) catalyses the conversion of guanosine triphosphate (GTP) to dihydroneopterin triphosphate (H2NTP), the initiating step in the biosynthesis of tetrahydrobiopterin (BH4). BH4 functions as co-factor in neurotransmitter biosynthesis. BH4 homeostasis is a promising target to treat...

Inherited Platelet Function Disorder From Novel Mutations in RAS Guanyl-Releasing Protein-2 Confirmed by Sanger Sequencing.

Cureus

Al-Hebshi A.
PMID: 33391941
Cureus. 2020 Nov 25;12(11):e11708. doi: 10.7759/cureus.11708.

Inherited platelet disorders (IPDs) are genetically heterogeneous rare disorders due to quantitative and/or qualitative abnormalities of the platelet. IPDs are often predisposed to significant medical complications. RAS guanyl-releasing protein-2 (RASGRP2) was recently identified as a gene affected in patients...

Timing of Novel Drug 1A-116 to Circadian Rhythms Improves Therapeutic Effects against Glioblastoma.

Pharmaceutics

Trebucq LL, Cardama GA, Lorenzano Menna P, Golombek DA, Chiesa JJ, Marpegan L.
PMID: 34371781
Pharmaceutics. 2021 Jul 16;13(7). doi: 10.3390/pharmaceutics13071091.

The Ras homologous family of small guanosine triphosphate-binding enzymes (GTPases) is critical for cell migration and proliferation. The novel drug 1A-116 blocks the interaction site of the Ras-related C3 botulinum toxin substrate 1 (RAC1) GTPase with some of its...

Interferon-gamma - Inducible Inflammation: Contribution to Aging and Aging-Associated Psychiatric Disorders.

Aging and disease

Oxenkrug G.
PMID: 22396896
Aging Dis. 2011 Dec;2(6):474-86. Epub 2011 Dec 02.

Aging is associated with the chronic, low grade, Th-1 type inflammation. The key Th-1 type, pro-inflammatory cytokine, interferon-gamma (IFNG), transcriptionally induces the rate-limiting enzyme of tryptophan (TRY) - kynurenine (KYN) pathway, indoleamine 2,3- dioxygenase (IDO). Activation of IDO shunts...

Chemical capping improves template switching and enhances sequencing of small RNAs.

Nucleic acids research

Wulf MG, Maguire S, Dai N, Blondel A, Posfai D, Krishnan K, Sun Z, Guan S, Corrêa IR.
PMID: 34581823
Nucleic Acids Res. 2022 Jan 11;50(1):e2. doi: 10.1093/nar/gkab861.

Template-switching reverse transcription is widely used in RNA sequencing for low-input and low-quality samples, including RNA from single cells or formalin-fixed paraffin-embedded (FFPE) tissues. Previously, we identified the native eukaryotic mRNA 5' cap as a key structural element for...

Multifactorial Regulation of G Protein-Coupled Receptor Endocytosis.

Biomolecules & therapeutics

Zhang X, Kim KM.
PMID: 28035080
Biomol Ther (Seoul). 2017 Jan 01;25(1):26-43. doi: 10.4062/biomolther.2016.186.

Endocytosis is a process by which cells absorb extracellular materials via the inward budding of vesicles formed from the plasma membrane. Receptor-mediated endocytosis is a highly selective process where receptors with specific binding sites for extracellular molecules internalize via...

Kalirin as a Novel Treatment Target for Cognitive Dysfunction in Schizophrenia.

CNS drugs

Mould AW, Al-Juffali N, von Delft A, Brennan PE, Tunbridge EM.
PMID: 34928485
CNS Drugs. 2022 Jan;36(1):1-16. doi: 10.1007/s40263-021-00884-z. Epub 2021 Dec 20.

The cognitive dysfunction experienced by patients with schizophrenia represents a major unmet clinical need. We believe that enhancing synaptic function and plasticity by targeting kalirin may provide a novel means to remediate these symptoms. Karilin (a protein encoded by...

Chemical capping improves template switching and enhances sequencing of small RNAs.

Nucleic acids research

Wulf MG, Maguire S, Dai N, Blondel A, Posfai D, Krishnan K, Sun Z, Guan S, Corrêa IR.
PMID: 34581823
Nucleic Acids Res. 2021 Sep 28; doi: 10.1093/nar/gkab861. Epub 2021 Sep 28.

Template-switching reverse transcription is widely used in RNA sequencing for low-input and low-quality samples, including RNA from single cells or formalin-fixed paraffin-embedded (FFPE) tissues. Previously, we identified the native eukaryotic mRNA 5' cap as a key structural element for...

RAPID AND SIMULTANEOUS MEASUREMENT OF ANODIC AND CATHODIC HAEMOGLOBINS AND ATP AND GTP CONCENTRATIONS IN MINUTE QUANTITIES OF FISH BLOOD.

The Journal of experimental biology

Feuerlein R, Weber R.
PMID: 9317794
J Exp Biol. 1994 Apr;189(1):273-7.

Oxygen transport to vertebrate tissues is dependent upon (a) the intrinsic O2-binding properties of haemoglobin (Hb) and (b) modulation by allosteric effectors, such as nucleoside triphosphates (NTP), that depress Hb O2-affinity in fish red cells. While some species, such...

The dynamic structure of Rab35 is stabilized in the presence of GTP under physiological conditions.

Biochemistry and biophysics reports

Murata T, Unno Y, Fukuda M, Utsunomiya-Tate N.
PMID: 32613087
Biochem Biophys Rep. 2020 Jun 24;23:100776. doi: 10.1016/j.bbrep.2020.100776. eCollection 2020 Sep.

Rab proteins, a family of small guanosine triphosphatases, play key roles in intracellular membrane trafficking and the regulation of various cellular processes. As a Rab isoform, Rab35 is crucial for recycling endosome trafficking, cytokinesis and neurite outgrowth. In this...

Showing 25 to 36 of 144 entries