Nucleoside diphosphate kinases catalyze the reversible transfer of the gamma phosphate of nucleoside triphosphates to nucleoside diphosphates. This minireview presents recent advances in understanding the reaction mechanism using steady-state and fast kinetic studies, X-ray crystallography, and site-directed mutagenesis. We also briefly discuss the physiological relevance of in vitro studies.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1023/a:1005532912212 | DOI Listing |
Life Sci Alliance
April 2025
https://ror.org/0040axw97 Yunnan Key Laboratory of Cell Metabolism and Diseases, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
NME7 (nucleoside diphosphate kinase 7), a lesser studied member of the non-metastatic expressed (NME) family, has been reported as a potential subunit of the γ-tubulin ring complex (γTuRC). However, its role in the cilium assembly and function remains unclear. Our research demonstrated that NME7 is located at the centrosome, including at the spindle poles during metaphase and at the basal bodies during cilium assembly.
View Article and Find Full Text PDFUnlabelled: Oncogenes hyperactive lactate production, but the mechanisms by which lactate facilitates tumor growth are unclear. Here, we demonstrate that lactate is essential for nucleotide biosynthesis in pediatric diffuse midline gliomas (DMGs). The oncogenic histone H3K27M mutation upregulates phosphoglycerate kinase 1 (PGK1) and drives lactate production from [U- C]-glucose in DMGs.
View Article and Find Full Text PDFUnlabelled: Guanosine triphosphate (GTP) is essential for macromolecular biosynthesis, and its intracellular levels are tightly regulated in bacteria. Loss of the alarmone (p)ppGpp disrupts GTP regulation in , causing cell death in the presence of exogenous guanosine and underscoring the critical importance of GTP homeostasis. To investigate the basis of guanosine toxicity, we performed a genetic selection for spontaneous mutations that suppress this effect, uncovering an unexpected link between GTP synthesis and glycolysis.
View Article and Find Full Text PDFNat Commun
January 2025
i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.
Wall teichoic acids (WTAs) from the major Gram-positive foodborne pathogen Listeria monocytogenes are peptidoglycan-associated glycopolymers decorated by monosaccharides that, while not essential for bacterial growth, are required for bacterial virulence and resistance to antimicrobials. Here we report the structure and function of a bacterial WTAs rhamnosyltransferase, RmlT, strictly required for L. monocytogenes WTAs rhamnosylation.
View Article and Find Full Text PDFJ Dev Biol
November 2024
Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Barth syndrome (BTHS) is a rare, infantile-onset, X-linked mitochondriopathy exhibiting a variable presentation of failure to thrive, growth insufficiency, skeletal myopathy, neutropenia, and heart anomalies due to mitochondrial dysfunction secondary to inherited TAFAZZIN transacetylase mutations. Although not reported in BTHS patients, male infertility is observed in several () mouse alleles and in a mutant. Herein, we examined the male infertility phenotype in a BTHS-patient-derived point-mutant knockin mouse () allele that expresses a mutant protein lacking transacetylase activity.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!