Search Results - "Hnizda, Ales"
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Multicomponent assemblies in DNA-double-strand break repair by NHEJ
Published in Current opinion in structural biology (01-04-2019)“…Non-homologous end joining (NHEJ), a process for repair of DNA-breaks that does not require a DNA-template, involves synapsis, end-processing and ligation…”
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2
Dimers of DNA-PK create a stage for DNA double-strand break repair
Published in Nature structural & molecular biology (01-01-2021)“…DNA double-strand breaks are the most dangerous type of DNA damage and, if not repaired correctly, can lead to cancer. In humans, Ku70/80 recognizes DNA broken…”
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Thiopurine intolerance-causing mutations in NUDT15 induce temperature-dependent destabilization of the catalytic site
Published in Biochimica et biophysica acta. Proteins and proteomics (01-04-2019)“…Germline mutations in NUDT15 cause thiopurine intolerance during treatment of leukemia or autoimmune diseases. Previously, it has been shown that the mutations…”
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Mechanism of efficient double-strand break repair by a long non-coding RNA
Published in Nucleic acids research (04-11-2020)“…Abstract Mechanistic studies in DNA repair have focused on roles of multi-protein DNA complexes, so how long non-coding RNAs (lncRNAs) regulate DNA repair is…”
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SAP domain forms a flexible part of DNA aperture in Ku70/80
Published in The FEBS journal (01-07-2021)“…Nonhomologous end joining (NHEJ) is a DNA repair mechanism that religates double‐strand DNA breaks to maintain genomic integrity during the entire cell cycle…”
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Novel structural arrangement of nematode cystathionine β-synthases: characterization of Caenorhabditis elegans CBS-1
Published in Biochemical journal (15-04-2012)“…CBSs (cystathionine β-synthases) are eukaryotic PLP (pyridoxal 5 *-phosphate)-dependent proteins that maintain cellular homocysteine homoeostasis and produce…”
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PAICS deficiency, a new defect of de novo purine synthesis resulting in multiple congenital anomalies and fatal outcome
Published in Human molecular genetics (15-11-2019)“…Abstract We report for the first time an autosomal recessive inborn error of de novo purine synthesis (DNPS)—PAICS deficiency. We investigated two siblings…”
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Chaperone therapy for homocystinuria: the rescue of CBS mutations by heme arginate
Published in Journal of inherited metabolic disease (01-03-2015)“…Classical homocystinuria is caused by mutations in the cystathionine β-synthase ( CBS ) gene. Previous experiments in bacterial and yeast cells showed that…”
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Relapsed acute lymphoblastic leukemia-specific mutations in NT5C2 cluster into hotspots driving intersubunit stimulation
Published in Leukemia (01-06-2018)“…Activating mutations in NT5C2, a gene encoding cytosolic purine 5′-nucleotidase (cN-II), confer chemoresistance in relapsed acute lymphoblastic leukemia. Here…”
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10
Conformational Properties of Nine Purified Cystathionine β-Synthase Mutants
Published in Biochemistry (Easton) (12-06-2012)“…Protein misfolding due to missense mutations is a common pathogenic mechanism in cystathionine β-synthase (CBS) deficiency. In our previous studies, we…”
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Cystathionine beta-synthase mutants exhibit changes in protein unfolding: conformational analysis of misfolded variants in crude cell extracts
Published in Journal of inherited metabolic disease (01-05-2012)“…Protein misfolding has been proposed to be a common pathogenic mechanism in many inborn errors of metabolism including cystathionine β-synthase (CBS)…”
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Cross-Talk between the Catalytic Core and the Regulatory Domain in Cystathionine β-Synthase: Study by Differential Covalent Labeling and Computational Modeling
Published in Biochemistry (Easton) (14-12-2010)“…Cystathionine β-synthase (CBS) is a modular enzyme which catalyzes condensation of serine with homocysteine. Cross-talk between the catalytic core and the…”
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13
Biochemical and structural analysis of 14 mutant adsl enzyme complexes and correlation to phenotypic heterogeneity of adenylosuccinate lyase deficiency
Published in Human mutation (01-04-2010)“…Adenylosuccinate lyase (ADSL) deficiency is neurometabolic disease characterized by accumulation of dephosphorylated enzyme substrates SAICA-riboside (SAICAr)…”
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14
Biochemical properties of nematode O-acetylserine(thiol)lyase paralogs imply their distinct roles in hydrogen sulfide homeostasis
Published in Biochimica et biophysica acta (01-12-2013)“…O-Acetylserine(thiol)lyases (OAS-TLs) play a pivotal role in a sulfur assimilation pathway incorporating sulfide into amino acids in microorganisms and plants,…”
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15
Determination of cystathionine beta-synthase activity in human plasma by LC-MS/MS: potential use in diagnosis of CBS deficiency
Published in Journal of inherited metabolic disease (01-02-2011)“…Cystathionine β-synthase (CBS) deficiency is usually confirmed by assaying the enzyme activity in cultured skin fibroblasts. We investigated whether CBS is…”
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Oligomeric interface modulation causes misregulation of purine 5´-nucleotidase in relapsed leukemia
Published in BMC biology (19-10-2016)“…Relapsed acute lymphoblastic leukemia (ALL) is one of the main causes of mortality in childhood malignancies. Previous genetic studies demonstrated that…”
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Correction to Conformational Properties of Nine Purified Cystathionine β-Synthase Mutants
Published in Biochemistry (Easton) (10-07-2012)Get full text
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Conformationally constrained nucleoside phosphonic acids--potent inhibitors of human mitochondrial and cytosolic 5'(3')-nucleotidases
Published in Organic & biomolecular chemistry (28-10-2014)“…This work describes novel in vitro inhibitors of human mitochondrial (mdN) and cytosolic (cdN) 5'(3')-deoxynucleotidases. We designed a series of derivatives…”
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Backbone resonance assignments of human cytosolic dNT-1 nucleotidase
Published in Biomolecular NMR assignments (01-10-2014)“…Cytosolic dNT-1 nucleotidase plays a key role in the homeostasis of pyrimidine deoxyribonucleotides in mammalian cells. The enzyme is responsible for the…”
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Molecular characterization of the AdeI mutant of Chinese hamster ovary cells: A cellular model of adenylosuccinate lyase deficiency
Published in Molecular genetics and metabolism (2011)“…Adenylosuccinate lyase (ADSL, E. C. 4.3.2.2) carries out two non-sequential steps in de novo AMP synthesis, the conversion of succinylaminoimidazole…”
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