Search Results - "Tor, Yitzhak"
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Antibiotics and Bacterial Resistance in the 21st Century
Published in Perspectives in Medicinal Chemistry (01-01-2014)“…Dangerous, antibiotic resistant bacteria have been observed with increasing frequency over the past several decades. In this review the factors that have been…”
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Targeting heparin and heparan sulfate protein interactions
Published in Organic & biomolecular chemistry (21-07-2017)“…Heparin and heparan sulfate glycosaminoglycans are long, linear polysaccharides that are made up of alternating dissacharide sequences of sulfated uronic acid…”
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Expanding a fluorescent RNA alphabet: synthesis, photophysics and utility of isothiazole-derived purine nucleoside surrogates
Published in Chemical science (Cambridge) (01-04-2017)“…A series of emissive ribonucleoside purine mimics, all comprised of an isothiazolo[4,3- ]pyrimidine core, was prepared using a divergent pathway involving a…”
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Isomorphic Emissive GTP Surrogate Facilitates Initiation and Elongation of in Vitro Transcription Reactions
Published in Journal of the American Chemical Society (29-10-2014)“…The fastidious behavior of T7 RNA polymerase limits the incorporation of synthetic nucleosides into RNA transcripts, particularly at or near the promoter. The…”
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Emissive Alkylated Guanine Analogs as Probes for Monitoring O6-Alkylguanine-DNA-transferase Activity
Published in ACS omega (17-08-2024)“…Human O 6 -alkylguanine-DNA-transferase (hAGT) is a repair protein that provides protection from mutagenic events caused by O 6 -alkylguanine lesions. As this…”
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Modification of oligodeoxynucleotides by on-column Suzuki cross-coupling reactions
Published in Chemical communications (Cambridge, England) (2018)“…The on-column functionalization of oligodeoxynucleotides via base-free Suzuki cross-coupling reactions is reported herein. These cross-coupling reactions were…”
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Conquering 2‑Aminopurine’s Deficiencies: Highly Emissive Isomorphic Guanosine Surrogate Faithfully Monitors Guanosine Conformation and Dynamics in DNA
Published in Journal of the American Chemical Society (11-03-2015)“…The archetypical fluorescent nucleoside analog, 2-aminopurine (2Ap), has been used in countless assays, though it suffers from very low quantum yield,…”
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Visibly Emissive and Responsive Extended 6‑Aza-Uridines
Published in Organic letters (17-10-2014)“…A family of extended 5-modified-6-aza-uridines was obtained via Suzuki coupling reactions with a common brominated precursor. Extending the…”
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Genome-wide screens uncover KDM2B as a modifier of protein binding to heparan sulfate
Published in Nature chemical biology (01-06-2021)“…Heparan sulfate (HS) proteoglycans bind extracellular proteins that participate in cell signaling, attachment and endocytosis. These interactions depend on the…”
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Author Correction: Genome-wide screens uncover KDM2B as a modifier of protein binding to heparan sulfate
Published in Nature chemical biology (01-05-2022)Get full text
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Cellular uptake of modified aminoglycosides
Published in Journal of antibiotics (01-01-2018)“…The uptake of modified amino- and guanidino-glycosides derived from kanamycin, tobramycin and neomycin in native and mutant CHO cells is examined using…”
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Cellular activity of siRNA oligonucleotides containing synthetic isomorphic nucleoside surrogates
Published in Chemical communications (Cambridge, England) (01-01-2015)“…Singly and multiply modified synthetic siRNA oligonucleotides, containing isomorphic surrogate nucleobases, show high interference potency in cell culture,…”
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Enzymatic incorporation and utilization of an emissive 6-azauridine
Published in Organic & biomolecular chemistry (2017)“…To display favorable fluorescent properties, the non-emissive native nucleosides need to be modified. Here we present a motif that relies on conjugating…”
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Surfen, a small molecule antagonist of heparan sulfate
Published in Proceedings of the National Academy of Sciences - PNAS (02-09-2008)“…In a search for small molecule antagonists of heparan sulfate, we examined the activity of bis-2-methyl-4-amino-quinolyl-6-carbamide, also known as surfen…”
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Design, Synthesis, and Spectroscopic Properties of Extended and Fused Pyrrolo-dC and Pyrrolo-C Analogs
Published in Organic letters (15-06-2012)“…The syntheses of four fluorescent nucleoside analogs, related to pyrrolo-C (PyC) and pyrrolo-dC (PydC) through the conjugation or fusion of a thiophene moiety,…”
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Isomorphic Fluorescent Nucleosides
Published in Accounts of chemical research (07-05-2024)“…Conspectus In 1960, Weber prophesied that “There are many ways in which the properties of the excited state can be utilized to study points of ignorance of the…”
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Enzymatic Incorporation of Emissive Pyrimidine Ribonucleotides
Published in Chemistry, an Asian journal (02-03-2009)“…Making an emission: T7 RNA polymerase incorporates a series of thiophene‐modified uridine triphosphate (UTP) analogues to generate emissive RNA transcripts…”
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Modified 6-Aza Uridines: Highly Emissive pH-Sensitive Fluorescent Nucleosides
Published in Chemphyschem (08-10-2012)“…Optimized facile syntheses and highly desirable spectroscopic properties of two isomorphic fluorescent pyrimidines, comprising a 1,2,4‐triazine motif…”
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Small molecule antagonists of cell-surface heparan sulfate and heparin-protein interactions
Published in Chemical science (Cambridge) (01-10-2015)“…Surfen, bis-2-methyl-4-amino-quinolyl-6-carbamide, was previously reported as a small molecule antagonist of heparan sulfate (HS), a key cell-surface…”
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Stringent Nucleotide Recognition by the Ribosome at the Middle Codon Position
Published in Molecules (Basel, Switzerland) (29-08-2017)“…Accurate translation of the genetic code depends on mRNA:tRNA codon:anticodon base pairing. Here we exploit an emissive, isosteric adenosine surrogate that…”
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