Results 61 to 70 of about 165,169 (375)
Structure of the uracil complex ofVaccinia virusuracil DNA glycosylase [PDF]
Poxvirus uracil DNA glycosylases are the most diverse members of the family I uracil DNA glycosylases (UNGs). The crystal structure of the uracil complex of Vaccinia virus uracil DNA glycosylase (D4) was determined at 2.03 Å resolution. One uracil molecule was located in the active-site pocket in each of the 12 noncrystallographic symmetry-related D4 ...
Debasish Chattopadhyay+3 more
openaire +3 more sources
The most common ways of their chemical modification are used namely, electrophilic and nucleophilic substitution reactions during the purposeful search for active substances among pyrimidines with aromatic properties.
O. V. Velchynska
doaj +1 more source
Cell Lysis in S. pombe ura4 Mutants Is Suppressed by Loss of Functional Pub1, Which Regulates the Uracil Transporter Fur4. [PDF]
Schizosaccharomyces pombe Δura4 cells lyse when grown on YPD medium. A S. pombe non-essential gene deletion library was screened to determine suppressors of the lysis phenotype.
Kohei Nishino+4 more
doaj +1 more source
Single-strand selective monofunctional uracil-DNA glycosylase (SMUG1) deficiency is linked to aggressive breast cancer and predicts response to adjuvant therapy [PDF]
Uracil in DNA is an important cause of mutagenesis. SMUG1 is a uracil DNA glycosylase that removes uracil through base excision repair. SMUG1 also processes radiation induced oxidative base damage as well as 5-fluorouracil incorporated into DNA during
Abdel-Fatah, TMA+9 more
core +1 more source
For the first time, on the quantum-mechanical level of theory MP2/6-311++G(2df,pd)//B3LYP/6-311++G(d,p), a full set of hydrogen (H)-bonded hetero associates m9Ade·m1Ura in the main tautomeric forms consisting of 18 different structures was obtained ...
D. Plodnik, I. Voiteshenko, D. Hovorun
doaj +1 more source
Synthesis of Uracil-Iodonium(III) Salts for Practical Utilization as Nucleobase Synthetic Modules
Iodonium(III) salts bearing uracil moieties have recently appeared in the literature, but their structural scope and utilization are limited because of their hygroscopic characteristics.
Naoko Takenaga+6 more
doaj +1 more source
Integration of DNA into bacterial chromosomes from plasmids without a counter-selection marker. [PDF]
Most bacteria can only be transformed with circular plasmids, so robust DNA integration methods for these rely upon selection of single-crossover clones followed by counter-selection of double-crossover clones.
Cartman, ST+6 more
core +5 more sources
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg+2 more
wiley +1 more source
In Japan, oral administration of tegafur‐uracil is recommended as postoperative adjuvant chemotherapy for patients diagnosed with primary lung adenocarcinomas of >2 cm size and staged as IA, IB, and IIA.
Nobutaka Kawamoto+4 more
doaj +1 more source
Synthesis of 5-substituted 2'-deoxyuridine-5'-phosphonate analogues and evaluation of their antiviral activity [PDF]
A small series of 5-(hetero)aryl-modified nucleoside phosphonates was synthesized via an 8-step procedure including a Wittig reaction and Suzuki-Miyaura coupling.
Balzarini, Jan+4 more
core +1 more source