Results 41 to 50 of about 14,669 (203)

6-(3,5-Dimethylbenzyl)-5-ethyl-1-[(2-phenylethoxy)methyl]pyrimidine-2,4(1H,3H)dione

open access: yesActa Crystallographica Section E, 2012
In the title pyrimidine derivative, C24H28N2O3, the uracil unit is essentially planar with an r.m.s. deviation of 0.0054 (1) Å for the eight non-H atoms. The pyrimidine ring is tilted by a dihedral angle of 77.08 (7)
Nasser R. El-Brollosy   +4 more
doaj   +1 more source

Evaluation and modulation of DNA lesion bypass in an SV40 large T antigen‐based in vitro replication system

open access: yesFEBS Open Bio, 2021
DNA damage removal by nucleotide excision repair (NER) and replicative bypass via translesion synthesis (TLS) and template switch (TSw) are important in ensuring genome stability.
Zoltán Szeltner   +4 more
doaj   +1 more source

Ethyl 2-(2,6-difluorobenzyloxy)-4-(4,6-dimethoxypyrimidin-2-yl)quinoline-3-carboxylate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C25H21F2N3O5, the pyrimidine and difluorobenzyloxy rings are twisted away from the central quinoline ring system, making dihedral angles of 54.6 (1) and 74.1 (1)°, respectively. A weak C—H...O
Yuan-xiang Li
doaj   +1 more source

N-Butyl-4,6-diphenylpyrimidin-2-amine

open access: yesActa Crystallographica Section E, 2011
In the title compound, C20H21N3, the pyrimidine ring is inclined at dihedral angles of 51.57 (4) and 2.49 (4)° to the two phenyl rings. The dihedral angle between the two terminal phenyl rings is 50.44 (4)°.
Hoong-Kun Fun   +3 more
doaj   +1 more source

1-[(Cyclopropylmethoxy)methyl]-6-(3,4-dimethoxybenzyl)-5-ethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione ethanol hemisolvate

open access: yesActa Crystallographica Section E, 2012
The asymmetric unit of the compound, C20H26N2O5·0.5C2H5OH, consists of two tetrahydropyrimidine-2,4-dione molecules and an ethanol molecule. The pyrimidine rings are nearly planar (r.m.s.
Nasser R. El-Brollosy   +3 more
doaj   +1 more source

The Roles of Several Residues of Escherichia coli DNA Photolyase in the Highly Efficient Photo-Repair of Cyclobutane Pyrimidine Dimers

open access: yesJournal of Nucleic Acids, 2010
Escherichia coli DNA photolyase is an enzyme that repairs the major kind of UV-induced lesions, cyclobutane pyrimidine dimer (CPD) in DNA utilizing 350–450 nm light as energy source.
Lei Xu, Guoping Zhu
doaj   +1 more source

Base-resolution UV footprinting by sequencing reveals distinctive damage signatures for DNA-binding proteins

open access: yesNature Communications, 2023
Decades ago, it was shown that proteins binding to DNA can quantitatively alter the formation of DNA damage by UV light. This established the principle of UV footprinting for non-intrusive study of protein-DNA contacts in living cells, albeit at limited ...
Kerryn Elliott   +3 more
doaj   +1 more source

Pyrimidine Dimers Block Simian Virus 40 Replication Forks [PDF]

open access: yesMolecular and Cellular Biology, 1986
UV light produces lesions, predominantly pyrimidine dimers, which inhibit DNA replication in mammalian cells. The mechanism of inhibition is controversial: is synthesis of a daughter strand halted at a lesion while the replication fork moves on and reinitiates downstream, or is fork progression itself blocked for some time at the site of a lesion?
C A, Berger, H J, Edenberg
openaire   +2 more sources

2,4-Diamino-5-(4-chlorophenyl)-6-ethylpyrimidin-1-ium 2-propanamidobenzoate

open access: yesActa Crystallographica Section E, 2011
In the title salt, C12H14ClN4+·C10H10NO3−, zwitterionic N—H...O interactions form an R22(8) ring. The crystal structure is stabilized by N—H...O and N—H...N hydrogen bonds involving two different eight ...
Rita Mathews, Sampath Natarajan
doaj   +1 more source

Replication of cyclobutane pyrimidine dimer analogue by Ex Taq DNA polymerase

open access: yesScience and Technology of Advanced Materials, 2007
We previously reported an efficient and reversible template-directed photoligation using 5-carboxyvinyl-2'-deoxyuridine (CVU)-containing ODN at the 5'-terminal.
Masayuki Ogino et al
doaj  

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