Results 91 to 100 of about 23,086 (229)
Acta Crystallographica Section E, 2012 The stereochemistry of the title compound, C32H44O10, at the cyclobutane ring is cis-anti-cis. The molecule lies across an inversion center. In the crystal, weak C—H...O hydrogen bonds connect molecules into chains along [100], forming R22(6 ...
Alan J. Lough, Kelsey Jack, William Tam
doaj +1 more source
Acta Dermato-Venereologica, 2020 DNA damage and oxidative stress play a critical role in photoageing. Seborrhoeic keratosis (SK) affects sunlight-exposed sites in aged individuals. This study examined the mechanism of photoageing in SK.
Kyung Ah Cheong, Ai-Young Lee
doaj +1 more source
UV-Induced Structural Changes of Model DNA Helices Probed by Optical Spectroscopy [PDF]
, 2009 International audienceChemical alterations of DNA, if not repaired, may lead to carcinogenic mutations. Structural modifications of the helix around the lesion enable its recognition by repair enzymes.
Bányász, A. +4 more
core +4 more sources
Dibenzazepin‐verbrückte Netzwerk‐Polymer‐Phthalocyanine als abbaubare heterogene Photokatalysatoren
Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.Photodynamische Dibenzazepin‐Brücke wurde in Zink‐ und Kobalt‐Netzwerk‐Polymer‐Phthalocyanine (NP‐Pcs) eingeführt, um abbaubare heterogene Photokatalysatoren zu erhalten. Zum ersten Mal spielt die Bestrahlung mit Licht eine Schlüsselrolle beim „Design, der Verwendung und dem Abbau” von NP‐Pcs.
Erem Ahmetali +4 more
wiley +1 more source
Phosphorylated HBO1 at UV irradiated sites is essential for nucleotide excision repair
Nature Communications, 2017 Repair of cyclobutane pyrimidine dimers requires access to DNA by the nucleotide excision repair machinery. Here the authors show that HBO1 facilitates accumulation of SNF2H and ACF1 to make chromatin more accessible after ultraviolet damage.
Hiroyuki Niida +14 more
doaj +1 more source
Dibenzazepine Bridged Network Polymeric Phthalocyanines as Degradable Heterogeneous Photocatalysts
Angewandte Chemie International Edition, Volume 65, Issue 16, 13 April 2026.Dibenzazepine photodynamic bridge has been introduced to zinc and cobalt networks phthalocyanines (NP‐Pcs) to obtain degradable heterogeneous photocatalysts. For the first time, light irradiation plays a key role in “design, use and degradation” of NP‐Pcs.
Erem Ahmetali +4 more
wiley +1 more source
Synthesis of Cis-Diammine (1,1-cyclobutane dicarboxylate) Platinum(II) [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2017 Platinum-based anticancer drugs are chemotherapeutic agents to treat cancer. Carboplatin (cis diammine cyclobutane dicarboxylate platinum (II)) is a second generation drug that has less toxic than cisplatin, allowing for high dosages. In the first stage,
Ali Nemati kharat +3 more
doaj
Nature CommunicationsFour-membered carbocycles are among the most sought-after backbones which are commonly found in biologically active molecules. However, difficulties on their producing are existing due to its highly strained ring system.
Xing-Wei Gu, Yan-Hua Zhao, Xiao-Feng Wu
doaj +1 more source
IUCrJ, 2018 Cyclobutane pyrimidine dimer (CPD) photolyases harness the energy of blue light to repair UV-induced DNA CPDs. Upon binding, CPD photolyases cause the photodamage to flip out of the duplex DNA and into the catalytic site of the enzyme.
Manuel Maestre-Reyna +5 more
doaj +1 more source
Structural basis of cyclobutane pyrimidine dimer recognition by UV-DDB in the nucleosome
Nature CommunicationsIn mammalian global genomic nucleotide excision repair, UV-DDB plays a central role in recognizing DNA lesions, such as 6-4 photoproducts and cyclobutane pyrimidine dimers, within chromatin.
Syota Matsumoto +10 more
doaj +1 more source