DNA Damage

News DNA Damage

• DNA repair: Opening the hatch to heal the break
  

  LMU researchers have determined the structure of a key enzyme complex that is involved in DNA repair, and traced the cycle of conformational changes that it undergoes while performing its biochemical function. Various types of DNA damage can have serious repercussions, both for the individual cells more

• Stem cells moonlight to protect the stomach from bacterial invaders
  

  Our mucosal surfaces are constantly exposed to numerous bacterial species, some of which can induce DNA damage in host cells. Normally this remains inconsequential, as the rapid turnover of the mucosa means damaged cells are shed within days. However, if the long-lived stem cells that continually gi more

• A new mechanism for accessing damaged DNA
  

  UV light damages the DNA of skin cells, which can lead to skin cancer. But this process is counteracted by the DNA repair machinery, acting as a molecular sunscreen. It has been unclear, however, how repair proteins work on DNA tightly packed in chromatin, where access to DNA damage is restricted by more

Videos DNA Damage

ICR Researchers use Cryo-Electron Microscopy to zoom in on DNA code being read in cells

ICR Researchers led by Dr Alessandro Vannini have captured images of molecular machinery called RNA Polymerase III in the act of transcribing a gene in exquisite and unprecedented detail. Animation provided by Phospho Biomedical Animation more

Publications DNA Damage

• Electronic cigarette aerosols induce DNA damage and reduce DNA repair: Consistency across species [Biological Sciences]

  We read with great interest the work of Lee et al. (1), in which the authors report that mice exposed to electronic cigarette aerosol have increased levels of DNA lesions and decreased DNA repair activity. This work sparked important discussion both in PNAS (2, 3) and science media (4). We do share more

• Reply to Queimado et al.: E-cigarettes induce DNA damage and inhibit DNA repair in mice and human cells [Biological Sciences]

  We believe that Queimado et al. (1) may have inadvertently missed several key details presented in our recent PNAS publication (2). First, for the determination of nicotine effects on DNA adduct formation and DNA repair activity, the nicotine concentrations used for 1-h treatments of human lung and more

• Pharmacophore modeling, molecular docking and molecular dynamics simulations toward identifying lead compounds for Chk1

  Publication date: Available online 4 June 2018 Source:Computational Biology and Chemistry Author(s): Yaping Li, Jiale Peng, Yeheng Zhou, Penghua Li, Yingying Li, Xingyong Liu, Abu Nasar Siddique, Li Zhang, Zhili Zuo Checkpoint kinase 1 (Chk1), a serine/threonine protein kinas more