Results 71 to 80 of about 210,406 (304)

Different roles of eukaryotic MutS and MutL complexes in repair of small insertion and deletion loops in yeast. [PDF]

open access: yesPLoS Genetics, 2013
DNA mismatch repair greatly increases genome fidelity by recognizing and removing replication errors. In order to understand how this fidelity is maintained, it is important to uncover the relative specificities of the different components of mismatch ...
Nina V Romanova, Gray F Crouse
doaj   +1 more source

DNA repair systems and the pathogenesis of Mycobacterium tuberculosis: varying activities at different stages of infection [PDF]

open access: yes, 2010
Mycobacteria, including most of all MTB (Mycobacterium tuberculosis), cause pathogenic infections in humans and, during the infectious process, are exposed to a range of environmental insults, including the host's immune response.
Adams   +117 more
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

Decreased transcription-coupled nucleotide excision repair capacity is associated with increased p53- and MLH1-independent apoptosis in response to cisplatin

open access: yesBMC Cancer, 2010
Background One of the most commonly used classes of anti-cancer drugs presently in clinical practice is the platinum-based drugs, including cisplatin.
Smith Jennifer M   +2 more
doaj   +1 more source

Surviving a Genome Collision: Genomic Signatures of Allopolyploidization in the Recent Crop Species [PDF]

open access: yes, 2017
Polyploidization has played a major role in crop plant evolution, leading to advantageous traits that have been selected by humans. Here, we describe restructuring patterns in the genome of Brassica napus L., a recent allopolyploid species.
Chalhoub, Boulos   +2 more
core   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Case report: a rare case of hereditary colorectal cancer and brain tumor with café au lait spots in a child: constitutional mismatch repair deficiency (CMMRD) syndrome

open access: yesEgyptian Pediatric Association Gazette
Background Colorectal carcinoma (CRC) is rarely seen in the pediatric population. Hereditary cancers due to mismatch repair deficiency cause colorectal, brain, hematological malignancies, and other tumors in early childhood.
Zubair Khurshid   +2 more
doaj   +1 more source

Evaluation of a tumor microenvironment-based prognostic score in primary operable colorectal cancer [PDF]

open access: yes, 2015
Purpose: The tumor microenvironment is recognized as an important determinant of progression and outcome in colorectal cancer. The aim of the present study was to evaluate a novel tumor microenvironment–based prognostic score, based on histopathologic ...
Edwards, Joanne   +6 more
core   +1 more source

EGFR inhibits DNA mismatch repair [PDF]

open access: yesProceedings of the National Academy of Sciences, 2015
Safeguarding the integrity of the genome should not be left to chance. Indeed, all organisms have highly effective mechanisms to detect and remove errors and lesions in DNA. DNA mismatch repair (MMR) serves as the final safeguard in assuring the fidelity of DNA replication from bacteria to humans and backstops the nucleotide selection and exonuclease ...
Peggy, Hsieh, Alexander H, Pearlman
openaire   +2 more sources

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