Cellular Repair Machinery
Cellular Repair Machinery - Related Videos
10:28
The Encapsulation of Cell-free Transcription and Translation Machinery in Vesicles for the Construction of Cellular Mimics
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Cited by 12 •
2013
Herein we describe simple methods for the preparation of vesicles, the encapsulation of transcription and translation machinery, and the monitoring of protein production. The resulting cell-free systems can be used as a starting point from which to build increasingly complex cellular mimics.
10:28
Imaging Mismatch Repair and Cellular Responses to DNA Damage in Bacillus subtilis
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Cited by 8 •
2010
A detailed protocol is described for imaging the real time formation of DNA repair complexes in Bacillus subtilis cells.
10:28
Repressing Gene Transcription by Redirecting Cellular Machinery with Chemical Epigenetic Modifiers
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Cited by 7 •
2018
Regulation of the chromatin environment is an essential process required for proper gene expression. Here, we describe a method for controlling gene expression through the recruitment of chromatin-modifying machinery in a gene-specific and reversible manner.
02:25
Overview of DNA Repair
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2020
In order to be passed through generations, genomic DNA must be undamaged and error-free. However, every day, DNA in a cell undergoes several thousand to a million damaging events by natural causes and external factors. Ionizing radiation such as UV rays, free radicals produced during cellular respiration, and hydrolytic damage from metabolic reactions can alter the structure of DNA. Damages caused include single-base alteration, base dimerization, chain breaks, and cross-linkage. Chemically...
08:47
Super-resolution Imaging of the Bacterial Division Machinery
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Cited by 17 •
2013
We describe a super-resolution imaging method to probe the structural organization of the bacterial FtsZ-ring, an essential apparatus for cell division. This method is based on quantitative analyses of photoactivated localization microscopy (PALM) images and can be applied to other bacterial cytoskeletal proteins.
FAQs
The process follows a coordinated sequence: damage is detected, the affected base or segment is excised, replacement DNA is synthesized, and remaining breaks are sealed. This combination of removal, accurate replacement, and closure restores DNA structure rather than merely masking the lesion. In immune cells, effective repair can help preserve cellular function during inflammatory stress.
Calcium-triggered vesicle fusion provides a mechanism for repairing injured cell membranes. A membrane disruption can therefore be addressed through the targeted movement and fusion of vesicles at the damaged site, helping restore the boundary between the cell and its surroundings. This process complements DNA repair because it repairs a physical cellular structure through a different molecular route.
Damage sensing identifies what requires intervention, while targeted removal or replacement addresses the defective material and restoration reestablishes structure. Separating these functions allows repair to respond to different forms of injury, including DNA lesions and membrane disruption. The coordinated sequence is important because incomplete correction could leave cellular structures unable to support normal function or survival.
Inflammatory conditions can damage cellular components while immune cells remain active. Repair pathways help those cells withstand this stress by correcting affected structures and supporting continued cellular function. In immunology, this creates a link between repair capacity and host defense: damage control may influence whether immune cells remain functional as they respond to infection and inflammation.
A useful analysis can follow three linked features: how damage is sensed, which cellular material is removed or replaced, and how structure is restored. Researchers can then examine whether infection changes these steps or whether repair disruption accompanies altered host defense. This framework applies across DNA, proteins, membranes, and other cellular structures without treating all damage as identical.
Microbes may manipulate cellular repair pathways, potentially changing how host cells respond to infection and how disease progresses. Because repair also supports immune-cell function and limits tissue injury, disruption could influence the effects of antimicrobial or immune-based therapies. Studying these interactions may therefore connect microbial strategy, host damage control, and treatment response.