Dna Repair Genetics
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Genetics and human rights: Two histories: restoring genetic identity after forced disappearance and identity suppression in Argentina and after compulsory isolation for leprosy in Brazil
Over the past three decades, there has been an accelerated development of genetic technology, leading to its use in human genetic identification for many purposes. Additionally, it has been made explicit that identity is a fundamental human right. A number of historical circumstances have connected these developments. Personal identity is increasingly associ
Genet. Mol. Biol.. Publicado em: 2014
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2. A resposta SOS de Caulobacter crescentus e relações dos mecanismos de reparo com a progressão do ciclo celular. / The SOS response of Caulobacter crescentus and the relationship between DNA repair mechanisms and the cell cycle progression.
Caulobacter crescentus pertence ao grupo das proteobactérias e apresenta a característica distinta de diferenciação celular a cada divisão. Este trabalho visou desvendar os mecanismos de reparo de DNA em C. crescentus. Identificamos 44 genes pertecentes ao regulon SOS através da construção de um mutante para o repressor deste, LexA. Caracterizamos fu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/05/2011
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3. ERCC1 (Excision Repair Cross Complementing Group 1) protein, messenger RNA level and genetic polymorphisms as prognostic markers in patients diagnosed with head and neck squamous cell carcinoma treated with surgery and adjuvant chemoradiation / Expressão da proteína ERCC1 (Excision Repair Cross Complementing Group 1), do seu RNA mensageiro e de polimorfismos genéticos como fatores prognósticos em pacientes portadores de carcinoma epidermóide de cabeça e pescoço operados e submetidos à quimiorradioterapia adjuvante
INTRODUÇÃO: Quimiorradioterapia (QRT) concomitante adjuvante aumenta a sobrevida livre de doença (SLD) em pacientes portadores de carcinoma epidermóide de cabeça e pescoço (CECCP) de alto risco operados com intenção curativa, porém está associada a toxicidade não desprezível e seu impacto na sobrevida global (SG) é incerto. ERCC1 (Excision Repai
Publicado em: 2009
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4. Radiation Genetics in Microorganisms and Evolutionary Considerations
Recent knowledge of UV-resistance mechanisms in microorganisms is reviewed in perspective, with emphasis on E. coli. Dark-repair genes are classified into "excision" and "tolerance" (ability to produce a normal copy of DNA from damaged DNA). The phenotype of DNA repair is rather common among the microorganisms compared, and yet their molecular mechanisms are
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5. Cloning and nucleotide sequence of DNA mismatch repair gene PMS1 from Saccharomyces cerevisiae: homology of PMS1 to procaryotic MutL and HexB.
The PMS1 gene from Saccharomyces cerevisiae, implicated in DNA mismatch repair in yeast cells (M. S. Williamson, J. C. Game, and S. Fogel, Genetics 110:609-646, 1985), was cloned, and the nucleotide sequence was determined. The nucleotide sequence showed a 2,712-base-pair open reading frame; the predicted molecular mass of the deduced protein is 103 kilodalt
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6. The p53 status of Chinese hamster V79 cells frequently used for studies on DNA damage and DNA repair.
Chinese hamster lung fibroblast V79 cells have been widely used in studies of DNA damage and DNA repair. Since the p53 gene is involved in normal responses to DNA damage, we have analyzed the molecular genetics and functional status of p53 in V79 cells and primary Chinese hamster embryonic fibroblast (CHEF) cells. The coding product of the p53 gene in CHEF c
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7. Methyl-directed repair of DNA base-pair mismatches in vitro.
An assay has been developed that permits analysis of DNA mismatch repair in cell-free extracts of Escherichia coli. The method relies on repair of heteroduplex molecules of f1 R229 DNA, which contain a base-pair mismatch within the single EcoRI site of the molecule. As observed with mismatch heteroduplexes of lambda DNA [Pukkila, P. J., Peterson, J., Herman,
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8. MMS2, encoding a ubiquitin-conjugating-enzyme-like protein, is a member of the yeast error-free postreplication repair pathway
Among the three Saccharomyces cerevisiae DNA repair epistasis groups, the RAD6 group is the most complicated and least characterized, primarily because it consists of two separate repair pathways: an error-free postreplication repair pathway, and a mutagenesis pathway. The rad6 and rad18 mutants are defective in both pathways, and the rev3 mutant affects onl
The National Academy of Sciences.
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9. Molecular genetics of herpes simplex virus. III. Fine mapping of a genetic locus determining resistance to phosphonoacetate by two methods of marker transfer.
We have transferred a genetic locus determining resistance to phosphonoacetic acid (PAAr) from one herpes simplex viral genome to another by two methods of marker transfer. One method requires recombination between an intact DNA molecule and a restriction endonuclease DNA fragment, whereas the other requires repair of a partial heteroduplex formed between th
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10. Gene fusions with lacZ by duplication insertion in the radioresistant bacterium Deinococcus radiodurans.
Deinococcus radiodurans is the most-studied species of a eubacterial family characterized by extreme resistance to DNA damage. We have focused on developing molecular biological techniques to investigate the genetics of this organism. We report construction of lacZ gene fusions by a method involving both in vitro splicing and the natural transformation of D.
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11. Identification, physical map location and sequence of the denV gene from bacteriophage T4.
The denV gene from bacteriophage T4, which codes for endonuclease V, a small DNA repair enzyme, has been cloned and identified by an approach combining DNA sequencing and genetics, independent of the phenotypic effect of the cloned gene. Appropriate DenV+ and DenV- deletion mutants were mapped physically to define precisely a region encompassing the denV gen
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12. Expression genetics in cancer: Shifting the focus from DNA to RNA
Expression genetics is a conceptually different approach to the identification of cancer-related genes than the search for mutations at the genome level. While mutations lie at the heart of cancer, at least in its early stages, what is recognized here are phenotypic changes usually many steps removed from the initiating mutation. Classically cancer geneticis
The National Academy of Sciences of the USA.