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Affiliation(s)
- S Malavaud
- Service d'épidémiologie et hygiène hospitalière, CHU de Toulouse, groupe Rangueil-Larrey, 1 avenue Jean-Poulhès, Toulouse cedex 9, France
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Chamming’s F, Lévèque N, Mazières J, Auriol J, Otal P, Rousseau H, Chabbert V. Thermo-ablation pulmonaire : tolérance et efficacité thérapeutique dans une population constituée majoritairement de tumeurs primitives pulmonaires. ACTA ACUST UNITED AC 2010; 91:885-94. [DOI: 10.1016/s0221-0363(10)70130-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Rousseau H, Chabbert V, Maracher M, El Aassar O, Auriol J, Massabuau P, Moreno R. Response to ‘Magnetic Resonance Imaging for Aortic Dissection’. Eur J Vasc Endovasc Surg 2010. [DOI: 10.1016/j.ejvs.2010.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Coin F, Auriol J, Tapias A, Clivio P, Vermeulen W, Egly JM. Phosphorylation of XPB helicase regulates TFIIH nucleotide excision repair activity. EMBO J 2004; 23:4835-46. [PMID: 15549133 PMCID: PMC535092 DOI: 10.1038/sj.emboj.7600480] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2004] [Accepted: 10/20/2004] [Indexed: 11/08/2022] Open
Abstract
Nucleotide excision repair (NER) removes damage from DNA in a tightly regulated multiprotein process. The xeroderma pigmentosum group B (XPB) helicase subunit of TFIIH functions in NER and transcription. The serine 751 (S751) residue of XPB was found to be phosphorylated in vivo. This phosphorylation inhibits NER and the microinjection of a phosphomimicking XPB-S751E mutant is unable to correct the NER defect of XP-B cells. Conversely, XPB-S751 dephosphorylation or its substitution with alanine (S751A) restores NER both in vivo and in vitro. Surprisingly, phospho/dephosphorylation of S751 spares TFIIH-dependent transcription. Finally, the phosphorylation of XPB-S751 does not impair the TFIIH unwinding of the DNA around the lesion, but rather prevents the 5' incision triggered by the ERCC1-XPF endonuclease. These data support an additional role for XPB in promoting the incision of the damaged fragment and reveal a point of NER regulation on TFIIH without interference in its transcription activity.
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Affiliation(s)
- Frédéric Coin
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, Illkirch, CU Strasbourg, France
| | - Jérome Auriol
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, Illkirch, CU Strasbourg, France
| | - Angel Tapias
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, Illkirch, CU Strasbourg, France
| | - Pascale Clivio
- Institut de Chimie des Substances Naturelles du CNRS, ICSN-CNRS, Gif sur Yvette, France
| | - Wim Vermeulen
- Department of Genetics, Medical Genetic Cluster, Erasmus MC, Rotterdam, The Netherlands
| | - Jean-Marc Egly
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, Illkirch, CU Strasbourg, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, BP 163, 67404 Illkirch Cedex, CU de Strasbourg, France. Tel.: +33 388 65 34 47; Fax: +33 388 65 32 01; E-mail:
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Seroz T, Winkler GS, Auriol J, Verhage RA, Vermeulen W, Smit B, Brouwer J, Eker AP, Weeda G, Egly JM, Hoeijmakers JH. Cloning of a human homolog of the yeast nucleotide excision repair gene MMS19 and interaction with transcription repair factor TFIIH via the XPB and XPD helicases. Nucleic Acids Res 2000; 28:4506-13. [PMID: 11071939 PMCID: PMC113875 DOI: 10.1093/nar/28.22.4506] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2000] [Revised: 10/02/2000] [Accepted: 10/02/2000] [Indexed: 01/26/2023] Open
Abstract
Nucleotide excision repair (NER) removes UV-induced photoproducts and numerous other DNA lesions in a highly conserved 'cut-and-paste' reaction that involves approximately 25 core components. In addition, several other proteins have been identified which are dispensable for NER in vitro but have an undefined role in vivo and may act at the interface of NER and other cellular processes. An intriguing example is the Saccharomyces cerevisiae Mms19 protein that has an unknown dual function in NER and RNA polymerase II transcription. Here we report the cloning and characterization of a human homolog, designated hMMS19, that encodes a 1030 amino acid protein with 26% identity and 51% similarity to S.cerevisiae Mms19p and with a strikingly similar size. The expression profile and nuclear location are consistent with a repair function. Co-immunoprecipitation experiments revealed that hMMS19 directly interacts with the XPB and XPD subunits of NER-transcription factor TFIIH. These findings extend the conservation of the NER apparatus and the link between NER and basal transcription and suggest that hMMS19 exerts its function in repair and transcription by interacting with the XPB and XPD helicases.
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MESH Headings
- Amino Acid Sequence
- Animals
- Blotting, Northern
- Cell Line
- Chromosome Mapping
- Chromosomes, Human, Pair 10/genetics
- Cloning, Molecular
- DNA Helicases/metabolism
- DNA Repair/genetics
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- DNA-Binding Proteins/metabolism
- Female
- Fungal Proteins/genetics
- Gene Expression
- Gene Expression Regulation, Developmental
- HeLa Cells
- Humans
- In Situ Hybridization, Fluorescence
- Male
- Molecular Sequence Data
- Phylogeny
- Protein Binding
- Proteins/genetics
- Proteins/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Saccharomyces cerevisiae Proteins
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- TATA-Binding Protein Associated Factors
- Tissue Distribution
- Transcription Factor TFIID
- Transcription Factor TFIIH
- Transcription Factors/metabolism
- Transcription Factors, TFII
- Xeroderma Pigmentosum Group D Protein
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Affiliation(s)
- T Seroz
- MGC-Department of Cell Biology and Genetics, Center for Biomedical Genetics, Erasmus University Rotterdam, PO Box 1738, 3000 DR Rotterdam, The Netherlands
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Vermeulen W, Bergmann E, Auriol J, Rademakers S, Frit P, Appeldoorn E, Hoeijmakers JH, Egly JM. Sublimiting concentration of TFIIH transcription/DNA repair factor causes TTD-A trichothiodystrophy disorder. Nat Genet 2000; 26:307-13. [PMID: 11062469 DOI: 10.1038/81603] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The repair-deficient form of trichothiodystrophy (TTD) most often results from mutations in the genes XPB or XPD, encoding helicases of the transcription/repair factor TFIIH. The genetic defect in a third group, TTD-A, is unknown, but is also caused by dysfunctioning TFIIH. None of the TFIIH subunits carry a mutation and TFIIH from TTD-A cells is active in both transcription and repair. Instead, immunoblot and immunofluorescence analyses reveal a strong reduction in the TFIIH concentration. Thus, the phenotype of TTD-A appears to result from sublimiting amounts of TFIIH, probably due to a mutation in a gene determining the complex stability. The reduction of TFIIH mainly affects its repair function and hardly influences transcription.
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Affiliation(s)
- W Vermeulen
- Department of Cell Biology and Genetics, Medical Genetics Center, Erasmus University Rotterdam, The Netherlands
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Abstract
TTD is a rare human genetic disease caused by mutations in XPB and XPD, two subunits of the transcription/repair factor TFIIH, and whose outstanding clinical characteristic is a lack of most human UHS proteins resulting in sulfur-deficient brittle hair. In an attempt to understand this transcription defect, we report here the genomic cloning of two highly related UHS keratin genes specifically expressed in follicular and epidermal cells. In addition to a high degree of nucleotide homology (87%), both genes also have a similar 90-nt promoter sequence. In-vivo and in-vitro studies allowed us to specify the position of the start sites, the TATA-boxes and some regulatory regions. Results indicate that both genes present common features in the regulation of their transcription and suggest that control of their expression might be affected by mutations in TFIIH subunits.
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Affiliation(s)
- C Perez
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, BP 163, F-67404, Illkirch Cedex, Université Louis Pasteur, Strasbourg, France
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Perez C, Auriol J, Seroz T, Egly JM. Genomic organization and promoter characterization of the mouse and human genes encoding p62 subunit of the transcription/DNA repair factor TFIIH. Gene 1998; 213:73-82. [PMID: 9630526 DOI: 10.1016/s0378-1119(98)00197-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
TFIIH, a multisubunit complex was shown to be involved in several biological fundamental mechanisms of the cell: transcription, nucleotide excision repair and cell cycle regulation. p62 is one of the six subunits that constitutes the core of TFIIH versus the holoenzyme, which contains, in addition, the ternary kinase CAK complex. To gain an insight into the regulation of the expression of the various subunits of the core, we report here the cDNA cloning and the genomic organization of the mouse p62 gene. A promoter analysis of both mouse and human genes allow us to localize two start sites and the regulatory regions, thus demonstrating a significative conservation among both species. Both promoters lack classical elements such as CCAAT and TATA boxes. Analysis of the expression of the p62 gene reveals an overexpression in testis tissue for both species.
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Affiliation(s)
- C Perez
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, BP 163, F-67404, Illkirch Cedex, Université Louis Pasteur, Strasbourg, France
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Abstract
A competitive enzyme immunoassay using a bispecific monoclonal antibody (Bi-MAb) was developed to quantify acetylaminofluorene (AAF) adducts fixed on DNA and then compared to the spectrophotometric method. It was shown that this simple method allowed the measurement of as low as 2 pmol per assay of AAF bound to DNA. This technique was used to monitor synthesis and purification of N-acetoxy-N-2-acetylaminofluorene modified dGTP (AAF-dGTP). It was shown that AAF-dGTP can be a substrate for the terminal deoxynucleotidyl transferase. Finally, using the Bi-MAb we developed a non-radioactive sandwich hybridization assay making use of oligonucleotide covalently bound to microwells and of synthetic oligonucleotide tailed with AAF-dGTP as a probe.
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Affiliation(s)
- J Auriol
- Laboratoire de Prédéveloppement des Sondes, Institut Pasteur, Paris, France
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Auriol J, Guesdon JL, Guibourdenche M, Riou JY. Characterization of serogroup A Neisseria meningitidis strains by rRNA gene restriction patterns and PCR: correlation with the results of serotyping, subtyping and multilocus enzyme electrophoresis. FEMS Immunol Med Microbiol 1995; 10:219-26. [PMID: 7773238 DOI: 10.1111/j.1574-695x.1995.tb00036.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We studied 35 strains of Neisseria meningitidis serogroup A from different locations (France, Central African Republic, Sudan and Burkina Faso) using both ribotyping and a polymerase chain reaction (PCR). A non-radioactive probe label was used for ribotyping; detection consisted of an immunoenzymatic procedure using a bispecific antibody. The PCR was designed to amplify the 16S-23S rDNA internal transcribed spacer. These techniques were compared with other markers. The strains were identified as belonging to three clones (I, III-1, IV) by multilocus enzyme electrophoresis (MEE) and to three subtypes by serological methods. Ribotyping identified five groups and PCR identified four groups. Ribotyping gave more diversity between strains than either MEE or sero/subtyping, but confirmed the epidemiological data provided by the combination of these two techniques. The PCR provided a simple and convenient one-step procedure for the differentiation of strains of serogroup A.
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Affiliation(s)
- J Auriol
- Laboratoire de Prédéveloppement des Sondes, Institut Pasteur, Paris, France
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Abstract
A mouse hybrid hybridoma (tetradoma) was prepared by fusing hybridomas producing monoclonal antibody to acetyl-aminofluorene with hybridomas producing antibody against calf intestine alkaline phosphatase. The tetradoma line established secreted immunoglobulin manifesting parental and bispecific binding characteristics. Bispecific monoclonal antibody was purified and used for a one-step immunodetection assay of non-radioactive DNA and RNA probes. The immunoassay developed was able to detect 5 pg DNA within 2 h and gave low background noise.
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Affiliation(s)
- J Auriol
- Laboratoire de Prédéveloppement des Sondes, Institut Pasteur, Paris, France
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