61 research outputs found
Public Policies to Facilitate Clusters, Background: Rationales and policy practices in international perspective
No full textPublic Policies to Facilitate Clusters, Background: Rationales and policy practices in international perspective
No full textThuriaux-Hennebert (A.) : Inventaire, papiers Charles Lemaire, capitaine-commandant (1863-1925)
No full textNardin Jean-Claude. Thuriaux-Hennebert (A.) : Inventaire, papiers Charles Lemaire, capitaine-commandant (1863-1925). In: Revue française d'histoire d'outre-mer, tome 57, n°208, 3e trimestre 1970. p. 366
Ouvrages d'histoire sur l'Afrique centrale, de R. Cornevin et de A. Thuriaux-Hennebert
No full textCabot Jean. Ouvrages d'histoire sur l'Afrique centrale, de R. Cornevin et de A. Thuriaux-Hennebert. In: Annales de Géographie, t. 75, n°412, 1966. p. 739
Thuriaux-Hennebert (A.) : Inventaire, papiers Charles Lemaire, capitaine-commandant (1863-1925)
No full textNardin Jean-Claude. Thuriaux-Hennebert (A.) : Inventaire, papiers Charles Lemaire, capitaine-commandant (1863-1925). In: Revue française d'histoire d'outre-mer, tome 57, n°208, 3e trimestre 1970. p. 366
Thuriaux-Hennebert (A.) : Inventaire papiers Albert Sillye, capitaine-commandant (1867-1929) et Inventaire papiers Emmanuel Muller, général (1879-1956)
No full textNardin Jean-Claude. Thuriaux-Hennebert (A.) : Inventaire papiers Albert Sillye, capitaine-commandant (1867-1929) et Inventaire papiers Emmanuel Muller, général (1879-1956). In: Revue française d'histoire d'outre-mer, tome 65, n°240, 3e trimestre 1978. p. 451
A universally conserved region of the largest subunit participates in the active site of RNA polymerase III.
No full textThe RPC31 gene of Saccharomyces cerevisiae encodes a subunit of RNA polymerase C (III) with an acidic tail.
Get PDFInternational audienceThe RPC31 gene encoding the C31 subunit of Saccharomyces cerevisiae RNA polymerase C (III) has been isolated, starting from a C-terminal fragment cloned on a lambda gt11 library. It is unique on the yeast genome and lies on the left arm of chromosome XIV, very close to a NotI site. Its coding sequence perfectly matches the amino acid sequence of two oligopeptides prepared from purified C31. It is also identical to the ACP2 gene previously described as encoding an HMG1-like protein (W. Haggren and D. Kolodrubetz, Mol. Cell. Biol. 8:1282-1289, 1988). Thus, ACP2 and RPC31 are allelic and encode a subunit of RNA polymerase C. The c31 protein has a highly acidic C-terminal tail also found in several other chromatin-interacting proteins, including animal HMG1. Outside this domain, however, there is no appreciable homology to any known protein. The growth phenotypes of a gene deletion, of insertions, and of nonsense mutations indicate that the C31 protein is strictly required for cell growth and that most of the acidic domain is essential for its function. Random mutagenesis failed to yield temperature-sensitive mutants, but a slowly growing mutant was constructed by partial suppression of a UAA nonsense allele of RPC31. Its reduced rate of tRNA synthesis in vivo relative to 5.8S rRNA supports the hypothesis that the C31 protein is a functional subunit of RNA polymerase C
Identification of an ortholog of the eukaryotic RNA polymerase III subunit RPC34 in Crenarchaeota and Thaumarchaeota suggests specialization of RNA polymerases for coding and non-coding RNAs in Archaea.
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80405.pdf (Publisher’s version ) (Open Access)One of the hallmarks of eukaryotic information processing is the co-existence of 3 distinct, multi-subunit RNA polymerase complexes that are dedicated to the transcription of specific classes of coding or non-coding RNAs. Archaea encode only one RNA polymerase that resembles the eukaryotic RNA polymerase II with respect to the subunit composition. Here we identify archaeal orthologs of the eukaryotic RNA polymerase III subunit RPC34. Genome context analysis supports a function of this archaeal protein in the transcription of non-coding RNAs. These findings suggest that functional separation of RNA polymerases for protein-coding genes and non-coding RNAs might predate the origin of the Eukaryotes
Parameters in gene conversion: An algebraic analysis of the hybrid DNA model at the gray locus of Sordaria fimicola.
Get PDFWe have extended previous algebraic analyses of aberrant segregation at the gray locus of Sordaria fimicola (Whitehouse, 1965; Emerson, 1966; Fincham, Hill & Reeve, 1980) to the more complex situation where aberrant segregations are detected in three factor crosses involving two flanking markers. This algebra has been applied to seven gray alleles which have been extensively characterized for their pattern of gene conversion and postmeiotic segregation by Kitani & Olive (1967). It is based on seven major types of aberrant segregation which can be distinguished in the presence of flanking markers spanning the converting site, and allows us to use up to six parameters to describe hDNA formation and mismatch repair. We present solutions which predict a spectrum of aberrant segregation fitting the experimental data at the P > 0·05 level for six of the seven alleles tested. They are consistent with the following properties of hDNA at the gray locus: (1) the single stranded DNA transferred during hDNA formation has always the same chemical polarity. (2) hDNA is mostly, if not entirely, symmetric, and its probability of formation is constant over the whole gene. (3) Disparity in aberrant segregation is mostly, if not entirely due to disparity in mismatch repair
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