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The green lineage is reportedly 1,500 million years old, evolving shortly after the endosymbiosis event that gave rise to early photosynthetic eukaryotes. In this study, we unveil the complete genome sequence of an ancient member of this lineage, the unicellular green alga Ostreococcus tauri (Prasinophyceae). This cosmopolitan marine primary producer is the(More)
The sense of smell is mediated by the initiation of action potential in olfactory sensory neurons during odor stimulation. However, little is known about odorant-olfactory receptor (OR) recognition mechanisms. In the present work, we identified the structural motifs of odorant molecules required to activate mouse OR912-93 by detection of the odorant(More)
The olfactory receptor (OR) gene cluster on human chromosome 17p13.3 was subjected to mixed shotgun automated DNA sequencing. The resulting 412 kb of genomic sequence include 17 OR coding regions, 6 of which are pseudogenes. Six of the coding regions were discovered only upon genomic sequencing, while the others were previously reported as partial(More)
The Infevers database (http://fmf.igh.cnrs.fr/infevers/) was established in 2002 to provide investigators with access to a central source of information about all sequence variants associated with periodic fevers: Familial Mediterranean fever (FMF), TNF Receptor Associated Periodic Syndrome (TRAPS), Hyper IgD Syndrome (HIDS), Familial Cold Autoinflammatory(More)
The effect of maternal age on the incidence of chromosomal abnormalities was investigated on a large sample of 3,042 in vitro unfertilized human oocytes II obtained from 792 women aged 19-46 years and participating in an in vitro fertilization program for various indications. The chromosomal analysis combined a gradual fixation of oocytes and an adapted(More)
BACKGROUND Although numerous studies have been published on the chromosomal constitution of in-vitro unfertilized human oocytes, data remain highly variable and controversial because of the size of oocyte samples, technical reservations and potential misinterpretation. METHODS A cytogenetic study was undertaken on 3042 unfertilized human oocytes recovered(More)
The incidence of chromosomal aneuploidy was analysed in 104 unfertilized human oocytes and 56 first polar bodies using a double-label fluorescence in-situ hybridization (FISH) procedure. Combinations of centromeric (or locus-specific) DNA probes and whole chromosome painting probes for chromosomes 9, 13, 16, 18, 21 and X were applied on oocyte preparations,(More)
We demonstrate that members of the olfactory receptor (OR) gene family are distributed on all but a few human chromosomes. Through FISH analysis, we show that OR sequences reside at more than 25 locations in the human genome. Their distribution is biased for terminal bands. Flow-sorted chromosomes were used to isolate 87 OR sequences derived from 16(More)
Chromatin immunoprecipitation after UV crosslinking of DNA/protein interactions was used to construct a library enriched in genomic sequences that bind to the Engrailed transcription factor in Drosophila embryos. Sequencing of the clones led to the identification of 203 Engrailed-binding fragments localized in intergenic or intronic regions. Genes lying(More)