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Mice lacking GPR103A expression display osteopenia. Analysis of mouse quantitative trait loci literature associated with bone mineral density suggested GPR103A ligand P518/Qrfp (chromosome 2qB) as a candidate osteoporosis gene. Promoter and coding regions of mouse P518/Qrfp were sequenced from genomic DNA obtained from the osteoporosis-prone strain SAMP6 and control strains SAMR1, A/J, AKR/J, BALB/c,...
The solute carrier family 22 (SLC22) is a large family of organic cation and anion transporters. These are transmembrane proteins expressed predominantly in kidneys and liver and mediate the uptake and excretion of environmental toxins, endogenous substances, and drugs from the body. Through a comprehensive database search we identified six human proteins not yet cloned or annotated in the reference...
Meibomian cell carcinoma (MCC) is a malignant tumor of the meibomian glands located in the eyelids. No information exists on the cytogenetic and genetic aspects of MCC. There is no report on the gene expression profile of MCC. Thus there is a need, for both scientific and clinical reasons, to identify genes and pathways that are involved in the development and progression of MCC. We analyzed the gene...
Terminal erythroid differentiation in mammals is the process whereby nucleated precursor cells accumulate erythroid-specific proteins such as hemoglobin, undergo extensive cellular and nuclear remodeling, and ultimately shed their nuclei to form reticulocytes, which then become mature erythrocytes in the circulation. Little is known about the mechanisms that enable erythroblasts to undergo such a...
Rubinstein–Taybi syndrome (RSTS) is a rare malformation disorder caused by mutations in the closely related CREBBP and EP300 genes, accounting respectively for up to 60 and 3% of cases. About 10% of CREBBP mutations are whole gene deletions often extending into flanking regions. Using FISH and microsatellite analyses as a first step in the CREBBP mutation screening of 42 Italian RSTS patients, we...
Hemophilia A is caused by mutations in the gene encoding factor VIII (F8) and is an important target for gene therapy. The F8 gene contains 26 exons spread over ∼186 kb and no work using the intact genomic locus has been carried out. We have constructed a 250-kb BAC carrying all 26 exons, the introns, and more than 40 kb of upstream and 20 kb of downstream DNA. This F8 BAC was further retrofitted...
The complexity of the somatic embryogenesis (SE) transcriptome suggests that numerous molecules are involved. To understand better the functional genomics of complex molecular systems during this important reprogramming process, we used bioinformatics and a pathway database to construct a draft network based on transcriptionally regulated SE-related genes, from functional genomics assays readout to...
The purpose of the present study was to identify genetic variants that confer susceptibility to dyslipidemia. A total of 5213 individuals from two independent populations were examined: Subject panel A comprised 3794 individuals who visited participating hospitals; subject panel B comprised 1419 community-dwelling elderly individuals. The genotypes for 100 polymorphisms of 65 candidate genes were...
Cross-species hybridization (CSH), i.e., the hybridization of a (target) species RNA to a DNA microarray that represents another (reference) species, is often used to study species diversity. However, filtration of CSH data has to be applied to extract valid information. We present a novel approach to filtering the CSH data, which utilizes spot characteristics (SCs) of image-quantification data from...
Several recent studies have shown that genes specifically expressed by the oocyte are subject to rapid evolution, in particular via gene duplication mechanisms. In the present work, we have focused our attention on a family of genes, specific to eutherian mammals, that are located in unstable genomic regions. We have identified two genes specifically expressed in the mouse oocyte: Khdc1a (KH homology...
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