Genes Abo
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. A Genetic Locus Having TRANS and CONTIGUOUS CIS Functions That Control the Disproportionate Replication of Ribosomal RNA Genes in DROSOPHILA MELANOGASTER
The results of deficiency mapping experiments reveal the presence of a compensatory response (cr+) locus that is located distal to the cluster of ribosomal RNA (rRNA) genes and is responsible for disproportionately replicating these genes when cr+ locus is present in a single dose, as in X/O males or X/sc4-sc 8 females. The cr+ locus is novel in that it exhi
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14. Evidence for genetic heterogeneity in tuberous sclerosis.
The question of genetic heterogeneity in tuberous sclerosis (TSC) was addressed by genetic linkage studies in eight affected families using nine polymorphic markers (EFD126.3, MCT136, ABO, ABL, AK1, and MCOA12 from distal 9q, and PBGD, MCT128.1, and 1CJ52.208M from distal 11q). The data as a whole supported a TSC locus on distal 9q, the peak lod score on mul
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15. Metastability of Helicobacter pylori bab adhesin genes and dynamics in Lewis b antigen binding
Heterogeneity among Helicobacter pylori strains in gastric epithelial adherence is postulated to contribute to pathogen fitness in the physiologically diverse human population. H. pylori adherence to ABO and Lewis b (Leb) blood group antigens in the human stomach is mediated by the blood group antigen-binding adhesin BabA. Approximately 70% of Swedish and U.
National Academy of Sciences.
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16. Molecular basis for H blood group deficiency in Bombay (Oh) and para-Bombay individuals.
The penultimate step in the biosynthesis of the human ABO blood group oligosaccharide antigens is catalyzed by alpha-(1,2)-fucosyltransferase(s) (GDP-L-fucose: beta-D-galactoside 2-alpha-L-fucosyltransferase, EC 2.4.1.69), whose expression is determined by the H and Secretor (SE) blood group loci (also known as FUT1 and FUT2, respectively). These enzymes con
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17. DNA Interaction and Phosphotransfer of the C4-Dicarboxylate- Responsive DcuS-DcuR Two-Component Regulatory System from Escherichia coli
The DcuS-DcuR system of Escherichia coli is a two-component sensor-regulator that controls gene expression in response to external C4-dicarboxylates and citrate. The DcuS protein is particularly interesting since it contains two PAS domains, namely a periplasmic C4-dicarboxylate-sensing PAS domain (PASp) and a cytosolic PAS domain (PASc) of uncertain functio
American Society for Microbiology.
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18. Repression of the traM gene of plasmid R100 by its own product and integration host factor at one of the two promoters.
Plasmid R100 codes for the traM gene, which is required for DNA transfer and whose product has been shown to bind to the four sites, called sbmA to sbmD, upstream of traM. To determine whether the TraM protein regulates the expression of traM, we constructed the plasmids carrying various portions of the region upstream of the initiation codon ATG for traM, w