نتایج جستجو برای: frequency of allele
تعداد نتایج: 21194166 فیلتر نتایج به سال:
Estimation of Variance Components and Genome Partitioning According to Minor Allele Frequency for Quantitative Traits in Sheep
We present a Web-accessible database (ALFRED) that allows public access to gene frequency data for a diverse set of population samples and genetic systems. The data in ALFRED are modeled based on the experience and needs of a single laboratory, but with the expectation that the database will meet the needs of a much broader scientific community that needs population-specific gene frequency esti...
The allele frequency of a neutral variant in a population is pushed either upward or downward by directional selection on a linked beneficial mutation ("selective sweeps"). DNA sequences sampled after the fixation of the beneficial allele thus contain an excess of rare neutral alleles. This study investigates the allele frequency distribution under selective sweep models using analytic approxim...
Abstract Background and Objectives Histocompatibility antigens (HLAs) have high genetic diversity and their frequency can be diverse in different ethnicities. Therefore, the determination of these antigens in different ethnicities can provide data used in the expansion of centers for the registration of stem cell donors. Materials and Methods In this descriptive study, donor DNA was extracted ...
Background: Human leukocyte antigen E is a member of non-classical HLA class I. Interaction between HLA-E molecule on the target cells and inhibitory CD94/NKG2A receptor on the cell surface of natural killer (NK) cells has an important role in the regulation of immune system against pathogens; therefore different cell surface expression of HLA-E molecule plays an important role in host resistan...
UNLABELLED In a genome-wide association study (GWAS) of an admixed population, such as Hispanic Americans, ancestry-specific allele frequencies can inform the design of a replication GWAS. We derive an EM algorithm to estimate ancestry-specific allele frequencies for a bi-allelic marker given genotypes and local ancestries on a 3-way admixed population, when the phase of each admixed individual...
distribution of il-28b genotypes in patients with hepatitis c and healthy individuals in jahrom city
aim : the purpose of this study was to compare the distribution of interleukin (il)-28b genotypes between iranian healthy individuals and patients with chronic hepatitis c based on the genotype. background : polymorphisms in the region of il-28b gene have been identified as the strongest genetic pretreatment predictor of sustained virological response (svr) in hepatitis c infection. patients an...
The deluge of data from the human genome project (HGP) presents new opportunities for molecular anthropologists to study human variation through the promise of vast numbers of new polymorphisms (e.g., single nucleotide polymorphisms or SNPs). Collecting the resulting data into a single, easily accessible resource will be important to facilitate this research. We created a prototype Web-accessib...
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