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Journal ArticleDOI

Large-Scale Identification, Mapping, and Genotyping of Single-Nucleotide Polymorphisms in the Human Genome

TLDR
A large-scale survey for SNPs was examined by a combination of gel-based sequencing and high-density variation-detection DNA chips, and a genetic map was constructed showing the location of 2227 candidate SNPs.
Abstract
Single-nucleotide polymorphisms (SNPs) are the most frequent type of variation in the human genome, and they provide powerful tools for a variety of medical genetic studies. In a large-scale survey for SNPs, 2.3 megabases of human genomic DNA was examined by a combination of gel-based sequencing and high-density variation-detection DNA chips. A total of 3241 candidate SNPs were identified. A genetic map was constructed showing the location of 2227 of these SNPs. Prototype genotyping chips were developed that allow simultaneous genotyping of 500 SNPs. The results provide a characterization of human diversity at the nucleotide level and demonstrate the feasibility of large-scale identification of human SNPs.

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Citations
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Journal ArticleDOI

Correcting for ascertainment biases when analyzing SNP data: applications to the estimation of linkage disequilibrium.

TL;DR: It is shown that the ascertainment scheme has a large effect on the estimation of linkage disequilibrium and recombination, and some methods of correcting for ascertainment biases when estimating recombination rates from SNP data are described.
Journal ArticleDOI

Insertion-deletion polymorphisms in 3' regions of maize genes occur frequently and can be used as highly informative genetic markers.

TL;DR: This paper clearly demonstrates that the resequencing of 3′ EST sequence and the discovery and mapping of indel markers will position corresponding expressed genes on the genetic map.
Journal ArticleDOI

Flow cytometry-based minisequencing: a new platform for high-throughput single-nucleotide polymorphism scoring.

TL;DR: This work has developed a sensitive and rapid flow cytometry-based assay for the multiplexed analysis of SNPs based on polymerase-mediated primer extension, or minisequencing, using microspheres as solid supports, and genomic analysis using multiplexing microsphere arrays (GAMMArrays), enables the simultaneous analysis of dozens, and potentially hundreds ofSNPs per sample.
Journal ArticleDOI

Distinguishing human ethnic groups by means of sequences from Helicobacter pylori: Lessons from Ladakh

TL;DR: It is shown that DNA sequences from Helicobacter pylori, a bacterium that colonizes the stomachs of most humans and is usually transmitted within families, can distinguish between closely related human populations and are superior in this respect to classical human genetic markers.
Journal ArticleDOI

Surface plasmon resonance applications in clinical analysis

TL;DR: The state of the art of clinical target detection with SPR-based biosensors in complex matrices as well as in standard solution when innovative approaches or advanced instrumentations were employed for improved detection are reported.
References
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Journal ArticleDOI

Light-generated oligonucleotide arrays for rapid DNA sequence analysis

TL;DR: It is reported here how modern photolithographic techniques can be used to facilitate sequence analysis by generating miniaturized arrays of densely packed oligonucleotide probes, which can then be applied to parallel DNA hybridization analysis, directly yielding sequence information.
Journal ArticleDOI

Extensive polymorphisms observed in HIV–1 clade B protease gene using high–density oligonucleotide arrays

TL;DR: In the first clinical application of high–density oligonucleotide arraysequencing, the sequences of 167 viral isolates from 102 patients have been determined and the DNA sequence of USA HIV–1 clade B proteases was found to be extremely variable.
Journal ArticleDOI

Detection of heterozygous mutations in BRCA1 using high density oligonucleotide arrays and two-colour fluorescence analysis.

TL;DR: Fourteen of fifteen patient samples with known mutations were accurately diagnosed, and no false positive mutations were identified in 20 control samples, suggesting DNA chip–based assays may provide a valuable new technology for high–throughput cost–efficient detection of genetic alterations.
Journal ArticleDOI

The use of a genetic map of biallelic markers in linkage studies

TL;DR: How polymorphic and densely spaced biallelic markers need to be for extraction of most of the inheritance information from human pedigrees is examined, and a map of 700–900 moderately polymorphic bialLElic markers is concluded to be equivalent to the current 300–400 microsatellite marker sets.
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