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Affymetrix CytoScan 750K and HD data for developmental delay and/or physical disability phenotypes samples

ABSTRACT: Affymetrix CytoScan 750K and HD data for developmental delay and/or physical disability phenotypes samples

PROVIDER: PRJNA493801 | ENA |

REPOSITORIES: ENA

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Affymetrix CytoScan 750K and HD data for developmental delay and/or physical disability phenotypes samples

Project description:Chromosomal copy number variations (CNV) have been associated with various neurological and developmental disorders and chromosomal microarray (CMA) is a method of choice to diagnose Copy Number Gain/Loss syndromes. Recently, next-generation sequencing (NGS)-based low-coverage whole genome sequencing (LC-WGS) has been applied to detect Copy Number Gain/Loss syndromes. This dataset is intended to be used as a “Golden standard data set” for development of LC-WGS analysis method. It consists of patients (n=63) who have a mental delay and/or physical disability phenotype and normal (n=20) phenotype.

2018-09-29 | GSE120624 | GEO

CytoScan 750K array data for the ataxia patient's sample

Project description:CytoScan 750K array was performed for the detection of CNV associated with the patient's phenotype CytoScan 750K array was performed according to the manufacturer's directions on DNA extracted from peripheral blood sample.

2021-08-07 | GSE181612 | GEO

Affymetrix CytoScan 750K array data for a parthenogenetic SMA human embryonic stem cell line

Project description:A diploid 46(XX) human embryonic stem cell (HESC) line affected by Spinal muscular atrophy type 1 (SMA) due to homozygosity for a common deletion in the SMN1 gene was derived. By characterizing the methylation status of three different imprinted loci (MEST, SNRPN and H19) and carrying out genome-wide SNP analysis, we provide evidence that this cell line was established from the activation of a mutant haploid oocyte through parthenogenesis, resulting in homozygote diploidization of the entire genome. Affymetrix CytoScan 750K array analysis was performed according to the manufacturer's directions on DNA extracted from tissue culture. Copy number and LOH analysis of the Affymetrix CytoScan 750K array was performed for the SMA HESC line.

2015-09-01 | E-GEOD-72284 | biostudies-arrayexpress

CytoScan 750K array data for the ataxia patient's sample

Project description:CytoScan 750K array data for the ataxia patient's sample

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CytoScan HD array for multiple myeloma samples

Project description:Affymetrix CytoScan HD array for newly diagnosed multiple myeloma patients.

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Affymetrix CytoScan 750K data for validation of the BoBs/CNV-seq comparison study

Project description:Affymetrix CytoScan 750K data for validation of the BoBs/CNV-seq comparison study

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affy2sv: an R package to pre-process Affymetrix CytoScan HD and 750K arrays for SNP, CNV, inversion and mosaicism calling.

Project description:BackgroundThe well-known Genome-Wide Association Studies (GWAS) had led to many scientific discoveries using SNP data. Even so, they were not able to explain the full heritability of complex diseases. Now, other structural variants like copy number variants or DNA inversions, either germ-line or in mosaicism events, are being studies. We present the R package affy2sv to pre-process Affymetrix CytoScan HD/750k array (also for Genome-Wide SNP 5.0/6.0 and Axiom) in structural variant studies.ResultsWe illustrate the capabilities of affy2sv using two different complete pipelines on real data. The first one performing a GWAS and a mosaic alterations detection study, and the other detecting CNVs and performing an inversion calling.ConclusionBoth examples presented in the article show up how affy2sv can be used as part of more complex pipelines aimed to analyze Affymetrix SNP arrays data in genetic association studies, where different types of structural variants are considered.

| S-EPMC4438530 | biostudies-literature

Affymetrix CytoScan HD array data of iPSCs and iPSC-derived-NSPCs

Project description:Cytoscan HD analysis on DNA samples from iPSCs, iPS-derived NSPCs

2016-09-14 | GSE77995 | GEO

Affymetrix CytoScan HD array data for patient with Intellectual Disabilities

Project description:Standard cytogenetic GTG-banding analysis (550 bands) revealed an interstitial deletion on 15q21q22 chromosomal region. Refinement of the 15q21.2 deletion intervals was conducted using aCGH (Cytoscan HD, Affymetrix) on DNA samples from the patient. This assay revealed the presence of submicroscopic alterations on chromosomes 1, 9 and 15. The result was arr[hg19] 9p24.1(6,619,823-6,749,335)x3, 1q44(248,688,586-248,795,277)x1, 15q21.2q22.2(50,848,301-61,298,006)x1. Affymetrix CytoScan HD arrays were performed according to the manufacturer's directions on DNA extracted from peripheral blood samples.

2014-06-21 | E-GEOD-58694 | biostudies-arrayexpress

two amniotic fluid sample performed by affymetrix cytoscan HD

Project description:The uploaded results of two samples were SNParray results in our research of which fetal CNVs were detected by noninvasive prenatal test (NIPT) and confirmed by microarray results. Sample ZNY162 received prenatal diagnosis because at 17 gestational week the pregnant woman received NIPT showing 23Mb microdeletion in Chr18. Later ultrasound examination showed developmental anomalies of feet and the 13th ribs. The pregnant woman received amniocentesis and SNParray at the 21st gestational week, which confirmed the existence of the microdeletion in Chr18. DNA was extracted from 10ml amniotic fluid and tested by Affymetrix CytoScan HD array to detect CNVs in whole genome, showing arr 18q22.3q23(69,461,933-78,014,123) Ã1. Sample LMQ155 received prenatal diagnosis because of advanced maternal age and NIPT result of a 2.29Mb microduplication in Chr13 at 15 gestational week. Amniocentesis was performed at the 17th gestational week. Affymetrix CytoScan HD array were used to detect fetal CNVs in whole genome, which showed arr 13q21.2(60,399,612-61,730,194) Ã3 that was consistent with NIPT result.

2016-11-16 | E-MTAB-4738 | biostudies-arrayexpress

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