Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

The Complete Genome of a Single Individual by Massively Parallel DNA Sequencing

ABSTRACT: The association of genetic variation with disease and drug response, together with improvements in nucleic acids technologies, has given great optimism for the impact of 'genomic medicine'. However, the formidable size of the diploid human genome has prevented the routine application of sequencing methods to deciphering complete individual human genomes, and has so far limited the realization of the full potential of genomics for science and human health. Working towards the goal of harnessing the power of genomics, we sequenced the diploid genome of a single individual, Dr. James D. Watson, using a massively-parallel method of sequencing in picoliter size reaction vessels. Here we report the results of genotyping the subject's DNA using an Affymetrix 500k GeneChip as well as copy number variations as reported by Agilent 244k comparative genomic hybridization arrays. Keywords: Genotyping, copy number variation (CNV), aCGH Affymetrix Gene Chip 500: Duplicate genomic DNA samples from JW's lymphocytes, 250 ng each, were annealed to the Affymetrix 250K NspI and 250K StyI arrays according to the manufacturer's protocol. Genotypes were determined using the Bayesian Robust Linear Model with Mahalanobis distance classifier (BRLMM) algorithm provided by Affymetrix in the GeneChip Genotyping Analysis software v. 4.0. Agilent 244k Whole Human Genome Oligo Microarray: 2 ug of DNA from experimental (JW) and reference samples were processed according to Agilent protocols with some modification. Reference samples were procured from the standard reference Caucasian male, Kleberg Cytogenetics Laboratory, Baylor College of Medicine (Chip 1) and Coriell number NA10851 (Chip 2).

ORGANISM(S): Homo sapiens

SUBMITTER: Jonathan Rothberg

PROVIDER: E-GEOD-10668 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Publications

The complete genome of an individual by massively parallel DNA sequencing.

Wheeler David A DA Srinivasan Maithreyan M Egholm Michael M Shen Yufeng Y Chen Lei L McGuire Amy A He Wen W Chen Yi-Ju YJ Makhijani Vinod V Roth G Thomas GT Gomes Xavier X Tartaro Karrie K Niazi Faheem F Turcotte Cynthia L CL Irzyk Gerard P GP Lupski James R JR Chinault Craig C Song Xing-zhi XZ Liu Yue Y Yuan Ye Y Nazareth Lynne L Qin Xiang X Muzny Donna M DM Margulies Marcel M Weinstock George M GM Gibbs Richard A RA Rothberg Jonathan M JM

Nature 20080401 7189

The association of genetic variation with disease and drug response, and improvements in nucleic acid technologies, have given great optimism for the impact of 'genomic medicine'. However, the formidable size of the diploid human genome, approximately 6 gigabases, has prevented the routine application of sequencing methods to deciphering complete individual human genomes. To realize the full potential of genomics for human health, this limitation must be overcome. Here we report the DNA sequence ...[more]

PMID: 18421352

Similar Datasets

Project description:For sporadic Burkitt lymphoma (BL) few genetic lesions are known besides the pathognomonic IG-MYC translocations. Thirtynine molecularly-defined BL were analyzed with high-resolution single-nucleotide polymorphism chips for genomic imbalances and uniparental disomy (UPD). Imbalances were correlated to transcript profiling and selected miRNA analysis. Translocations affecting the MYC locus were studied by fluoresence in situ hybridization. We detected 528 copy number changes, defining 29 recurrently imbalanced regions. 518 regions of UPD were found, but these were rarely recurrent. Combined imbalance mapping and transcript profiling revealed a profound correlation between copy number and expression. Several recurrent imbalances affected the MYC pathway: The miRNA-supercluster 17-92 was frequently gained and the transcription factor E2F2 was recurrently deleted. Molecular BL lacking MYC translocations showed MYC gains. Amplifications of the polymerase iota gene were associated with increased genomic instability. The present findings suggests that UPDs play no major role in the pathogenesis of BL, whereas some genes may contribute to BL development through gene dosage effects. Amplifications of the polymerase iota gene may be functionally linked with increased genomic instability in BL. The pattern and rarity of chromosomal changes detectable even at the high resolution employed here, together with aberrations of genes regulating MYC activity, support that deregulation of the MYC pathway is the major force driving BL pathogenesis, but show that this deregulation is more complex than previously known. Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from whole tissue. Copy number and LOH analysis of 500K SNP arrays was performed for 30 molecularly-defined Burkitt lymphomas. Genotyping was performed using the BRLMM-algorithm. Only a single 250k Chip was performed for nine additional Burkitts. 20 normal references (10 of those hybridized to nsp-chips) extracted from healthy blood donors, used as normals in the analysis in addition to the HapMap references provided by Affymetrix, are included in the set.

Project description:Methods for haplotyping and DNA copy number typing of single cells are paramount for studying genomic heterogeneity and enabling genetic diagnosis. Before analyzing the DNA of a single cell by microarray or next-generation sequencing, a whole-genome amplification (WGA) process is required that substantially distorts the frequency and composition of the cell’s alleles. As a consequence, haplotyping methods suffer from error-prone discrete SNP-genotypes (AA, AB, BB), and DNA copy number profiling remains difficult as true DNA copy number aberrations have to be discriminated from WGA-artifacts. Here, we developed a single-cell genome analysis method that reconstructs genome-wide haplotype architectures as well as the copy-number and segregational origin of those haplotypes by deciphering WGA-distorted SNP B-allele fractions, using a process we coin haplarithmisis. We demonstrate clinical precision of the method on single cells biopsied from human embryos to diagnose disease alleles genome wide, we advance and facilitate the detection of numerical and structural chromosomal anomalies in single cells, and can distinguish meiotic from mitotic segregation errors in a single assay. The samples of a reference family were applied for optimisation of single-cell genotyping using Affymetrix SNP-arrays prior to downstream analysis. Specifically, the reference family delivers genomic DNA samples isolated from peripheral blood of two siblings 'S1' and 'S2', the mother and father of these siblings, as well as of the maternal grandmother and grandfather. Of individuals ‘S1’ and ‘S2’, six EBV-transformed lymphoblastoid single cells were isolated of which three were whole-genome amplified using MDA and three using PicoPlex. These WGA-products were hybridized to Affymetrix NspI 250K SNP-arrays following the protocol as recommended by the company. Subsequently, the SNP-probe signals were interpreted by different genotyping algorithms (see data processing). Based on overall performance, it was decided to use the Dynamic Model (DM) for interpreting Affymetrix SNP-probe signals of single cells.

Project description:PHARC is a neurodegenerative disease comprising early onset cataract and hearing loss, retinitis pigmentosa, and involvement of both the central and peripheral nervous systems; including demyelinating sensorimotor polyneuropathy and cerebellar ataxia. Previously, we mapped this Refsum-like disorder to a 16 Mb region on chromosome 20. Here we report that mutations in the ABHD12 gene cause PHARC disease and we describe the clinical manifestations in a total of 19 patients from four different countries. The ABHD12 enzyme was recently shown to hydrolyse 2-arachidonoyl glycerol (2-AG), the main endocannabinoid lipid transmitter that acts on cannabinoid receptors CB1 and CB2. Our data therefore represent an example of an inherited disorder related to endocannabinoid metabolism. The endocannabinoid system is involved in a wide range of physiological processes including neurotransmission, mood, appetite, pain appreciation, addiction behaviour and inflammation, and several potential drugs targeting these pathways are in development for clinical applications. Our findings show that ABHD12 performs essential functions in both the central and peripheral nervous systems and the eye. Any future drug-mediated interference with this enzyme should consider the potential risk of long-term adverse effects. Homozygosity mapping using Affymetrix 250K SNP arrays were performed according to the manufacturer's directions on DNA extracted from peripheral blood samples. This accession number contains the data for families 1-5 plus 7 in the article. Supplementary files linked below. The region of interest on chromosome 20 was found using families 1 and 2. The patients in families 3,4 and 5 were then recruited and the patients were homozygous for the same region on chromosome 20 as those in families 1 and 2, showing that all these patients are distantly related. All affected are homozygous for the same mutation. The rest of the chromosomes fall outside the scope of our study. Mutations in ABHD12 Cause the Neurodegenerative Disease PHARC: An Inborn Error of Endocannabinoid Metabolism, Fiskerstrand et al. The American Journal of Human Genetics, 26 August 2010 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B8JDD-50W2K9M-3&_user=6129429&_coverDate=08%2F26%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000000150&_version=1&_urlVersion=0&_userid=6129429&md5=234296648f66debd3e2b08e795f2179f

Dataset Information

The Complete Genome of a Single Individual by Massively Parallel DNA Sequencing

Publications

The complete genome of an individual by massively parallel DNA sequencing.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure