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Data organisation

OpenCGA uses a two-level structure to organise datasets, these are Projects and Studies and are used to organise HGVA data and metadata:

  • Projects is the top-level and can contain one or more studiesProjects are specific for one species and assembly, all studies in a project are stored and indexed together in the same database and, therefore, they share the variant annotation. 
  • Study, in turn, represents a particular dataset which can contain samples metadata and cohorts, and obviously all the genomic variants. For example, the 1000 Genomes Project is defined as a study in OpenCGA and belongs to Reference GRCh37 project. You can also define cohorts in the studies, they are just a set of samples defined within a study. For example, populations and super-populations within The 1000 Genomes Project are defined as cohorts, so EUR, AMR or GBR are examples of cohorts.

You can get more information about data organisation at OpenCGA Catalog Data Management. Projects and Studies have a unique alias to ease their usage. Please, see below the full list and organisation of the currently available Projects and Studies (datasets) in HVGVA.

Studies


Projects name (alias)

Studies

HGVA Version/Date
NameAliasv1 (Dec. 2016)v2 (Jan. 2018)
Reference GRCh37
(reference_grch37)


1000 Genomes Project GRCh371kG_phase3Phase 3 2016-05Phase 3 2016-05
Exome Sequencing Project (ESP6500)ESP65002016-052016-05
Exome Aggregation Consortium (ExAC)EXAC0.3.1 2016-050.3.1 2016-05
Genome of the Netherlands (GoNL)GONLRelease 5 2016-05Release 5 2016-05
UK10K ProjectUK10k2016-052016-05
DiscovEHRDISCOVEHR-
Genome Aggregation Database (gnomAD Exomes)GNOMAD_EXOMES-
Genome Aggregation Database (gnomAD Genomes)GNOMAD_GENOMES-
Spanish Medical Genome Project (MGP)MGP2016-122016-12

Reference GRCh38

(reference_grch38)

1000 Genomes Project GRCh381kG_phase3Phase 3 2016-10Phase 3 2016-10
ESP6500ESP6500-
UK10K Project (*)UK10K-
DiscovEHR (*)DISCOVEHR-
Genome Aggregation Database (gnomAD Exomes) (*)GNOMAD_EXOMES-
Genome Aggregation Database (gnomAD Genomes) (*)GNOMAD_GENOMES-

Cancer GRCh37

(cancer_grch37)

QIMR Berghofer MelanomaQIMR_Berghofer_Melanoma2016-122016-12
Chronic Myeloid Leukemia - Russian Academy of Medical SciencesRAMS_CML2016-122016-12

Platinum

(platinum)

Illumina Platinumillumina_platinum2015-082015-08

(*) A liftover carried aout by Genomics England (GEL)


Variant annotation was carried out by the CellBase project. Please, check CellBase documentation for details on additional data sources: Data sources and species

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