Each of the TOPMed studies must register the Whole Genome Sequencing (WGS) component of their study at dbGaP. Many TOPMed studies already have a ‘parent’ study in dbGaP, which contains phenotypes, array and/or other molecular data; in this case, the TOPMed WGS component will be a ‘child’ study under the ‘parent’ study and it will receive a separate ‘phs’ accession number. Some TOPMed studies consist of a consortium of sub-studies; in this case each sub-study must register separately.
Initially, the TOPMed studies will each exist in a separate ‘exchange area’, which is a pre-release version of the dbGaP accession available only to TOPMed study investigators. After QC and preliminary analyses, these studies will be released for access by the scientific community using the standard dbGaP application process. The temporary exchange areas also serve as mechanisms for file exchange among the various TOPMed studies, and IRC.
Sequence data (bam files) for each study will be deposited to the Sequence Read Archive (SRA) by the TOPMed Informatics Research Center (IRC). Subsequently, the study investigator can access those files via their exchange area. No files can be deposited to dbGaP until registration is complete. Therefore, it is important to begin the registration process as soon as possible.
Overview of the main steps to complete registration:
- Contact NHLBI Genomic Program Administrator (GPA) to initiate study registration – study PI
- Obtain Institutional Certification – study PI with his/her institutional IRB and Signing Official
- Send Basic Study Information to GPA – PI
- Data Use Certification – NHLBI Program Officer or GPA
- Reviews information and approves further submissions- GPA
- Prepare the dbGaP Study Config and Data files – study PI
View dbGaP diagram and Flow Chart 1 (which has some TOPMed-specific elements). Refer to the dbGaP Submission Guide .