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Transcript of Copyright OpenHelix. No use or reproduction without express written consent1.
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Copyright OpenHelix. No use or reproduction without express written consent 1
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dbGaP
The Database of Genotypes and Phenotypes
Materials prepared by:
Cynthia Perreault-Micale, Ph.D.
Dorothy S. Reilly, Ph.D.
www.openhelix.com
Updated: Q4 2010Version 2
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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http://www.ncbi.nlm.nih.gov/gap
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Many Contribute dbGaP Studies
Launched Dec. 2006 Major contributors include: National Eye Institute’s Age Related Eye Disease Study, The Genetic Association Information Network (GAIN), & many more!
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Data Content & Organization
Many types of studies are included
2 types of access - open & controlled
Open access: studies, documents, variables, analyses
Controlled access: de-identified phenotypes & genotypes for individual study subjects
Specific authorization process for controlled access requests
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Multiple Data Types - Stable Identifiers
phs = Studies
phd = study Documents
phv = phenotypic Variables
pha = genotype-phenotype Analyses
pht = dataseTs
Study number phs000007.v1.p1
“v” data version “p” participant
set version
Unique identifiers assigned
These numbers increase whendata changes
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Citing a Study in dbGaPBMC Medical Genetics 8:S7, 2007
http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=17903306
URL with uniquestudy ID number
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dbGaP Homepage Resources
http://www.ncbi.nlm.nih.gov/gap
ImportantLinks
GettingStarted
Access to dbGaP Data
Tutorial, Overview, FAQs & Submission instructions Apply for Controlled Access, FTP site, Browse Studies RSS Feed, Conduct Codes, Security Procedures & Contact Us
Start Searches& Help
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dbGaP Homepage Additional Resources
List ofLatest Studies
GettingStarted
Contact
Categorized list of NCBIresources
Popularresources
Featuredresources
NCBIinformation
Additionalaccess
Genetics &Medicine
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NCBI Homepage - The Interlinked Entrez Network
http://www.ncbi.nlm.nih.gov
dbGaP
All Databases
dbGaP results
An Entrez Global Query - results in all databases
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Results Utilize Many Handy Entrez Features
Manyhelpful
tools & links
Search box & menu
Display Settings Categorized results
For more information about Entrez search functions:• OpenHelix Entrez Overview tutorial (www.openhelix.com) • NCBI Entrez documentation (http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=helpentrez&part=EntrezHelp; http://www.ncbi.nlm.nih.gov/Entrez/tutor.html)
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dbGaP Credits
Nature Genetics 39:1181, 2007http://www.nature.com/ng/journal/v39/n10/full/ng1007-1181.html
Nature Genetics 39:1045, 2007http://www.nature.com/ng/journal/v39/n9/full/ng2127.html
Many additional sources of information
Click FAQ link on homepage
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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Accessing Studies from dbGaP Homepage
http://www.ncbi.nlm.nih.gov/gap
List AllStudies
Browse AllStudies
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Browsing Studies from dbGaP Homepage
Resulttabs
Choose how many items
per page
Click to returnto homepage
Next page of results
Click Apply
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Browsing Studies - Study Information
Colored icons indicateVariable, Document &
Analysis Reports available
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Browsing Studies - More Study Information
Many typesof studies
A variety of study types: Exome Sequencing,
Family, Single Patient, Longitudinal, and more.
Parent-Offspring trios: Data are collected from parent-
parent-offspring sets.
Case-Control Studies: Identify individuals with a disease of interest and a control group without the disease. The frequency or levels of an attribute [eg,
specific genotype] are compared between these
groups.
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Browsing Studies - Right Side Options
Filtersinactive
Find related data
Recent activity
HandyLinks
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Browsing Other Record Types
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http://www.ncbi.nlm.nih.gov/gap
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Basic Searching from Homepage
prostate cancer
Our basic search example: prostate cancer
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Basic Search Results
Number of results & access by record type
Search term
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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Study Report Access
phs000130
phs = Studies
Search Results:
Enter Study ID
phs000130
Click here
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Study Report
NIDDK IBD Genetics Consortium Crohn’s Disease Genome-Wide Association Study
Accession: phs000130.v1.p1
We will enlarge each section next
auth. data access req.
study name, #,navigation tabs
Search within study,
Associated Substudies, if available
description
auth. access data
public data (FTP)
criteria, molecular
history, publications
diseases (MeSH)
study attribution
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Study Report: Description
Linked Logos
May also see studyversion history
Navigation tabs
Study type &number of participants
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Study Report: Data Access
Authorized access data- rules for this study
Public data - FTP
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Study Report: Criteria & Molecular
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Study Report: Study History & Publications
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Study Report:Diseases, Attribution, Access
Research Use Statements
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Sample Variable Report phv = phenotypic Variables
Access
Click here
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Sample Document Report phd = study Documents
Navigation
Document Name& Accession
Search
Study Name& Accession
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Associated Datasets
Name & Accession
Similar organization
pht = dataseTs
Description
Dataset type
Dataset Summary
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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Analysis Methods
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Sample Analysis Report
Analysis Plots
http://gmed.bu.edu/about/index.html“Please note that all associations. . . are considered "candidate associations" pending replication in additional studies.”
Details
Publications
pha001340.1
Enter ID into homepage search box
pha = genotype-phenotype Analyses
Study version history
Browser
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Analysis Report & Genome BrowserdbSNP homepage:http://www.ncbi.nlm.nih.gov/projects/SNP/
Click here
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Analysis Browser
zoomscroll
Controls
NCBI Service Utility menu: SNP Genotype, Entrez SNP,
Sequence Viewer,Map Viewer
HTML view to maximize, print or save
Toggleexpanded
or compacted
Close that data track
Highlight top ten SNP hits
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Analysis Browser - More Features
Other buttons allow you to close particular windows Mouse over many items for tool tips & links
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Browse SNPs
sample size, P-value rankallele freq., call rateLink to dbSNP record
Scroll over
Mouse over bin to see SNP record
highlightedGWAS catalog page# in bin = # markers
tested, + for 10 or more
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Analysis Browser - Customizing Your Display
We will remove the GWAS Catalog Chromosome 3 SNP Bins reference track & highlight the top ten SNPs on the Sequence Viewer
Clickhere
One referencetrack removed
Top ten SNPshighlighted
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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Advanced Searching TIPS
Use the Boolean operators AND, OR and NOT. They must be capitalized.
Words can be truncated with * (asterisk): fibro*
Add quotes, as in “fibroblast growth factor”, for complete phrase, exact word order
(Use with caution, can be TOO restrictive)
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http://www.ncbi.nlm.nih.gov/gap
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Advanced Search Example
heart rate AND exercise
Our advanced search example: heart rate AND exercise
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Search Results: Heart Rate AND Exercise
Limits: exclude or include specific types of records
Advanced search: similar functions, & several more
Click to open the dbGaP Advanced Search form
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dbGaP Advanced Search Form
Limits, SearchDetails, Help
Back to homepage
Search History
Search Builder
Help
Help
Multiple easy options in a single query form
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dbGaP Advanced Search - Search Builder
Click Searchor Preview
Term added toSearch box
Click here
heart rate
Choose Boolean
Repeat steps as many times as needed to build query We will add the term “AND exercise[Variable]”
Search Builder
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dbGaP Advanced Search - Search Builder Results
Query: (heart rate[Variable]) AND exercise[Variable]
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dbGaP Advanced Search - Search History
Search History
Most RecentQueries
Click to access
Combine, view, delete or save previous searches
#1 AND #2
Click Searchor Preview
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Click here to learn more about My NCBICopyright OpenHelix. No use or reproduction without express written consent 48
Saving Searches in My NCBI
Register & log in to My NCBI
Click here to save search in My NCBI
About My NCBISave
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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Summary of NCBI’s dbGaP
Many groups contribute data
http://www.ncbi.nlm.nih.gov/gap
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Data Organized into Uniform Report Types
Stable identifiers assigned
Genome browserprovided
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NCBI dbGaP Agenda
Introduction & Credits Basic Searching & Browsing Report Types Analysis Reports Advanced Searching Summary Exercises
dbGaP: www.ncbi.nlm.nih.gov/gap
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