• Data sets
• Strain coverage
• Annotation notes
A collection of 10+ expression microarray data sets (strain surveys) as well as functionality such
as correlations with phenotypes and strain outlier analyses.
See also MGI's GXD database
which has expression data and images from many other types of study designs.
MPD requirements for gene expression data: strain survey of 15 or more strains; sexes segregated; 3+ biological replicates preferred.
Treatment-control and other multi-cohort studies are accessioned as multiple data sets and can be analyzed using the differential
analysis tool below.
Starting with a particular gene or genomic region....
Click here to find your gene symbol or location, then
on the following detail page find the Gene Expression section. From there you can list probesets in the vicinity or:
• List phenotype measurements mathematically correlated to probesets in vicinity
• List strain outliers for probesets in vicinity
Starting with certain MPD phenotype measurements
list genes or locations with expression probesets correlated to your phenotypes.
Navigate to phenotype data of interest.
and click on Apply Tools. Select a few measurements then choose the "Correlations" mining tool.
Find expression vs. phenotype correlations on the fly ... click here
This will compute all pairwise correlations between selected inputs and produce a CSV file.
Analysis denominators are shown at the top of the result.
Starting with one or two strains of interest....
List locations where one or two selected strains are expression outliers relative to other strains tested.
Entire genome or a specific region. One, several, or all data sets.
Starting with two strains (or strain sets)...
List the genes / probesets where there's the most expression difference found between two selected strain sets, in one expression data set.
Differential expression analysis...
Studies are available comparing treatments vs. controls (high-fat diet, LPS, TCE, OxPAPC), or females vs. males, or comparison of cell types.
Phenotype strain survey data tagged to specific genes or proteins ... Click here
• Correlate to your own strain means
Type in your unpublished strain means and find expression data (probesets and genes) that are mathematically correlated.
• Download file of all computed correlations:
All computed correlations between probesets and MPD phenotype measurements with correlation p value ≥ 0.005
This file is available by request (firstname.lastname@example.org)
• Downloading expression data sets: Most expression data in MPD are available via public resources such as GEO.
However, if a particular type of download file is needed let us know, we may be able to help.
• Video tutorial sessions 7 and 14 include demonstrations of MPD's gene expression functionality.