geWorkbench

Summary of changes in geWorkbench release 1.8.0

geWorkbench version 1.8.0 was released on November 5, 2009.

geWorkbench 1.8.0 adds one new component for calculating Gene Ontology enrichment using Ontologizer 2.0. It also has been updated to connect with the new caArray 2.3.0 Java API. However, geWorkbench 1.8.0 is not backward compatible with earlier versions of caArray.

The geWorkbench 1.8.0. release notes are available at Release Notes

The geWorkbench application can be downloaded from NCI's GForge site.

Major new features in 1.8.0

Gene Ontology Enrichment - A new pair of components, called GO Terms Analysis and GO Terms Visualization have been released. The Analysis component is built on Ontologizer 2.0. This component performs "overrepresentation analysis" on a supplied list of genes. It offers a number of advanced methods through the Ontologzier 2.0 engine.

Other changes in release 1.8.0

1. caArray - Update caArray component to use caArray 2.3.0 Java API. Please note that geWorkbench 1.8.0 is not compatible with earlier versions of caArray.
2. CNKB - The network graph generated by CNKB was only showing nodes centered about a focus node. Now all accepted nodes will be displayed.
3. Dataset History - Additions for several modules.
4. Grid Services - A number of fixes to grid services were made.
5. Marker Annotations - Fixed a problem with retrieving marker annotations when microarray data downloaded from caArray.
6. Mark-Us - JMOL dependency added for molecule display.
7. Promoter - Update JASPAR motifs to release of December 2007. -Note on October 12, 2009 a new version of JASPAR was released which made an incompatible change in the file format.
8. Promoter - component now displays logos using the "Schneider" method, including his "small-value correction", rather than using a previous "in-house" method.
9. Promoter - the displayed data now does not include the effects of the pseudo-count normalization process.
10. Promoter - Added ability to specify pseudocount or select previous hard-coded option of square root of number of sequences.
11. Promoter - Loaded TFs now are properly added to the list of available TFs.
12. Sequence Alignment (BLAST) - PFP filtering option removed
13. Usability fixes - operation of cancel buttons, progress bar.
14. Release Notes - Added specific installation instructions.

Summary of changes in geWorkbench release 1.7.0

Major new features in 1.7.0

• Marker Annotations - The Marker Annotations component now includes direct access to NCI Cancer Gene Index annotations. It supplies detailed literature-based annotations on a curated set of cancer-related genes.
• Grid Services - All geWorkbench grid services were updated to use caGrid v1.3, with caTransfer used for transferring large data sets.
• ARACNe2 - cellular regulatory network reverse engineering - This release includes a new version of ARACNe, called ARACNe2, from the lab of Andrea Califano at Columbia University. The new version adds the option to preprocess the user's dataset to obtain optimal runtime parameters. It also adds a new algorithm, Adaptive Partitioning, for calculating the mutual information between gene expression profiles. Adaptive partitioning is much faster and is considered to be more accurate than the previous algorithm.
• Component Configuration Manager (CCM) - The CCM allows individual components to be loaded and unloaded as desired, allowing geWorkbench to be customized to your needs.
• genSpace collaborative framework - discovery and visualization of workflows. Implemented user registration, preferences, and enhancements to function.

Newly released analysis components in 1.7.0

• MarkUs - The MarkUs component assists in the assessment of the biochemical function for a given protein structure. It serves as an interface to the Mark-Us web server at Columbia. Mark-Us identifies related protein structures and sequences, detects protein cavities, and calculates the surface electrostatic potentials and amino acid conservation profile.
• MRA - The Master Regulator Analysis component attempts to identify transcription factors which control the regulation of a set of differentially expressed target genes (TGs). Differential expression is determined using a t-test on microarray gene expression profiles from 2 cellular phenotypes, e.g. experimental and control.
• Pudge - Interface to a protein structure prediction server (developed in the lab of Barry Honig at Columbia University) which integrates tools used at different stages of the structural prediction process.
• SVM 3.0 (GenePattern) - Support Vector Machines for classification. Provides an interface to remote execution on a GenePattern server.

Other changes in release 1.7.0

• Analysis - Parameter saving implemented in all components. If current settings match a saved set, it is highlighted.
• ARACNe - improved description of DPI in Online Help.
• caArray - query filtering on Array Provider, Organism and Investigator implemented.
• caArray - can now add a local annotation file to caArray data downloads.
• caGrid - caGrid connectivity is now built directly in to supported components rather than being a separate component itself.
• caScript - The caScript editor is no longer supported.
• Color Mosaic - now interactive with the Marker Sets list and Selection set.
• Cytoscape - Upgrade to Cytoscape version 2.4 for network visualization and interaction.
• Cytoscape - Set operations on genes being returned from Cytoscape network visualizations, via right-click menu.
• Cytoscape - Changes to tag-for-visualization - e.g., now only one way, from marker set to Cytoscape, not vice-versa.
• File loading - PDB protein structure files can now be loaded directly from the PDB database by structure name.
• Gene Ontology file - the OBO 1.2 file format is supported.
• Marker Annotations - add export to CSV file.
• Marker Sets component - a set copy function was added.
• MINDy - many improvements to display and results filtering - including marker set filtering.
• Scatter Plot - Up to 100 overlapping points can be displayed in a single tooltip.
• Various - A number of components were refactored.
• Workspace saving - now works properly for all components.