Software Elements
ProtoArray® Prospector consists of the following three general elements.
• A set of pre-defined numeric analyses that are automatically applied to the data derived
from an individual ProtoArray® microarray assay. These data are imported from an
image processing program in the form of a data file (e.g., a .gpr file). After executing the
pre-defined analyses a Single Microarray Result file (automatically named Analysis of
<source file name>.txt) is created for each microarray. This file can be conveniently
opened in Microsoft® Excel. Executing the pre-defined analyses also presents a general
summary in the ProtoArray® Prospector user interface of proteins from each microarray
that score as a “hit” and the average values used to make the call.
• Analyses allowing a series of cross-chip comparisons of two or more ProtoArray®
microarrays using the Single Microarray Result files created by the output of the analyses
described above. These comparisons collect and tabulate the different sets of features
that score as hits on individual ProtoArray® microarrays, and create a Comparison
Results file (automatically named Comparison Results <a textual description of the
comparison>.txt) that can also be conveniently opened in Excel.
• A user interface providing the tools needed to select the appropriate set of analyses or
comparisons based upon the biochemical application of interest (the Application Mode
is selected from the pull-down menu on the upper right); tools for navigating to files,
changing options relating to individual pre-defined analyses, etc.; viewers for display of
summaries and listings of previously performed analyses; and a variety of other
functions.
ProtoArray® Prospector is capable of automatically recognizing the specific type of ProtoArray®
microarray employed (e.g., human or control) and automatically applying the correct analysis
within a biochemical application. ProtoArray® Prospector will prompt the user for additional
input to successfully run the analysis. In addition, the pre-defined analyses contain a variety of
methods for evaluating and employing the signals from the controls features (e.g., the “Buffer”
features) that are typically present on ProtoArray® microarrays and used differently depending
on the selected application.
Software Workflow
The general workflow consists of the following steps.
1. Open ProtoArray® Prospector and set the Application Mode using the pull-down menu in
the upper right of the user interface.
2. Use the Analyze button to open single microarray data files in ProtoArray® Prospector and
the software analyzes the data. ProtoArray® Prospector automatically identifies features
scoring as a hit in the assay based on the default or user-selected criteria, presents a
summary of the results, and stores the results in a series of files.
3. To compare results across microarrays that have already been analyzed, select the Compare
button and then select the results you wish to compare. When started, the software
performs the selected comparison, presents a summary of the comparison, and stores the
results as files in a series of subfolders located within the ProtoArray® Prospector directory.
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