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  1. Select the study whose data you want to analyze in the upper right portion of the caIntegrator page. You must select a study saved as a subject annotation study, but which has genomic data.
  2. Click GenePattern Analysis in the left sidebar of caIntegrator. This opens the GenePattern Analysis Status page.
  3. In the GenePattern Analysis Status page, select Comparative Marker Selection (Grid Service) from the drop down list and click New Analysis Job. This opens the Comparative Marker Selection Analysis page, shown in the following figure.
    ”Comparative Marker Selection analysis parameters”
  4. Select or define CMS analysis parameters, described in the following table. An asterisk indicates required fields. The default settings are valid; they should provide valid results.

     

    CMS Parameter

    Description

    Job Name*

    Assign a unique name to the analysis you are configuring.

    Preprocess Server*

    A server which hosts the grid-enabled data GenePattern PreProcess Dataset module. Select one from the list and caIntegrator will use the selected server for this portion of the processing.

    Comparative Server*

    A server which hosts the grid-enabled data GenePattern Comparative Marker Selection module. Select one from the list and caIntegrator will use the selected server for this portion of the processing.

    Annotation Queries and Lists*

    All subject annotation queries and gene lists with appropriate data for the analysis are listed. Select and move two or more queries from the All Available Queries panel to the Selected Queries panel using the Add > and Remove < buttons.
    <ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="1b205e93874f0390-aea5321a-479541e7-9a8d8ae6-f1de98f538faaf9a46d3aa90"><ac:plain-text-body><![CDATA[Note: The [SL] and [Q] prefixes to list names indicate "Subject Lists" or "Saved Queries". A "G" in the prefix indicates the list is Global. For more information, see [Creating a Gene or Subject List

    https://wiki.nci.nih.gov/x/FoDnAg#4-ViewingQueryResults-CreatingaGeneorSubjectList].

    ]]></ac:plain-text-body></ac:structured-macro>

    Filter Flag

    Variation filter and thresholding flag

    Preprocessing Flag*

    Discretization and normalization flag

    Min Change*

    Minimum fold change for filter

    Min Delta*

    Minimum delta for filter

    Threshold*

    Value for threshold

    Ceiling*

    Value for ceiling

    Max Sigma Binning*

    Maximum sigma for binning

    Probability Threshold*

    Value for uniform probability threshold filter

    Num Exclude*

    Number of experiments to exclude (max & min) before applying variation filter

    Log Base Two

    Whether to take the log base two after thresholding; default setting is "Yes".

    Number of Columns Above Threshold*

    Remove row if n columns are not >= than the given threshold
    In other words, the module can remove rows in which the given number of columns does not contain a value greater or equal to a user defined threshold.

    Test Direction*

    The test to perform (up-regulated for class0; up-regulated for class1, two sided). By default, Comparative Marker Selection performs the two-sided test.

    Test Statistic*

    Select the statistic to use.

    Min Std*

    The minimum standard deviation if test statistic includes the min std option. Used only if test statistic includes the min std option.

    Number of Permutations*

    The number of permutations to perform. (Use 0 to calculate asymptotic P-values.) The number of permutations you specify depends on the number of hypotheses being tested and the significance level that you want to achieve (3). The greater the number of permutations, the more accurate the P-value.
    Complete – Perform all possible permutations. By default, complete is set to No and Number of Permutations determines the number of permutations performed. If you have a small number of samples, you might want to perform all possible permutations.
    Balanced – Perform balanced permutations

    Random Seed*

    The seed for the random number generator.

    Smooth P-values

    Whether to smooth P-values by using the Laplace's Rule of Succession. By default, Smooth P-values is set to Yes, which means P-values are always less than 1.0 and greater than 0.0.

    Phenotype Test*

    Tests to perform when class membership has more than 2 classes: one versus-all, all pairs.
    Note: The P-values obtained from the one-versus-all comparison are not fully corrected for multiple hypothesis testing.

    Comparative Marker Selection analysis options
    Anchor
    RTF31353237303a205461626c65RTF31353237303a205461626c65
  5. When you have completed the form, click Perform Analysis.

caIntegrator takes you to the JobStatus/Launch page where you will see the job and its status in the Status column of the list, shown in the following figure.
”The progress of a GenePattern analysis that has been launched displays in the status column of page”Image Modified

  1. When the job is complete, the system displays a completion date on the GenePattern Analysis status page. Click the Download link. This downloads zipped result files to your local work station. The number of files and their file type will vary according to the processing. The results format is compatible with GenePattern visualizers and can be uploaded within GenePattern.

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You can configure GenePattern grid parameters for preprocessing the dataset in addition to PCA module parameters. For more information, see the GenePattern website.

To perform a PCA analysis, follow these steps:

  1. Select the study whose data you want to analyze in the upper right portion of the caIntegrator page. You must select a study with gene expression data.
  2. Click GenePattern Analysis in the left sidebar of caIntegrator. This opens the GenePattern Analysis Status page.
  3. Select Principal Component Analysis (Grid Service) from the drop down list and click New Analysis Job. This opens the Principal Component Analysis page, shown in the following figure.
    ”Principal Component Analysis parameters”
  4. Select or define PCA analysis parameters, described in the following table. An asterisk indicates required fields. You must enter a job name and select an annotation query, but you can accept the other default settings .for other options.

    PCA Parameters

    Description

    Job Name*

    Assign a unique name to the analysis you are configuring.

    Principal Component Analysis Server*

    A server which hosts the grid-enabled data GenePattern Principal Component Analysis module. Select one from the list and caIntegrator will use the selected server for this portion of the processing.

    Annotation Queries*

    All annotation queries display in this list. Select one or more of these queries to define which samples are analyzed using PCA. If you select more than one query, then the union of the samples returned by the multiple queries is analyzed.

    Cluster By*

    Selecting rows looks for principal components across all expression values, and selecting columns looks for principal components across all samples.

  5. If you want to preprocess the data set, click Enable the Preprocess Dataset. This opens an additional set of parameters, shown in the following figure and described in the following table. The preprocessing is executed prior to running the PCA.
    ”Parameters for pre-processing parameters for PCA”

    PCA Preprocessing Parameters

    Description

    Preprocess Server*

    A server which hosts the grid-enabled data GenePattern PreProcess Dataset module. Select one from the list and caIntegrator will use the selected server for this portion of the processing.

    Filter Flag

    Variation filter and thresholding flag

    Preprocessing Flag

    Discretization and normalization flag

    Min Change

    Minimum fold change for filter

    Min Delta

    Minimum delta for filter

    Threshold

    Value for threshold

    Ceiling

    Value for ceiling

    Max Sigma Binning

    Maximum sigma for binning

    Probability Threshold

    Value for uniform probability threshold filter

    Num Exclude

    Number of experiments to exclude (max & min) before applying variation filter

    Log Base Two

    Whether to take the log base two after thresholding

    Number of Columns Above Threshold

    Remove row if n columns no >= than the given threshold

  6. When you have completed the form, click Perform Analysis.
  7. When the job is complete, the system displays a completion date on the GenePattern Analysis status page. Click the Download link. This downloads zipped result files to your local work station. The number of files and their file type will vary according to the processing. The results format is compatible with GenePattern visualizers and can be uploaded within GenePattern.

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The GISTIC Module is a GenePattern tool that identifies regions of the genome that are significantly amplified or deleted across a set of samples. For more information, see GenePattern Module documentation.

To perform a GISTIC-supported analysis, follow these steps:

  1. Select the study whose data you want to analyze in the upper right portion of the caIntegrator page. You must select a study with copy number (either Affymetrix SNP or Agilent Copy Number) data.
  2. Click GenePattern Analysis in the left sidebar of caIntegrator. This opens the GenePattern Analysis Status page.
  3. In the GenePattern Analysis Status page, select GISTIC (Grid Service) from the drop down list and click New Analysis Job. This opens the GISTIC Analysis page, shown in the following figure.
    ”GISTIC analysis criteria”
  4. Select or define GISTIC analysis parameters, as described in the following table. You must indicate a Job Name, but you can accept the other defaults default settings, which are valid and should produce valid results. Asterisks identify required fields.

    GISTIC Parameters

    Description

    Job Name*

    Assign a unique name to the analysis you are configuring.

    GISTIC Service Type*

    Select whether to use the GISTIC web service or grid service and provide or select the service address. If the web service is selected, authentication information is also required

    GenePattern User Name/Password

    Include these to log into GenePattern for the analysis.

    Annotation Queries and Lists

    All annotation queries display in this list as well as an option to select all non-control samples. Select an annotation query if you wish to run GISTIC on a subset of the data and select all non-control samples if wish to include all samples.

    Select Platform

    This option appears only if more than one copy number platform exists in the study. Select the appropriate platform from the drop-down list ().

    Exclude Sample Control Set

    From the drop-down list, select the name of the control set you want to exclude from the analysis. Click None if that is applicable.

    Amplifications Threshold*

    Threshold for copy number amplifications. Regions with a log2 ratio above this value are considered amplified. Default = 0.1.

    Deletions Threshold*

    Threshold for copy number deletions. Regions with a log2 ratio below the negative of this value are considered deletions. Default = 0.1.

    Join Segment Size*

    Smallest number of markers to allow in segments from the segmented data. Segments that contain fewer than this number of markers are joined to the neighboring segment that is closest in copy number. Default = 4.

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    QV Thresh[hold]*

    Threshold for q-values. Regions with q-values below this number are considered significant. Default = 0.25.

    ]]></ac:plain-text-body></ac:structured-macro>

    Remove X*

    Flag indicating whether to remove data from the X-chromosome before analysis. Allowed values = {1,0}. Default = 1(yes).

    cnv File

    This selection is optional.
    Browse for the file. There are two options for the CNV file.
    Option #1 enables you to identify CNVs by marker name. Permissible file format is described as follows:
    A two column, tab-delimited file with an optional header row. The marker names given in this file must match the marker names given in the markers_file. The CNV identifiers are for user use and can be arbitrary. The column headers are:

  5. Marker Name*
  6. CNV Identifier*
    Option #2 enables you to identify CNVs by genomic location. Permissible file format is described as follows:
    A 6 column, tab-delimited file with an optional header row. The 'CNV Identifier', 'Narrow Region Start' and 'Narrow Region End' are for user use and can be arbitrary. The column headers are:
  7. CNV Identifier
  8. Chromosome
  9. Narrow Region Start
  10. Narrow Region End
  11. Wide Region Start
  12. Wide Region End|
  13. When you have completed the form, click Perform Analysis.
  14. When the job is complete, the system displays a completion date on the GenePattern Analysis status page. Click the Download link. This downloads zipped result files to your local work station. The number of files and their file type will vary according to the processing. The results format is compatible with GenePattern visualizers and can be uploaded within GenePattern.
  15. Additionally, upon completion of a successful GISTIC anaylsis, caIntegrator automatically displays the two gene lists that it generates in the Gene List Picker so that you can use them in a caIntegrator query or plot calculation. The lists are visible only to your userID. For more information, see #Choosing Genes. The genes will also display in Saved Copy Number Analyses in the left sidebar. See on Editing #Editing a GISTIC Analysis.
    Warning
    titleCaution

    If samples from a copy number source are deleted, the GISTIC job in which they are appear is also deleted.

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