# Biological Classification

The Biological Classification section of the Biomarker Details page summarizes all biological assertions previously created for the variant across all sources (i.e., My Knowledge Base, OncoKB, CKB).

If you have existing knowledge to upload to the system, refer to [Upload Assertions](https://help.connected.illumina.com/connected-insights/configure/du-assertion-upload).

You can filter assertions by source, diseases, and summary. Filter changes are saved and applied across variants within a case and can be reset if needed.

### Assertion Details

<table data-header-hidden><thead><tr><th width="196">Column</th><th>Description</th></tr></thead><tbody><tr><td><strong>Field Name</strong></td><td><strong>Description</strong></td></tr><tr><td>Directional Arrows</td><td>Opens to view the assertion summary and update date.</td></tr><tr><td>Biomarker</td><td>Indicates how the assertion is related to the variant (for example, specific amino acid change or specific exon change).</td></tr><tr><td>HRD</td><td>Indicates whether an assertion is associated with HRD positive or negative. This column is available for GIS and variants when the selected transcript is for BRCA1/2.</td></tr><tr><td>Classification</td><td>This column displays the classification as indicated by the knowledge base.</td></tr><tr><td>Type</td><td>The assertion type (for example, biological). For more information, refer to Interpret a Variant.</td></tr><tr><td>Disease</td><td>The disease associated with the classification.</td></tr><tr><td>Previously Reported Icon</td><td>Any cases where the assertion was previously reported.</td></tr><tr><td>Actions</td><td><p>This column contains the following available actions:<br>• Add to report<br>• Archive, if the assertion is in My Knowledge Base<br>• Copy to New Assertion, if the assertion is not in My Knowledge Base<br></p><p>To edit an assertion, add it to the report before editing. For more information, refer to <a href="../../inter-interp-a-variant/inter-manage-assertions#editing-assertions">Manage Assertions</a>.</p></td></tr></tbody></table>

## Available Knowledge Bases

### Memorial Sloan Kettering OncoKB

Connected Insights provides the Memorial Sloan Kettering OncoKB. For more information, refer to the [OncoKB website](https://www.oncokb.org/). See [this page](https://www.oncokb.org/therapeutic-levels) for classification descriptions.

The following from OncoKB is not supported:

* Non-compliant HGVS
* Unspecified positions: Epigenetic Silencing, ARv567es, AR-V7, DNMT3B7, vIII, vII, vV, TGFBR1\*6A, Overexpression, Wildtype, Promoter Hypermethylation, Hypermethylation, Kinase Domain Duplication, Internal Tandem Duplication, Partial Tandem Duplication

### Genomenon Cancer Knowledge Base (CKB)

Connected Insights provides the Genomenon Cancer Knowledge Base (formerly Jackson Laboratory Clinical Knowledge Base). For more information, refer to the [Genomenon CKB website](https://ckbhome.genomenon.com/). See [this page](https://ckbhome.genomenon.com/about/glossaryOfTerms) for assertion descriptions.

The following from CKB is not supported:

* Complex molecular profiles (for example, co-occuring biomarker assertions)
* Emerging and risk factor evidence types
* Class #, over exp, dec exp, hypermethylation, hypomethylation, dup exonX, dup exonX-X, LOH, loss, positive (except for HRD), and wild type variants.