7bd1e1a311d07a946fb7b4be7eeadbd500335c2e
jnavarr5
  Thu Mar 18 15:16:55 2021 -0700
Announcing the miRNA track for hg19, refs #26287

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 <!-- ============= 2021 archived news ============= -->
 <a name="2021"></a>
 
+<a name="031821"></a>
+<h2>Updated transcription start miRNA sites for human</h2>
+<p>
+We are happy to announce an update to the TS miRNA Targets track for human,
+<a href="/cgi-bin/hgTrackUi?db=hg19&c=chrX&g=targetScanMiRnaSitesV72" >GRCh37/hg19</a>.
+This track shows conserved mammalian microRNA regulatory target sites for conserved microRNA
+families in the 3' UTR regions of Refseq Genes, as predicted by TargetScanHuman 7.2.</p>
+
+<p>
+The track items are colored based on the four classes of target sites identified in Agarwal
+<em>et al.</em>, 2015.</p>
+<table cellpadding="2">
+  <tbody>
+    <tr>
+      <td>Purple</td>
+      <td style="background-color: #800080; padding-left: 20px"></td>
+      <td>8mer</td>
+    </tr>
+    <tr>
+      <td>Red</td>
+      <td style="background-color: #ff0000; padding-left: 20px"></td>
+      <td>7mer-m8</td>
+    </tr>
+    <tr>
+      <td>Blue</td>
+      <td style="background-color: #1e90ff; padding-left: 20px"></td>
+      <td>7mer-A1</td>
+    </tr>
+    <tr>
+      <td>Green</td>
+      <td style="background-color: #00ff00; padding-left: 20px"></td>
+      <td>Non-canonical</td>
+    </tr>
+  </tbody>
+</table>
+<p>
+Thanks to George Bell of
+<a href="http://barc.wi.mit.edu/" target="_blank">Bioinformatics and Research Computing</a> at the
+Whitehead Institute for providing this annotation, which was generated in collaboration with the
+labs of David Bartel and Chris Burge. Additional information on microRNA target prediction is
+available on the <a href="http://www.targetscan.org/" target="_blank">TargetScan</A> website. We
+would also like to thank UCSC Genome Browser team members Brittney Wick, Kate Rosenbloom, and Jairo
+Navarro for the development and release of this track.</p>
+
 <a name="031721"></a>
 <h2>Updated hg38 default gene track to GENCODE v36</h2>
 <p>
 We have updated the most recent human genome, GRCh38/hg38, with an updated default gene set,
 <a href="../cgi-bin/hgTrackUi?db=hg38&g=knownGene">GENCODE v36</a>. This is part of our commitment
 to keep our annotation data as up-to-date as possible with the most 
 useful information, all versioned for maximum stability and reproducibility. This geneset 
 replaces our previous default, GENCODE v32, with a more recent dataset while retaining all 
 of the filters, viewing options, and data access abilities. The previous
 version can still be viewed in the <a href="../cgi-bin/hgTrackUi?db=hg38&g=wgEncodeGencodeSuper">
 All GENCODE</a> track. You can view the new default geneset at the following link:</p>
 <ul>
 <li><a href="../cgi-bin/hgTracks?db=hg38&hideTracks=1&knownGene=pack">GENCODE v36</a></li>
 </ul>
 <p>