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    Hello Matteo,<br>
    <br>
    You have indeed spotted a bug in the REST API, if the requested
    overlap region is completely within the exon's start and end it
    isn't currently returned. This bug is only occurring with exon
    features.<br>
    <br>
    The fix will be available in Ensembl 89 released in May. In the
    meantime a work around would be to either expand your overlap window
    or for any gene/transcripts returned do a lookup using the expand
    option to find any decedent exons.<br>
    <br>
    Cheers.<br>
    <br>
    <div class="moz-cite-prefix">On 03/04/17 14:20, Matteo Accetturo
      wrote:<br>
    </div>
    <blockquote cite="mid:255576A4-8EE3-4EBE-8B97-4A72535BA7BF@uniba.it"
      type="cite">
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      Dear Ensembl team,
      <div class="">I am trying to retrieve the exon number with the <font
          style="text-decoration: none;" class=""><a
            moz-do-not-send="true"
            href="http://rest.ensembl.org/documentation/info/overlap_region"
            style="text-decoration: none;" class="">GET
            overlap/region/:species/:region</a> </font>REST API
        Endpoint, however the results are not always as expected. For
        example:</div>
      <div class=""><a moz-do-not-send="true"
href="http://rest.ensembl.org/overlap/region/human/1:179564700-179564705?feature=gene;feature=exon;content-type=application/json"
          class="">http://rest.ensembl.org/overlap/region/human/1:179564700-179564705?feature=gene;feature=exon;content-type=application/json</a></div>
      <div class="">should retrieve exon number 2, while it doesn’t
        retrieve any exon.</div>
      <div class="">Am I doing any mistake?</div>
      <div class="">Thanks,</div>
      <div class="">Matteo.</div>
      <div class=""><br class="">
        <div class="">
          <div class="">###################</div>
          Matteo Accetturo, Ph.D.<br class="">
          Dipartimento dell’Emergenza e dei trapianti di organi<br
            class="">
          Università degli Studi di Bari “A.Moro”<br class="">
          Policlinico, Piazza G. Cesare 11<br class="">
          70124 Bari<br class="">
          T: +39 080 5478868<br class="">
          <br class="">
          <br class="">
        </div>
        <br class="">
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      <br>
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      <br>
      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
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