o"># initialize</span></span>
<span id="cb4-2"><a href="#cb4-2" tabindex="-1"></a>msec <span class="ot">&lt;-</span> <span class="cn">NULL</span></span>
<span id="cb4-3"><a href="#cb4-3" tabindex="-1"></a>homology_search <span class="ot">&lt;-</span> <span class="cn">NULL</span></span>
<span id="cb4-4"><a href="#cb4-4" tabindex="-1"></a>mut_depth <span class="ot">&lt;-</span> <span class="cn">NULL</span></span>
<span id="cb4-5"><a href="#cb4-5" tabindex="-1"></a></span>
<span id="cb4-6"><a href="#cb4-6" tab