<div dir="ltr"><div class="gmail_extra"><div class="gmail_extra">Dear Elaine,</div><div class="gmail_extra"><br></div><div class="gmail_extra">1) &quot;report values&quot; gives only 3 values (x coord, y coord, z coord) ¬†and not 4 values.</div><div class="gmail_extra"><br></div><div class="gmail_extra">2) Based on your suggestion, I did following steps:</div><div class="gmail_extra"><br></div><div class="gmail_extra">Tools... structure Editing... pdb2pqr</div><div class="gmail_extra"><br></div><div class="gmail_extra">But I encountered with:</div><div class="gmail_extra"><br></div><div class="gmail_extra">Service &#39;opal:pdb2pqr_1.8&#39; is unavailable.</div><div class="gmail_extra"><br></div><div class="gmail_extra">3) Again, I tried the apbs in command line.</div><div class="gmail_extra"><br></div><div class="gmail_extra">To have my dx and the PDB files, please check the following links:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><a href="https://www.dropbox.com/s/n4zv0lq7s4p1pz2/44.pdb?dl=0">https://www.dropbox.com/s/n4zv0lq7s4p1pz2/44.pdb?dl=0</a></div><div class="gmail_extra"><a href="https://www.dropbox.com/s/w6dg4adb498178r/tmpiwv0lf.dx?dl=0">https://www.dropbox.com/s/w6dg4adb498178r/tmpiwv0lf.dx?dl=0</a></div><div class="gmail_extra"><br></div><div class="gmail_extra">Again, electrostatic surface is as black and white instead of red and blue.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Thanks in advance,</div><div class="gmail_extra">Leila</div></div></div>