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    On 20/04/2012 4:38 PM, Sundar Jubilant wrote:
    <blockquote
      cite="mid:8CEECD762827AA5-410-3C40E@webmail-d047.sysops.aol.com"
      type="cite"><font color="black" face="arial" size="2"><font
          color="black" face="arial" size="2">
          <div> <br>
          </div>
          <div> <font face="Arial, Helvetica, sans-serif">Dear Abraham,<br>
              <br>
              Thanks for your email. I have already read the manual to
              solve the problem but I wasn't successful.<br>
            </font></div>
        </font></font></blockquote>
    <br>
    That's good to say (particularly the first time you post a request
    for help, else you'll just get told to go and read), but is unlikely
    to get much help because you haven't identified a specific problem.
    You'd like the ability to build hydrogen atoms on a heme residue.
    pdb2gmx has to have a specific recipe for doing that. The manual
    describes the required format and gives an example. Someone's going
    to have to do some work.<br>
    <br>
    <blockquote
      cite="mid:8CEECD762827AA5-410-3C40E@webmail-d047.sysops.aol.com"
      type="cite"><font color="black" face="arial" size="2"><font
          color="black" face="arial" size="2">
          <div><font face="Arial, Helvetica, sans-serif">
              <br>
              I need little more detailed answer to solve the problem. <br>
              <br>
              By the way, here is the full command line for which I got
              the error.<br>
              <br>
              $ pdb2gmx -f CYP.pdb -o CYP_CHARMM.pdb -p CYP1_CHARMM.top
              -i CYP_CHARMM.itp -ignh<br>
            </font></div>
        </font></font></blockquote>
    <br>
    If you don't ignore hydrogens, and they're already correct, you
    don't need to re-generate them...<br>
    <br>
    Mark<br>
    <br>
    <blockquote
      cite="mid:8CEECD762827AA5-410-3C40E@webmail-d047.sysops.aol.com"
      type="cite"><font color="black" face="arial" size="2"><font
          color="black" face="arial" size="2">
          <div><font face="Arial, Helvetica, sans-serif">
              <br>
              The error is<br>
              <br>
            </font><font color="black" face="arial" size="2"><font
                color="black" face="arial" size="2"><font color="black"
                  face="arial" size="2"><font face="Arial, Helvetica,
                    sans-serif">WARNING: atom HA is missing in residue
                    HEM 513 in the pdb file<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HA to the
                    hydrogen database of building block HEME<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the manual)<br>
                    <br>
                    <br>
                    WARNING: atom HB is missing in residue HEM 513 in
                    the pdb file<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HB to the
                    hydrogen database of building block HEME<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the manual)<br>
                    <br>
                    <br>
                    WARNING: atom HC is missing in residue HEM 513 in
                    the pdb file<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HC to the
                    hydrogen database of building block HEME<br>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the manual)<br>
                    <br>
                    .<br>
                    .<br>
                    .<br>
                    .<br>
                    .<br>
-------------------------------------------------------<br>
                    Program pdb2gmx, VERSION 4.5.3<br>
                    Source code file: pdb2top.c, line: 1449<br>
                    <br>
                    Fatal error:<br>
                    There were 30 missing atoms in molecule Protein, if
                    you want to use this incomplete topology anyhow, use
                    the option -missing<br>
                    For more information and tips for troubleshooting,
                    please check the GROMACS<br>
                    website at <a moz-do-not-send="true"
                      class="moz-txt-link-freetext" target="_blank"
                      href="http://www.gromacs.org/Documentation/Errors">http://www.gromacs.org/Documentation/Errors</a><br>
-------------------------------------------------------<br>
                    <br>
                    Thanks.<br>
                    <br>
                    Sundar Jubilant<br>
                  </font></font></font></font><font face="Arial,
              Helvetica, sans-serif"><br>
            </font>
          </div>
          <div> <br>
          </div>
          <div
            style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original
            Message-----<br>
            From: Mark Abraham <a class="moz-txt-link-rfc2396E" href="mailto:Mark.Abraham@anu.edu.au">&lt;Mark.Abraham@anu.edu.au&gt;</a><br>
            To: Discussion list for GROMACS users
            <a class="moz-txt-link-rfc2396E" href="mailto:gmx-users@gromacs.org">&lt;gmx-users@gromacs.org&gt;</a><br>
            Sent: Fri, Apr 20, 2012 2:17 pm<br>
            Subject: Re: [gmx-users] Heme group with CHARMM27 FF<br>
            <br>
            <div id="AOLMsgPart_2_989141e2-b2c9-4465-ab1e-9f4619eb8577">
              On 20/04/2012 2:33 PM, Sundar Jubilant wrote:
              <blockquote type="cite"><font color="black" face="arial"
                  size="2"><font color="black" face="arial" size="2"><font
                      face="Arial, Helvetica, sans-serif">Dear
                      gmx-users,<br>
                      <br>
                      I am new to Gromacs and trying to simulate a
                      protein with a heme group using CHARMM27 ff in
                      Gromacs 4.5.3. I have received the following error
                      while running pdb2gmx .<br>
                    </font></font></font></blockquote>
              <br>
              When asking for help, please give your full command lines
              and/or interactive selections so that we can know more
              context.<br>
              <br>
              <blockquote type="cite"><font color="black" face="arial"
                  size="2"><font color="black" face="arial" size="2"><font
                      face="Arial, Helvetica, sans-serif"> <br>
                      WARNING: atom HA is missing in residue HEM 513 in
                      the pdb file<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HA to the
                      hydrogen database of building block HEME<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the
                      manual)<br>
                      <br>
                      <br>
                      WARNING: atom HB is missing in residue HEM 513 in
                      the pdb file<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HB to the
                      hydrogen database of building block HEME<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the
                      manual)<br>
                      <br>
                      <br>
                      WARNING: atom HC is missing in residue HEM 513 in
                      the pdb file<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; You might need to add atom HC to the
                      hydrogen database of building block HEME<br>
                      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the file aminoacids.hdb (see the
                      manual)<br>
                      <br>
                      .<br>
                      .<br>
                      .<br>
                      .<br>
                      .<br>
-------------------------------------------------------<br>
                      Program pdb2gmx, VERSION 4.5.3<br>
                      Source code file: pdb2top.c, line: 1449<br>
                      <br>
                      Fatal error:<br>
                      There were 30 missing atoms in molecule Protein,
                      if you want to use this incomplete topology
                      anyhow, use the option -missing<br>
                      For more information and tips for troubleshooting,
                      please check the GROMACS<br>
                      website at <a moz-do-not-send="true"
                        class="moz-txt-link-freetext" target="_blank"
                        href="http://www.gromacs.org/Documentation/Errors">http://www.gromacs.org/Documentation/Errors</a><br>
-------------------------------------------------------<br>
                      <br>
                      Can anyone help how can I generate and add
                      hydrogen database information for heme to be used
                      with CHARMM27 ff?</font></font></font><br>
              </blockquote>
              <font color="black"><font size="2"><font face="Arial,
                    Helvetica, sans-serif"><br>
                    You'll have to read the applicable sections of
                    manual chapter 5, make a local copy of the
                    charmm27.ff folder in your working directory and
                    editing aminoacids.hdb to add the generation
                    information. When you're done, please post your
                    efforts so that others might be able to benefit from
                    them in future. (Also, search first in case this has
                    already happened!)<br>
                    <br>
                    Mark<br>
                  </font></font></font> </div>
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              <pre style="font-size: 9pt;"><tt>-- 
gmx-users mailing list    <a moz-do-not-send="true" href="mailto:gmx-users@gromacs.org">gmx-users@gromacs.org</a>
<a moz-do-not-send="true" href="http://lists.gromacs.org/mailman/listinfo/gmx-users" target="_blank">http://lists.gromacs.org/mailman/listinfo/gmx-users</a>
Please search the archive at <a moz-do-not-send="true" href="http://www.gromacs.org/Support/Mailing_Lists/Search" target="_blank">http://www.gromacs.org/Support/Mailing_Lists/Search</a> 
before posting!
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to <a moz-do-not-send="true" href="mailto:gmx-users-request@gromacs.org">gmx-users-request@gromacs.org</a>.
Can't post? Read <a moz-do-not-send="true" href="http://www.gromacs.org/Support/Mailing_Lists" target="_blank">http://www.gromacs.org/Support/Mailing_Lists</a>
</tt></pre>
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