I think one of the options of PISA is to calculate accessibilities -- I recall when I was learning how to use pisa that I saw this option.  <div><br></div><div>Also DSSP outputs accessibilities per residue</div><div><br>
</div><div>Areaimol in ccp4 does too.</div><div><br></div><div>I have seen many programs in the internet, google &quot;accessibilities&quot;, &quot;accessible surface area.&quot;  what_if does something like this too.<br>
<br>
<div class="gmail_quote">On Sun, Jun 19, 2011 at 5:09 PM, VAN RAAIJ , MARK JOHAN <span dir="ltr">&lt;<a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1106%26L%3DCCP4BB%26E%3Dquoted-printable%26P%3D15257727%26B%3D--bcaec5171ed59e654e04a61850eb%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Dear Armando,
  <div>don&#39;t know about NACCESS, but I guess it is superseded by AREAIMOL in CCP4 (also in CCP4i); it outputs the accessible volume per atom in the pdb file and per residue and per chain and some other statistics in the log-file.</div>


  <div>Mark</div>
  <div><br></div>
  <div>Quoting Armando Albert:<br> <br>
&gt; Does anyone has got some information about how to get a mac version <br>
&gt; (intel), of the old unix program naccess?. It was meant  to calculate <br>
&gt; the solvent accessibility per residue from a pdb file.<br>
&gt; Armando<br> 
    <p>Mark J van Raaij<br>
Laboratorio M-4<br>
Dpto de Estructura de Macromoléculas<br>
Centro Nacional de Biotecnología - CSIC<br>
c/Darwin 3, Campus Cantoblanco<br>
28049 Madrid<br>
tel. 91 585 4616<br>
email: <a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1106%26L%3DCCP4BB%26E%3Dquoted-printable%26P%3D15257727%26B%3D--bcaec5171ed59e654e04a61850eb%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a></p> 
  </div></blockquote></div><br></div>