Hi everyone,<br><br>Please I need some advice concerning g_helix:<br><br>It's the first time I use this analysis. In the manual, it says: <br>g helix computes all kind of helix properties. First, <u style="color: rgb(255, 0, 0);">the peptide is checked to find the longest helical part.</u><br>
This is determined by Hydrogen bonds and Phi/Psi angles. That bit is fitted to an ideal helix around the<br>Z-axis and centered around the origin. Then the following properties are computed:<br><br>However, when I do the following:<br>
<br>g_helix -s topol.tpr -f traj.xtc -n index.ndx -cz x.gro -co y.gro <br><br>I can't see anywhere if the program tells me which part is the longest helical part. And I don't understand what are x.gro & y.gro<br>
<br>Please can anyone tell me more about this option, because it's not very clear in the manual.<br><br>Thanks<br><br>Carla <br>