[AMBER] hbond analysis

From: Arunima Shilpi <writetoash28.gmail.com>
Date: Sun, 8 Jun 2014 18:35:47 +0530

Dear Sir

I did run cpptraj command in order get the details of donor and acceptor
groups.

Further I did run ptraj command to get the details for h-bond occupancy.

I mainly want to check the h-bond occupancy between protein and ligand.

Here the residue no 905 is for my ligand. However on analysis only single
result shows the maximum occupancy while remaining does not less occupancy.


Here is the details of the analyis


  HBOND SUMMARY:

      data was sorted, intra-residue interactions are included,
      Distance cutoff is 3.50 angstroms, angle cutoff is 120.00 degrees
      Hydrogen bond information dumped for occupancies > 0.00

        DONOR ACCEPTORH ACCEPTOR
  atom# :res.atom atom# :res.atom atom# :res.atom %occupied distance
  angle
| 7809 :497.O | 14291 :905.O10 14318 :905.H25 | 0.90 3.450 ( 0.04)
 55.13 ( 3.47)
| 7809 :497.O | 14290 :905.O9 14317 :905.H24 | 0.10 3.450 ( 0.03)
 54.17 ( 6.24)
| 14293 :905.O12 | 14292 :905.O11 14319 :905.H26 | 0.02 3.436 ( 0.00)
 58.03 ( 0.00)
 ---------------- ---------------------------------
-------------------------------------

My question how to to do the detail analysis of protein-liagnd interactions.

Regards

Arunima
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Sun Jun 08 2014 - 06:30:02 PDT
Custom Search