[AMBER] Extremely high activation energy was found for a PMF. Any potential source of errors?

From: Catein Catherine <askamber23.hotmail.com>
Date: Thu, 19 Aug 2010 12:32:46 +0800

Dear Sir/Madam,

 

I am using PMF to study a drug dissociation pathway.

 

I did ~ 3ns for each window.

 

I found the dissociation pathways seems to be reasonable. However, the activation energy was as high as 300 kcal/mol.

 

Could you mind to share your experience with me on if the activation energy of as high as 300 kcal/mol seems reasonable when a conformational change in the protein receptor is needed to dissociate a drug?

 

If it is not an reasonable, would you kindly suggest the protential source of error of this analysis?

 

Best regards,

 

Catherine
                                               
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Received on Wed Aug 18 2010 - 22:00:03 PDT
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