ddG calculations to study point mutations

[Anonymous]

Hi,

I am using Rosetta protocol to determine ddG changes on point mutations in a peptide bound to a protein complex. I first used FastRelax to remove any steric clashes in the protein structure and then ran the ddG protocol to generate ~1000 structures till there is no change in ddG values. I now want to build a correlation plot between the Rosetta ddG values and experimental calculations.

My question is what ddG value should I consider for my calculations. I am presently using the min ddG value presently. Should I consider the value at which it is converging or the average ddG of ~1000 structures?

Thank you.

Nikita       

 

[Anonymous]

Hi Nikita,

The most recent approach for ddG calculations can be found here: https://pubs.acs.org/doi/full/10.1021/acs.jpcb.7b11367, but it differs a bit from your current approach, so for your current analysis I would try to emulate https://onlinelibrary.wiley.com/doi/full/10.1002/prot.22921

Best,

Jeliazko

[Author]

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