This answer is from common knowledge rather than specific infield expertise. The question could be more expertly answered by other members.
If you really want to pursue this type of calculation its, it's possible that something like INPS-MD
de novo -> protein structure stability from variants will provide an answer. So maybe compare the outputs with AlphaFold
?
Intuitively, I don't think itsit's cool, just my opinion. In my opinion, an experimentally derived structure is required as the basis for your calculation, where you want to consider the impact of an amino acid mutation.
ItsIt's important to separate de novo prediction from variant prediction. Alphafold is de novo prediction. What you are looking at is structure stability from a variant (see Summary). ThatsThat's my core answer, these different calculations. To look to explain this more clearly ...
Good variant stability calculationscalculators are DUET (2014) and INPS-MD (2016), amongst others. Just to reiterate, a good starting point is an experimentally derived protein structure.
The webserveswebservers are here,:
I personally don't know Alphafold
but understand its predecessor'spredecessors which accommodate convolutions by leveraging deep-learning. The basis of the predecessor's calculations firstly are de novo prediction and secondly can miss the impact of variants if they are not directly involved in the core-algorithm. ItsIt's about identifying which amino acids are interacting considering all available homologous amino acidacids within a database. The calculation can be predict local interactions with extreme accuracy, but itsit's a prediction. It will also depend on whether there are a single amino acid changechanges or a two- or more amino acid changes (they could compensate each other, particularly for a natural variant).
In contrast, DUET and INPS-MD, amongst a lot of other similar programs, consider the property shift of an individual amino acid in relation to its immediate local stereo-chemical environment and measured by a shift of free-energy.
Essentially, these are two sets of very different calculations.
Summary The problem I intuitively see is if de novo prediction in any form is then used, okay they are very good, but they're just predictions. Variant structural predictionpredictions are also just predictions which are very widely respected. Stacking de novo prediction onto predicting protein structure stability resulting from variants has scope for error, especially if there was some hidden non-linear effect.
There could be additional issues because the de novo calculations immediately prior to Alphafold
doesn'tdon't predict the precise local distances.
AlphaFold
would is simply respond
'its'it's not been trained'
They'd want a wet-lab experimental dataset with wild-type vs. variants, if these exist with sufficient abundance to prevent overtrainingover-training. It would be a very skewed dataset so of limited application in my personal opinion.