Hi Tim,

mol.GetSubstructMatch(query) will give you indices in mol that match query.

Also note that |rdFMCS.||MCSResult| has a |queryMol |property that encode the MCS query, so you don't need to rebuild the query molecule out of the SMARTS pattern.

p.

On 18/04/2020 10:27, Tim Dudgeon wrote:
I also updated the Jupyter notebook with the solution.

Out of interest, I now need to get the atom indices of the part of the molecule that matched. As Jupyter is nicely highlighting this that must already be present in the molecule somehow, but I can't find out how.

I look at molecule and atom properties but can't find anything that suggests "highlight me".

How is this encoded?

Tim

On 17/04/2020 19:02, Paolo Tosco wrote:
Hi Tim,

I’ll take a look later and get back to you.

Cheers,
p.

On 17 Apr 2020, at 18:55, Tim Dudgeon <tdudgeon...@gmail.com> wrote:

I'm wanting to use AllChem.ConstrainedEmbed() to generate a conformer of a molecule tethered to a molecule that should always have some MCS. I found some code on the internet that mostly works, but I don't fully understand.

It generally works as planned, but for a small number of examples it fails.

Can someone guide me to what is wrong. Here is an example (good and bad):

https://github.com/tdudgeon/jupyter_mpro/blob/master/tethering.ipynb




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