SuperStar

Visually probe protein-ligand structures and understand their binding sites

 

Providing knowledge-based pharmacophore generation and prediction of intermolecular interactions, SuperStar is used by medicinal chemists to visualise and understand molecular design by protein interaction mapping.

 

Superstar

SuperStar contour map of 4AAH (Methanol Dehydrogenase) binding site using the C=O probe (CSD data). The ligand acceptor groups correlate well with the areas of highest predicted propensity.

SuperStar uses crystallographic information about non-bonded interactions to generate interaction maps within protein binding sites or around small molecules, i.e. it predicts ‘hot-spots’ where a chosen interaction type is particularly favorable.

The interaction maps are generated by estimating the probability of an interaction between, for example, the protein and a probe (a small functional group such as methyl or carbonyl) based on how often the interaction has been observed in crystal structures.


Benefits

Simple interface

Fast, simple wizard to run the analysis.


Expertly-presented results

Interpret the outputs and guide your molecule design. Likelihoods of interactions rather than comparative energy​ - This is probably most important for weaker probes.


Real data

Based on real experimental data from the CSD. Complimentary to calculated methods like DFT, SAPT.

Competition information is implicit in the underlying data.


Accessible via Python API and Hermes desktop GUI

Custom control or run on many proteins in a workflow, and use outputs for machine learning.


Time efficient

Faster than using energy-based calculations​.


Full Interaction Maps (FIMs)

Map interaction preferences around complete molecules in a crystal structure. Visualise observed atom-atom contacts with respect to likely geometries in 3D space. Identify interaction hotspots around chemical groups.


Learn more

 

 


FAQs

What forcefield is SuperStar based on?

  • SuperStar knowledge based and not based upon any forcefield.

When would I use SuperStar and when would I use FIMs?

  • Superstar analyses proteins, giving a map of potential binding sites. FIMs is used to analyse small molecules, for example to understand if H-bonds are in optimal locations.

How does SuperStar work?

  • SuperStar retrieves its data from IsoStar, CCDC's library of intermolecular interactions. IsoStar contains information about non-bonded interactions from both the CSD and the PDB. The interaction maps that SuperStar generates are therefore fully knowledge-based and all results can be traced back to experimentally observed geometries of interaction.

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