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Substructure Matching, REST style

I’ve been putting up a number of REST services for a variety of cheminformatics tasks. One that was missing was substructure searching. In many scenarios it’s useful to be able to check whether a target molecule contains a query substructure or not. This can now be done by visiting URL’s of the form 1http://rguha.ath.cx/~rguha/cicc/rest/substruct/TARGET/QUERY where […]

Update to the REST Descriptor Services

The current version of the REST interface to the CDK descriptors allowed one to access descriptor values for a SMILES string by simply appending it to an URL, resulting in something like http://rguha.ath.cx/~rguha/cicc/rest/desc/descriptors/ org.openscience.cdk.qsar.descriptors.molecular.ALOGPDescriptor/c1ccccc1COCC This type of URL is pretty handy to construct by hand. However, as Pat Walters pointed out in the comments to […]

Playing with REST Descriptor Services

As part of my work at IU I have been implementing a number of cheminformatics web services. Initially these were SOAP, but I realized that REST interfaces make life much easier. (also see here) As a result, a number of these services have simple REST interfaces. One such service provides molecular descriptor calculations, using the […]

Extending the REST PCA Service

I recently described a REST based service for performing PCA-based visualization of chemical spaces. By visiting a URL of the form http://rguha.ath.cx/~rguha/cicc/rest/chemspace/default/ c1ccccc1,c1ccccc1CC,c1ccccc1CCC,C(=O)C(=O),CC(=O)O one would get a HTML, plain text or JSON page containing the first two principal components for the molecules specified. With this data one can generate a simple 2D plot of the […]

Visualizing Scaffold Trends

Recently Barbara Zdrazil and I published an article that explored the idea of tracking the attention being paid to a scaffold in the medicinal chemistry literature (as represented by ChEMBL). The gist of the idea is that scaffolds that are more frequently enumerated or tested in more assays (or even published in increasingly high IF […]