Conformal LogD Predictor

Conformal prediction of log D based on dataset of ACD Log D from ChEMBL

For developers
For end-users
Trained model
API Definitions for OpenRiskNet applications and data
Structure-activity relationship (SAR / QSAR)

Provided by:
Uppsala University
Login required:
Implementation status:
Available as web service, Application programming interface available
Integration status:
Integrated application
Service integration operations completed:
Utilises the OpenRiskNet APIs to ensure that each service is accessible to our proposed interoperability layer.
Is annotated according to the semantic interoperability layer concept using defined ontologies.
Is containerised for easy deployment in virtual environments of OpenRiskNet instances.
Has documented scientific and technical background.
Is deployed into the OpenRiskNet reference environment.
Is listed in the OpenRiskNet discovery services.
Is listed in other central repositories like eInfraCentral, and TeSS (ELIXIR).
Provides legal and ethical statements on how the service can be used.

Resources & Training

Peer-reviewed publication
A confidence predictor for logD using conformal regression and a support-vector machine
Lapins M, Arvidsson S, Lampa S, Berg A, Schaal W, Alvarsson J, Spjuth O
3 Apr 2018
Lipophilicity is a major determinant of ADMET properties and overall suitability of drug candidates. We have developed large-scale models to predict water–octanol distribution coefficient (logD) for chemical compounds, aiding drug discovery projects. Using ACD/logD data for 1.6 million compounds from the ChEMBL database, models are created and evaluated by a support-vector machine with a linear kernel using conformal prediction methodology, outputting prediction intervals at a specified confidence level. The resulting model shows a predictive ability of Q2=0.973 and with the best performing nonconformity measure having median prediction interval of ± 0.39 log units at 80% confidence and ± 0.60 log units at 90% confidence. The model is available as an online service via an OpenAPI interface, a web page with a molecular editor, and we also publish predictive values at 90% confidence level for 91 M PubChem structures in RDF format for download and as an URI resolver service.
Related services:
Conformal LogD Predictor

Published in: J. Cheminformatics
Publisher: BMC (Springer Nature)
Target audience: Risk assessors, Researchers, Students, Developers
Open access: yes
Organisations involved: UU
Peer-reviewed publication