User: Barbara Zdrazil

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Workflows for scaffold trend analyses

Created: 2017-06-22 13:01:47 | Last updated: 2018-06-14 09:37:37

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KNIME workflows from Zdrazil et al, MedChemComm, 201...

Created: 2016-07-20 06:21:03 | Last updated: 2017-06-22 13:35:07

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Substructure querying | R-group decomposit... (1)

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This workflow creates maximum common substructure (MCS) out of the provided structures and then substructure mining using MCS as a structural query is performed. Obtained hits are then subjected to R-group decomposition to explore their functional groups. Optionally, physicochemical descriptors for individual functional groups can be calculated.

Created: 2018-10-25

Credits: Alzbeta Tuerkova Barbara Zdrazil

Scaffold Analysis | Statistical analysis o... (1)

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This workflow performs an extraction and statistical analysis of Murcko scaffolds for compounds being active against (a) different target(s). Specifically, target-wise detection of Murcko Scaffolds in active versus inactive compounds, filtering steps by removing too generic scaffold (i.e., number of rings equals to one OR number of heteroatoms in a ring is zero or one), calculating the frequency of a particular scaffold which appears frequently in the active over inactive class, applying Fish...

Created: 2018-10-25

Credits: Alzbeta Tuerkova Barbara Zdrazil

Scaffolds_trends_workflow_2 (1)

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Second part of the workflow for paper "The rise and fall of a scaffold: A trend analysis of scaffolds in the medicinal chemistry literature" by B. Zdrazil and R. GuhaIncludes grouping and filtering steps to retrieve the summary data needed for performing the scaffold trend, bioactivity, and liability analyses.

Created: 2017-06-22

Credits: Barbara Zdrazil

Scaffolds_trends_workflow_1 (1)

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First part of the workflow for paper "The rise and fall of a scaffold: A trend analysis of scaffolds in the medicinal chemistry literature" by B. Zdrazil and R. GuhaIncludes initial filtering steps, extraction of Murcko frameworks, inclusion of journal Impact Factors, and calculation of Z-Scores. The example of oxetane substructure search is also included.

Created: 2017-06-22 | Last updated: 2017-06-22

Credits: Barbara Zdrazil

KNIME workflow without hERG labels include... (1)

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KNIME workflow used to retrieve and process data from Open PHACTS for three targets of interest (hSERT, hDAT, hERG). Further, Murcko scaffolds are computed and selectivity trends towards hSERT and hDAT can be studied. Cutt off's for separating actives/inactives are tailored to the specific target and endpoint.Requirements:- Knime v2.11- Open PHACTS Knime nodes version 1.1.0: https://github.com/openphacts/OPS-Knime- KNIME additional community nodes: 'Trusted Community Contributions (2....

Created: 2016-07-20 | Last updated: 2016-07-20

Credits: Barbara Zdrazil Open PHACTS

KNIME workflow used to collate data for th... (1)

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KNIME workflow used to collate data from different sources (Open Data, in-house data) for certain protein targets of interest; further the data is filtered for certain activity endpoints, erraneous data is removed and data overlap between the different sources as well as the targets under study is determined and given as an output;Requirements:- Knime v2.11- Open PHACTS Knime nodes version 1.1.0: https://github.com/openphacts/OPS-Knime- KNIME additional community nodes: 'Trusted Community...

Created: 2015-11-02 | Last updated: 2016-03-29

Credits: Barbara Zdrazil Daniela Digles Open PHACTS

Use Case B, KNIME workflow (1)

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Workflow used to obtain data for the research paper ‘The application of the Open Pharmacological Concepts Triple Store (Open PHACTS) to support Drug Discovery Research’, PLoS One. 2014 Dec 18; 9(12):e115460. PMID: 25522365; authored by Joseline Ratnam, Barbara Zdrazil, Daniela Digles, Cuadrado-Rodriguez E, et al. This workflow can be used to retrieve data and perform the analysis described in use case BRequirements:- Knime v2.9- Open PHACTS Knime nodes version 1.0.0 (DON'...

Created: 2014-11-20 | Last updated: 2015-11-03

Credits: Barbara Zdrazil Emiliano Cuadrado Daniela Digles Lars Richter Open PHACTS