Planta Med 2015; 81(06): 459-466
DOI: 10.1055/s-0035-1545881
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

Unique Macrocycles in the Taiwan Traditional Chinese Medicine Database

Christian Kramer
1   Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
,
Maren Podewitz
1   Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
,
Peter Ertl
2   Novartis Institutes for BioMedical Research, Basel, Switzerland
,
Klaus R. Liedl
1   Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
› Author Affiliations
Further Information

Publication History

received 11 August 2014
revised 20 December 2014

accepted 23 February 2015

Publication Date:
09 April 2015 (online)

Abstract

Chemical space coverage within natural product databases is an important criterion for the selection of databases for virtual screening. Chemical space analysis can also provide valuable hints towards chemical substructures that are responsible for medical activity. We therefore developed a protocol for structurally characterizing the chemical space covered in specific natural product databases by comparing it to a “standard” natural product scaffold distribution. In this contribution, we analyzed the structural characteristics of the traditional Chinese medicine database@Taiwan as an example. While we did not find classes of very characteristic small molecule scaffolds, we found that there are a number of specific macrocyclic scaffolds that are highly enriched in the traditional Chinese medicine database@Taiwan and not documented elsewhere. This surprising finding points towards underused regions in chemical space with a big potential for biological impact.

 
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