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wollamide B   Click here for help

GtoPdb Ligand ID: 13452

Compound class: Natural product
Comment: Wollamide B is a cyclic hexapeptide antibacterial compound with activity against Gram-positive bacteria and mycobacteria. The compound was initially isolated from Streptomyces MST-115088 [3].
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 16
Hydrogen bond donors 9
Rotatable bonds 12
Topological polar surface area 255.74
Molecular weight 739.91
XLogP 3.42
No. Lipinski's rules broken 4

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CC(C)C[C@H]1C(=O)N[C@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@H](CCCN)C(=O)N[C@@H](CC2=CNC3=C2C=CC=C3)C(=O)N1
Isomeric SMILES CC(C)C[C@H]1C(=O)N[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](C(=O)N[C@H](C(=O)N1)CC2=CNC3=CC=CC=C32)CCCN)CC(=O)N)C(C)C)CC(C)C
InChI InChI=1S/C37H57N9O7/c1-19(2)14-26-33(49)43-27(15-20(3)4)36(52)46-31(21(5)6)37(53)45-29(17-30(39)47)35(51)41-25(12-9-13-38)32(48)44-28(34(50)42-26)16-22-18-40-24-11-8-7-10-23(22)24/h7-8,10-11,18-21,25-29,31,40H,9,12-17,38H2,1-6H3,(H2,39,47)(H,41,51)(H,42,50)(H,43,49)(H,44,48)(H,45,53)(H,46,52)/t25-,26+,27-,28+,29+,31+/m1/s1
InChI Key OXJJMHSZSDGXNW-SCJLKASNSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Bioactivity Comments
Wollamide B demonstrates activity against Gram-positive bacteria with an IC50 of 0.6-2.2 μM [3]. It also has promising antimycobacterial activity with an IC50 of 3.1 μM against Mycobacterium bovis [3] and a MIC of 0.6 μM against Mycobacterium tuberculosis H37Rv [1]. Using the wollamide B scaffold, a series of analogues has been developed that have improved selectivity and are active against multidrug-resistant M. tuberculosis clinical isolates [2,4].