napsamycin C   Click here for help

GtoPdb Ligand ID: 11008

Compound class: Natural product
Comment: Napsamycin C and napsamycin D are uridylpeptide antibacterials, sharing a common structural scaffold with the mureidomycins and pacidamycins. Originally isolated from Streptomyces sp. HIL Y-82,11372, napsamycins have potent activity against Pseudomonas species but not against other Gram-negative or Gram-positive bacteria [1].
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 18
Hydrogen bond donors 10
Rotatable bonds 21
Topological polar surface area 313.6
Molecular weight 854.33
XLogP -0.55
No. Lipinski's rules broken 3

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 CSCCC(C(=O)NC(C(N(C(=O)C1NCc2c(C1)cc(cc2)O)C)C)C(=O)N/C=C\1/CC(C(O1)N1CCC(=O)NC1=O)O)NC(=O)NC(C(=O)O)Cc1cccc(c1)O
Isomeric SMILES CSCCC(C(=O)NC(C(N(C(=O)C1NCc2c(C1)cc(cc2)O)C)C)C(=O)N/C=C\1/CC(C(O1)N1CCC(=O)NC1=O)O)NC(=O)NC(C(=O)O)Cc1cccc(c1)O
InChI InChI=1S/C39H50N8O12S/c1-20(46(2)35(54)28-16-23-15-25(49)8-7-22(23)18-40-28)32(34(53)41-19-26-17-30(50)36(59-26)47-11-9-31(51)44-39(47)58)45-33(52)27(10-12-60-3)42-38(57)43-29(37(55)56)14-21-5-4-6-24(48)13-21/h4-8,13,15,19-20,27-30,32,36,40,48-50H,9-12,14,16-18H2,1-3H3,(H,41,53)(H,45,52)(H,55,56)(H2,42,43,57)(H,44,51,58)/b26-19-
InChI Key MFEPAAMYDYMBSN-XHPQRKPJSA-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/)
No information available.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Napsamycins are thought to inhibit bacterial phospho-N-acetylmuramoyl-pentapeptide-transferase (MraY, translocase I), an essential enzyme in peptidoglycan biosynthesis [2].