polypeptin   Click here for help

GtoPdb Ligand ID: 13820

Synonyms: circulin (former name)
Compound class: Natural product
Comment: Polypeptin is an antimicrobial peptide, originally isolated from the culture broth of Bacillus krzemieniewski (a variant of B. circulans) [2]. When first described the compound was named circulin, but this was changed to polypeptin because of a conflict with another natural product from B. circulans [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 29
Hydrogen bond donors 18
Rotatable bonds 27
Topological polar surface area 490.66
Molecular weight 1057.25
XLogP -2.85
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@H](C)[C@H]1C(=O)N[C@@H](CCN)C(=O)N[C@@H](CCN)C(=O)N[C@@H]([C@@H](C)O)C(=O)NCC[C@@H](C(=O)N[C@@H](CCN)C(=O)N[C@H](CC(C)C)C(=O)N1)NC(=O)[C@H](CCN)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](CCN)NC=O
Isomeric SMILES CC[C@H](C)[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)NCC[C@@H](C(=O)N[C@H](C(=O)N[C@@H](C(=O)N1)CC(C)C)CCN)NC(=O)[C@H](CCN)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](CCN)NC=O)[C@@H](C)O)CCN)CCN
InChI InChI=1S/C45H84N16O13/c1-7-23(4)33-44(73)56-28(10-16-48)37(66)54-30(12-18-50)41(70)60-34(24(5)63)43(72)51-19-13-31(40(69)53-27(9-15-47)39(68)58-32(20-22(2)3)42(71)59-33)55-38(67)29(11-17-49)57-45(74)35(25(6)64)61-36(65)26(8-14-46)52-21-62/h21-35,63-64H,7-20,46-50H2,1-6H3,(H,51,72)(H,52,62)(H,53,69)(H,54,66)(H,55,67)(H,56,73)(H,57,74)(H,58,68)(H,59,71)(H,60,70)(H,61,65)/t23-,24+,25+,26-,27-,28-,29-,30-,31-,32+,33-,34-,35-/m0/s1
InChI Key YLHJFOAQDDQFIU-LGGGVIKPSA-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/)
Classification Click here for help
Compound class Natural product
Synonyms Click here for help
circulin (former name)
Database Links Click here for help
Specialist databases
Antibiotic DB Antibiotic DB Database logo Polypeptin
Other databases
CAS Registry No. 1404-32-6 (source: Scifinder)
GtoPdb PubChem SID 507750453
PubChem CID 3084043
Search Google for chemical match using the InChIKey YLHJFOAQDDQFIU-LGGGVIKPSA-N
Search Google for chemicals with the same backbone YLHJFOAQDDQFIU
UniChem Compound Search for chemical match using the InChIKey YLHJFOAQDDQFIU-LGGGVIKPSA-N
UniChem Connectivity Search for chemical match using the InChIKey YLHJFOAQDDQFIU-LGGGVIKPSA-N