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penicillin G   Click here for help

GtoPdb Ligand ID: 4796

Synonyms: benzylpenicillin | penicillin G sodium | penicillin-G potassium
Approved drug PDB Ligand
penicillin G is an approved drug (FDA (1947))
Compound class: Natural product
Comment: Penicillin G (benzylpenicillin) is a narrow spectrum penicillin antibacterial. Penicillin G for clinical use is produced through biological fermentation of the Penicillium chrysogenum fungus which produces the compound naturally.
It is one of the access group antibacterials on the World Health Organization's Model List of Essential Medicines (link provided in the Classification table under the Summary tab).

penicillin G is commercially available from our sponsors

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 6
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 112.01
Molecular weight 334.1
XLogP 1.49
No. Lipinski's rules broken 0

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 O=C(Cc1ccccc1)NC1C(=O)N2C1SC(C2C(=O)O)(C)C
Isomeric SMILES O=C(Cc1ccccc1)N[C@@H]1C(=O)N2[C@@H]1SC([C@@H]2C(=O)O)(C)C
InChI InChI=1S/C16H18N2O4S/c1-16(2)12(15(21)22)18-13(20)11(14(18)23-16)17-10(19)8-9-6-4-3-5-7-9/h3-7,11-12,14H,8H2,1-2H3,(H,17,19)(H,21,22)/t11-,12+,14-/m1/s1
InChI Key JGSARLDLIJGVTE-MBNYWOFBSA-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.
Summary of Clinical Use Click here for help
Used in the treatment of severe bacterial infections including septicemia, meningitis, pericarditis, endocarditis and severe pnuemonia.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Binds to specific penicillin-binding proteins in the bacterial cell wall which inhibits the last stage of bacterial cell wall synthesis.
External links Click here for help
For extended ADME data see the following:

Drugs.com