Ligand id: 224

Name: melatonin

Abbreviated name: MLT

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Structure and Physico-chemical Properties

2D Structure
Calculated Physico-chemical Properties
Hydrogen bond acceptors 3
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 54.12
Molecular weight 232.12
XLogP 1.34
No. Lipinski's rules broken 0

Molecular properties generated using the CDK

View interactive charts of activity data from GtoPdb and ChEMBL (where available) across species

Natural/Endogenous Targets
MT1 receptor
MT2 receptor
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Affinity Units Concentration range (M) Reference
MT2 receptor Hs Agonist Full agonist 9.4 – 9.8 pKi - 1-3
pKi 9.4 – 9.8 [1-3]
MT1 receptor Hs Agonist Full agonist 9.1 – 9.7 pKi - 1-3
pKi 9.1 – 9.7 [1-3]
5-HT2B receptor Hs Antagonist Antagonist 5.2 pKi - 4
pKi 5.2 [4]
Ligand mentioned in the following text fields