thapsigargin

Also known as (3S,3aR,4S,6S,6aR,7S,8S,9bS)-6-acetoxy-4-(butyryloxy)-3,3a-dihydroxy-3,6,9-trimethyl-8-((Z)-2-methylbut-2-enoyloxy)-2-oxo-2,3,3a,4,5,6,6a,7,8,9b-decahydroazuleno[4,5-b]furan-7-yl octanoate, (3S,3aR,4S,6S,6aR,7S,8S,9bS)-6-acetoxy-4-(butyryloxy)-3,3a-dihydroxy-3,6,9-trimethyl-8-(2-methylbut-2-enoyloxy)-2-oxo-2,3,3a,4,5,6,6a,7,8,9b-decahydroazuleno[4,5-b]furan-7-yl octanoate, Octanoic acid 6-acetoxy-4-butyryloxy-3,3a-dihydroxy-3,6,9-trimethyl-8-(2-methyl-but-2-enoyloxy)-2-oxo-2,3,3a,4,5,6,6a,7,8,9b-decahydro-azuleno[4,5-b]furan-7-yl ester (TG), Tg, thapsigargine, octanoic acid {3S-[3alpha,3abeta,4alpha,6beta,6abeta,7beta,8alpha(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl ester

Thapsigargin is a non-competitive inhibitor of the sarco/endoplasmic reticulum Ca2+ ATPase (SERCA). Structurally, thapsigargin is classified as a guaianolide, and is extracted from a plant, Thapsia garganica. It is a tumor promoter in mammalian cells.

Chemical data

Formula: C34H50O12
Molecular weight: 650.8 g/mol
IUPAC name: [(3S,3aR,4S,6S,6aR,7S,8S,9bS)-6-acetyloxy-4-butanoyloxy-3,3a-dihydroxy-3,6,9-trimethyl-8-[(Z)-2-methylbut-2-enoyl]oxy-2-oxo-4,5,6a,7,8,9b-hexahydroazuleno[4,5-b]furan-7-yl] octanoate

via PubChem

Drug data · ChEMBL

Molecule type: Small molecule

via ChEMBL · EBI

Research

10,110 papers

Thapsigargin-From Traditional Medicine to Anticancer Drug.International journal of molecular sciences · 2020
Thapsigargin: key to new host-directed coronavirus antivirals?Trends in pharmacological sciences · 2022
Targeting thapsigargin towards tumors.Steroids · 2015
Thapsigargin--from Thapsia L. to mipsagargin.Molecules (Basel, Switzerland) · 2015
Thapsigargin: a promising natural product with diverse medicinal potential - a review of synthetic approaches and total syntheses.Organic & biomolecular chemistry · 2024

via PubMed

Wikidata facts

Mass: 650.33

Show 4 more facts

chemical formula: C₃₄H₅₀O₁₂
canonical SMILES: CCCCCCCC(=O)OC1C2C(=C(C1OC(=O)C(=CC)C)C)C3C(C(CC2(C)OC(=O)C)OC(=O)CCC)(C(C(=O)O3)(C)O)O
isomeric SMILES: CCCCCCCC(=O)O[C@H]1[C@H]2C(=C([C@@H]1OC(=O)/C(=C\C)/C)C)[C@H]3[C@]([C@H](C[C@]2(C)OC(=O)C)OC(=O)CCC)([C@](C(=O)O3)(C)O)O
Commons category: Thapsigargin

Sources (5)

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Article

5 sections

Contents

Biosynthesis
Research
See also
References
Further reading

Thapsigargin raises cytosolic (intracellular) calcium concentration by blocking the ability of the cell to pump calcium into the sarcoplasmic and endoplasmic reticula. Store-depletion can secondarily activate plasma membrane calcium channels, allowing an influx of calcium into the cytosol. Depletion of ER calcium stores leads to ER stress and activation of the unfolded protein response. Non-resolved ER stress can cumulatively lead to cell death. Prolonged store depletion can protect against ferroptosis via remodeling of ER-synthesized phospholipids.