5Z-7-Oxozeaenol

Names

[ Name ]:
5Z-7-Oxozeaenol

[Synonym ]:
(3s,5z,8s,9s,11e)-8,9,16-Trihydroxy-14-Methoxy-3-Methyl-3,4,9,10-Tetrahydro-1h-2-Benzoxacyclotetradecine-1,7(8h)-Dione
LL-Z1640-2
AmbotzLS-1148
5Z-7-Oxozeaenol

Biological Activity

[Description]:

5Z-7-Oxozeaenol is a natural anti-protozoan compound from fungal origin, acting as a potent irreversible and selective inhibitor of TAK1 and VEGF-R2, with IC50s of 8 nM and 52 nM, respectively.

[Related Catalog]:

Signaling Pathways >> MAPK/ERK Pathway >> MAP3K

Research Areas >> Inflammation/Immunology

Research Areas >> Infection

Natural Products >> Others

[Target]

TAK1:8.1 nM (IC50)

MEK1:411 nM (IC50)

VEGFR-2:52 nM (IC50)

VEGFR-3:110 nM (IC50)

FLT3:170 nM (IC50)

PDGFR-β:340 nM (IC50)

B-RAF VE:6300 nM (IC50)

SRC:6600 nM (IC50)

[In Vitro]

5Z-7-Oxozeaenol is a potent irreversible and selective inhibitor of transforming growth factor (TGF)-β-activated kinase 1 (TAK1, IC50, 8.1 nM), less active on MEK1 (IC50, 411 nM). 5Z-7-Oxozeaenol prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase[1]. 5Z-7-Oxozeaenol is also an inhibitor of VEGF-R2, with an IC50 of 52 nM. 5Z-7-Oxozeaenol has inhibitory activity against VEGF-R3, FLT3, PDGFR-β, B-RAF VE and SRC, with IC50s of 110, 170, 340, 6300 and 6600 nM, respectively[2]. 5Z-7-Oxozeaenol inhibits JNK/p38 paythway, but it is not a direct inhibitor and is signal specific. 5Z-7-Oxozeaenol suppresses the PMA-induced AP-1 activity almost to the basal level in the KT cells, but has no effects on IL-1-induced NF-kB activity in the KK cells[3].

[Kinase Assay]

For screening TAK1 inhibitors, insect expression vectors for TAK1 and TAB1 are co-infected into Sf9 cells. After 2 days of incubation, cell lysates are immunoprecipitated with anti-TAK1 antibody (M-17). The immunoprecipitates are incubated with various compounds (5Z-7-Oxozeaenol, etc.) and subsequently incubated with 2 μg of myelin basic protein and 10 μCi of [γ-32P]ATP (3,000 Ci/mmol) in 10 μL of the kinase buffer containing 10 mM HEPES (pH 7.4), 1 mM dithiothreitol, 5 mM MgCl2 at 30°C for 5 min. Samples are separated by 10% SDS-PAGE, and 32P incorporated into myelin basic protein is quantified with a bioimage analyzer. The catalytic activity of MEK1 is determined by activation of ERK2 to phosphorylate dure. The catalytic activity of MEKK1 is measured with 2 μg of myelin basic protein as a substrate in the kinase buffer. For subsequent kinase assays, immunoprecipitates are incubated with 5 μCi of [γ-32P]ATP (3,000 Ci/mmol) and 1 μg of bacterially expressed MKK6 or GST-IκBα-(1-72) in 10 μL of the kinase buffer at 25°C for 2 min. Samples are separated by 10% SDS-PAGE and visualized by autoradiography[1].

[References]

[1]. Ninomiya-Tsuji J, et al. A resorcylic acid lactone, 5Z-7-oxozeaenol, prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase. J Biol Chem. 2003 May 16;278(20):18485-90.

[2]. Dakas PY, et al. Modular synthesis of radicicol A and related resorcylic acid lactones, potent kinase inhibitors. Angew Chem Int Ed Engl. 2007;46(36):6899-902.

[3]. Takehana K, et al. A radicicol-related macrocyclic nonaketide compound, antibiotic LL-Z1640-2, inhibits the JNK/p38 pathways in signal-specific manner. Biochem Biophys Res Commun. 1999 Apr 2;257(1):19-23.

[Related Small Molecules]

Chemical & Physical Properties

[ Molecular Formula ]:
C₁₉H₂₂O₇

[ Molecular Weight ]:
362.37400

[ Exact Mass ]:
362.13700

[ PSA ]:
113.29000

[ LogP ]:
1.60020

[ Storage condition ]:
2-8℃

Safety Information

[ Symbol ]:

GHS06

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H301

[ Precautionary Statements ]:
P301 + P310

[ RIDADR ]:
UN 2811 6.1 / PGIII

Precursor & DownStream

Precursor

DownStream

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Related Compounds

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