Warning! Toxic compound!

Wortmannin

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CAS: 19545-26-7

Name:

Wortmannin

Other names:

Wartmannin; Antibiotic SL-2052; SL-2052; KY 12420; SureCN4531; MLS002703028; NSC221019

Wortmannin, a fungal metabolite, is a potent and selective inhibitor of PI 3-kinase. Wortmannin inhibits repair of DNA double-strand breaks in irradiated normal human cells. Wortmannin has an in vitro IC50 of around 5 nM, making it a more potent inhibitor than LY 294002 (sc-201426), another commonly used PI 3-kinase inhibitor. Wortmannin displays a similar potency in vitro for the class I, II, and III PI 3-kinase members, although it can also inhibit other PI 3-kinase-related enzymes such as FRAP (mTOR), DNA-PKCS, some phosphatidylinositol 4-kinases, myosin light chain kinase (MLCK) and mitogen-activated protein kinase (MAPK) at high concentrations. Wortmannin has also been reported to inhibit members of the polo-like kinase family with IC50 in the same range as for PI 3-kinase. The half-life of Wortmannin in tissue culture is about 10 minutes due to the presence of the highly reactive C20 carbon that is also responsible for its ability to covalently inactivate PI 3-kinase. Wortmannin is an inhibitor of Fnk and Plk.

Interactions

Description

UniProt ID

Protein: Myosin light chain kinase, smooth muscle, Gene: MYLK
Protein: Myosin light chain kinase 2, skeletal/cardiac muscle, Gene: MYLK2
Protein: Myosin light chain kinase 3, Gene: MYLK3
Protein: Serine/threonine-protein kinase PLK1, Gene: PLK1
Protein: Serine/threonine-protein kinase PLK3, Gene: PLK3
Protein: RAC-alpha serine/threonine-protein kinase, Gene: AKT1
Protein: Serine-protein kinase ATM, Gene: ATM
Protein: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform, Gene: PIK3CA
Gene: PIK3CB
Protein: Putative uncharacterized protein PIK3CD-AS1, Gene: PIK3CD-AS1
Protein: Phosphatidylinositol 4-kinase beta, Gene: PI4KB
Protein: SH2 domain-containing protein 1A, Gene: SH2D1A

Toxicity

oral LD50 [mouse] mg/kg
Unavailable
oral LD50 [rat] mg/kg
> 4.0
oral LD50 [rabbit] mg/kg
Unavailable

Effects on organism

Anti Cancer
Cardioprotective
Antibacterial

No

Antifungal

No

Antiviral

No

Longevity mechanisms activation

No data

Suppression of aging mechanisms

No data

Relation to biomarkers of Aging

Since the treatment of senescent cells with phosphoinositide 3-kinase inhibitor, wortmannin, suppressed p53 phosphorylation, it is suggested that amplification of DNA damage signaling sustains persistent activation of ATM-p53 pathway, which is essential for replicative senescence

23050037

Relation to aging associated genes

AKT1PIK3CAPIK3CBATM

Experimental conditions

Not available

Life Extension

Mean LS (%)
4.0
Median LS (%)
5.0
Mortality rate derease (%)
Max LS (%)
39.0
Cell CLS
Cell RLS

Concentration wth maximum effect

0.5 mM

More info about experiment

20017609
Opposite effectNo