HERBIMYCIN A Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Verwenden
Herbimycin A is the major analogue of a complex of benzoquinone ansamycin antibiotics isolated from a Streptomyces hygroscopicus. Herbimycin A inhibits the 90-kDa heat-shock protein (Hsp90) which provides essential chaperone support to various signal transduction molecules, including certain steroid hormone receptors and select kinases. Herbimycin also inhibits protein tyrosine kinase and angiogenesis.
Definition
ChEBI: A 19-membered macrocyle incorporating a benzoquinone ring and a lactam functionality. It is an ansamycin antibiotic that induces apoptosis and displays antitumour effects.
Allgemeine Beschreibung
A cell-permeable, potent inhibitor of protein tyrosine kinases. Inhibits p60
v-src (IC
50 = 12 μM) autophosphorylation. Irreversibly binds to the sulfhydryl groups of the kinase. Dose-dependently inhibits PDGF-induced phospholipase D activation (IC
50 = 8 μg/ml). Also, reported to inhibit c-
src related bone resorption (IC
50 = 70 nM). Inhibits angiogenesis in chick chorioallantoic membrane and blocks anti-CD3 monoclonal antibody-induced apoptosis of thymocytes. Several mammalian cell lines transformed with tyrosine kinase oncogenes (
src, abl, fps, ros, yes, erbB) show reversion from the transformed to the normal phenotype after treatment with herbimycin A.
Biologische Aktivität
Ansamycin antibiotic that acts as a Src family kinase inhibitor. Binds to the SH domain and inhibits the activity of p60 v-src and p210 BCR-ABL . Exhibits antiangiogenic activity in endothelial cells in vitro . Also inhibits Hsp90 and impairs recovery from heat shock.
HERBIMYCIN A Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
