Fumonisin B1 Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R40:Verdacht auf krebserzeugende Wirkung.
R36:Reizt die Augen.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
white to tan powder
Verwenden
Fumonisin B1 is a major analogue of a family of potent mycotoxins produced by various Fusarium species, associated with animal toxicity worldwide. In vitro, fumonisin B1 inhibits sphingosine N-acyl-transferase (ceramide synthase) and blocks the growth of axons.
Allgemeine Beschreibung
Fumonisin B
1 is a neurotoxin and a phytotoxin. A cell-permeable mycotoxin that inhibits sphingolipid biosynthesis in rat kidney and in liver microsomes by inhibition of sphingosine N-acyltransferase (ceramide synthase) (IC
50 = 100 nM). Cellular effects also appear to be induced by micromolar levels of FB
1. Because it inhibits ceramide synthase activity, it elevates cellular levels of sphingoid bases, including sphinganine, resulting in overall inhibition of sphingolipid biosynthesis. Preferentially inhibits sphingomyelin biosynthesis in neuronal cells. Has carcinogenic properties.
Biologische Aktivität
Mycotoxin produced by Fusarium moniliforme . Potently inhibits sphingosine N-acyltransferase (ceramide synthase), causing an accumulation of sphingoid bases (IC 50 ~ 75 nM). Also inhibits protein phosphatases; IC 50 values are 80, 300, 400, 500 and 3000 μ M for PP5, PP2C α , PP2A, PP1 γ 2 and PP2B respectively.
Fumonisin B1 Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
