SB203580 ≥97%

Supplier: ENZO LIFE SCIENCES AG

Synonyms: SB 203580, 4-(5-(4-Fluorophenyl)-2-(4-(methylsulphinyl)phenyl)-1H-imidazol-4-yl)pyridine

BMLEI2860001 BMLEI2860005
ENZOBMLEI2860001EA 110 EUR
ENZOBMLEI2860001 ENZOBMLEI2860005
SB203580 ≥97%
SB203580

Protein kinase inhibitor


Cell permeable, specific inhibitor of p38 (SAPK2a). Inhibits p38 MAPK stimulation of MAPKAPK2 (IC50=70nM). Can inhibit the key cell cycle event of retinoblastoma protein phosphorylation in interleukin-2-stimulated T cells. Studies on the proximal regulator of this event, the PI(3)K (phosphoinositide 3-kinase)/Akt (protein kinase B; PKB) pathway, showed that SB203580 blocks the phosphorylation and activation of Akt by inhibiting the Akt kinase, phosphoinositide-dependent protein kinase 1 (PDK1). The concentrations of SB203580 required to block Akt phosphorylation (IC50= 3-5µM) are only approximately 10-fold higher than those required to inhibit p38 MAP kinase (IC50=0.3-0.5µM). These data define a new activity for this drug and suggest that extreme caution should be used when interpreting data when SB203580 has been used at concentrations above 1-2µM. Non-specific effects include inhibition of COX-1 and -2.

Formula: C₂₁H₁₆FN₃OS
MW: 377,4 g/mol
MDL Number: MFCD00922198
CAS Number: 152121-47-6
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