产品说明
一般描述
A cell-permeable hydroxymethylpyrrolidine compound that acts as a high affinity (Kd = 5 nM, kofft1/2 = 8.5 min), but poor, sphingosine kinase-1/SphK1 substrate (1/1,500 of sphingosine processivity) and potently inhibits against SphK1-catalyzed sphingosine-to-S1P conversion (IC50 = 2.0 nM; [sphingosine] = 3 µM) in a reversible, sphingosine-, but not ATP-, competitive manner (Ki = 3.6 nM), exhibiting 132-fold selectivity over SphK2, no affinity toward S1P receptors (S1P1, S1P2, S1P3, S1P5), and much reduced or no inhibitory activity against a panel of 46 other lipid and protein kinases (IC50 >10 µM), including the structurally related diacylglyerol kinase α/DAGKα (3.7% inhibition at 10 µM). PF-543 exposure in 1483 squamous cultures is reported to result in intracellular S1P depletion (by 90% upon 1 h 200 nM or 7 d 1 µM drug exposure) with concomitant elevation of sphingosine level and no detectable cytotoxicity (1 µM for 7 to 9 d in 1483, A549, Jurkat, LN229, MCF7, or U937 cultures). Also active in human whole blood assays in the presence human & bovine serum proteins (IC50 = 26.7 nM against cellular C17-S1P formation from exogenously added 20 µM C17-sphingosine in 10 min with 30 min drug preincubation).
A cell-permeable hydroxymethylpyrrolidine compound that inhibits sphingosine kinase-1/SphK1-catalyzed Sphingosine phosphorylation (IC50 = 2.0 nM; [sphingosine] = 3 µM) in a reversible and sphingosine-competitive manner (Ki = 3.6 nM), exhibiting no affinity toward S1P receptors and much reduced inhibitory activity against Sphk2 (6.8% inhibition at 10 µM) or 46 other lipid and portein kinases (IC50 >10 µM). Effectively depletes cellular S1P (by 90% with 1 h 200 nM or 7 d 1 µM drug exposure in 1483 cultures) with concomitant elevation of sphingosine level and no detectable cytotoxicity.
包装
5 mg in Glass bottle
Packaged under inert gas
警告
Toxicity: Standard Handling (A)
重悬
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
其他说明
Schnute, M.E., et al. 2012. Biochem. J.444, 79.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
经验(实验)分子式 | C27H31NO4S |
分子量 | 465.60 |
酶学委员会(EC)编号 | 465.6 |
MDL编号 | MFCD23098794 |
产品性质
质量水平 | 100 |
测定 | ≥95% (HPLC) |
形式 | solid |
manufacturer/tradename | Calbiochem® |
储存条件 | OK to freeze protect from light |
颜色 | off-white |
溶解性 | DMSO: 50 mg/mL |
运输 | ambient |
储存温度 | 2-8℃ |
SMILES string | O=S(C1=CC=CC=C1)(CC2=CC(C)=CC(OCC3=CC=C(CN4[C@@H](CO)CCC4)C=C3)=C2)=O |
安全信息
储存分类代码 | 11 - Combustible Solids |
WGK | WGK 3 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich