半岛bd体育手机客户端 说明
一般描述
A cell-permeable biphenylylpentanoic acid compound that acts as a selective allosteric inhibitor of E2 ubiquitin-conjugating enzyme Cdc34 (IC50= 2.5 ?M in a Sic1-SCFCdc4assay) without affecting the activities of E1 or E3 ligases. Reported to act by trapping a weak interaction between ubiquitin and the E2 donor ubiquitin-binding site and may serve as a molecular bridge between Cdc34A and ubiquitin. Binds to Cdc34ACAT alone with an EC50value of 267 ?M, but in the presence of ubiquitin, this affinity is significantly increased (EC50= 19 ?M). Does not disrupt the interaction of Cdc34A with the RING domain of Rbx1 and is suggested to even moderately stabilize this interaction. Shown to inhibit p27Kip1ubiquitination (IC50= 1.72 ?M) and reduce PC-3 cancer cells proliferation (~30 ?M).
Please note that the molecular weight for this compound is batch-specific due to variable water content.
A cell-permeable and aqueous soluble (~ 1 mg/mL or 2.26 mM at pH 7.4) biphenylylpentanoic acid that selectively inhibits human, but not yeast, E2 Ub-conjugating enzyme Cdc34- dependent substrates ubiquitinations in p27kip1-SCFSkp2, Sic1-SCFCdc4(IC50= 1.72 & 2.5 ?M, respectively), Cyclin E-SCFFbw7, IκBα-SCFβTrCPubiquitination assays and induces cellular p27kip1and cyclin E accumulation (30 ?M for 16 h in PC-3 cultures), displaying no affinity or inhibitory activity against other E1 (Uba1), E2 (Cdc34B/Ube2R2,Ube2G1, UbeU1), HECT E3 (SMURF 2, UbcH7), or RING E3 (Rnf168) tested. CC0651 is shown to target Ub-bound Cdc34 with a 14-fold higher affinity than the non-Ub-bound Cdc34 via an allosteric binding pocket at the periphery of the Cdc34-Ub interface. In addition to inhibit the reactivity of the Cdc34-Ub complex via direct binding, the CC0651-bound Cdc34-Ub complex itself is reported to exhibit higher affinity toward SCF E3 complex and thereby exhibit a dominant negative effect by effectively competing against functional Cdc34-Ub complex for SCF binding.
生化/生理作用
Cell permeable: yes
Primary Target
E2 ubiquitin-conjugating enzyme Cdc34
Reversible: yes
包装
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
Huang, H., et al. 2013.Nat. Chem. Biol.10,156.
Ceccarelli, D.F., et al. 2011.Cell145,1075.
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 | C20H21Cl2NO6 |
分子量 | 442.29 |
半岛bd体育手机客户端 性质
质量水平 | 100 |
测定 | ≥98% (HPLC) |
形式 | powder |
光学纯度 | ee: ≥98% |
manufacturer/tradename | Calbiochem? |
储存条件 | OK to freeze protect from light |
颜色 | off-white |
溶解性 | DMSO: 100 mg/mL |
储存温度 | ?20℃ |
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