5.09911
RNA Polymerase I Inhibitor II, BMH-21
别名:
RNA Polymerase I Inhibitor II, BMH-21, BMH21, rRNA Transcription Inhibitor II, N-(2-(Dimethylamino)ethyl)-12-oxo-12H-benzo[g]pyrido[2,1-b]quinazoline-4-carboxamide, N-(2-(Dimethylamino)ethyl)-12-oxo-12H-benzo[g]pyrido[2,1-b]quinazoline-4-carboxamide, BMH21, rRNA Transcription Inhibitor II
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About This Item
推荐产品
方案
≥98% (HPLC)
质量水平
表单
powder
制造商/商品名称
Calbiochem®
储存条件
OK to freeze
protect from light
颜色
orange-yellow
溶解性
DMSO: 1 mg/mL
5% acetic acid: 25 mg/mL
储存温度
2-8°C
SMILES字符串
[n]21c(nc3c([c]2=O)cc4c(c3)cccc4)c(ccc1)C(=O)NCCN(C)C
InChI key
BXYDVWIAGDJBEC-UHFFFAOYSA-N
一般描述
A cell-permeable, reversible DNA-intercalating benzopyridoquinazoline-carboxamide that preferentially targets GC-rich sequence, notably that of rDNA (162% of average human genome GC content), and effectively inhibits RNA polymerase I- (Pol I) mediated rDNA transcription both in cell-free assays and in cultures (IC50/ICmax = 60 nM/≤1 M against 2-h de novo 47S transcription in A375 cells) without affecting the maturation/processing of 47S into 32S and 18S rRNA. Time-dependent studies in 1 M BMH-21-treated A375 cells reveal fast inhibition of nuclear RNA synthesis (FUrd incorporation) within 15 min, followed by progressive altered localization of nucleolar proteins (starting in <20 min), including Pol I subunit RPA194 capping structure formation, indicative of stalled Pol I complex, and eventual proteasome-mediated RPA194 degradation (>1 h). Although BMH-21 activates p53 independent of DNA damage-sensing ATM pathway signaling in A375 cultures, wt p53 is not a prerequisite for BMH-21 anticancer activity (Av GI50 = 110 nM/wt and 205 nM/mutant among NCI60 cancer panel). Intraperitoneal injection is demonstrated to be efficacious in suppressing A375 (25 & 50 mg/kg/d, 6d/wk) and HCT-116 (50 mg/kg/d, 7 d/wk) tumor growth in mice in vivo. MG-132 (Cat. Nos. 474790, 474787, 474788>, and 474791) effectively prevents BMH-21-induced RPA194 degradation without restoring stalled rRNA synthesis.
生化/生理作用
Cell permeable: yes
Primary Target
rDNA
rDNA
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 6 months at -20°C.
其他说明
Peltonen, K., et al. 2014. Cancer Cell25, 77.
Peltonen, K., et al. 2010. PLoS One5, e12996.
Peltonen, K., et al. 2010. PLoS One5, e12996.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
警示用语:
Warning
危险声明
危险分类
Acute Tox. 4 Oral
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
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