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557403

Sigma-Aldrich

RNA Polymerase III Inhibitor

RNA Polymerase III Inhibitor, CAS 577784-91-9, is a cell-permeable inhibitor of RNA Polymerase III (IC₅₀ = 27 and 32 µM for human and S. cerevisiae RNA Pol III, respectively).

Synonym(s):

RNA Polymerase III Inhibitor, ML-60218, N-[1-(3-(5-Chloro-3-methylbenzo[b]thiophen-2-yl-1-methyl-1H-pyrazol-5-yl)]-2-chlorobenzenesulfonamide

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About This Item

Empirical Formula (Hill Notation):
C19H15Cl2N3O2S2
CAS Number:
577784-91-9
Molecular Weight:
452.38
UNSPSC Code:
12352200

Quality Level

100

Assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 15 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C19H15Cl2N3O2S2/c1-11-13-9-12(20)7-8-16(13)27-19(11)15-10-18(24(2)22-15)23-28(25,26)17-6-4-3-5-14(17)21/h3-10,23H,1-2H3

InChI key

BVBDTTLISMIOJY-UHFFFAOYSA-N

General description

A cell-permeable indazolo-sulfonamide compound that displays broad-spectrum inhibitory activity against RNA Polymerase III (IC50 = 27 and 32 µM for human and S. cerevisiae RNA Pol III, respectively). Inhibits cell growth in yeast by preventing RNA Pol III-mediated tRNA transcription. Also available as a 25 mM solution in DMSO (Cat. No. 557404).
A cell-permeable inhibitor of RNA polymerase III (RNA Pol III) (IC50 = 27 µM for human RNA Pol III and 32 µM for Saccharomyces cerevisiae RNA Pol III). Inhibits cell growth in yeast by preventing RNA Pol III-mediated tRNA transcription.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
activity against RNA Polymerase III
Product does not compete with ATP.
Reversible: no
Target IC50: 27 and 32 µM for Human and S. cerevisiae RNA Pol III

Packaging

Packaged under inert gas

Warning

Toxicity: Carcinogenic / Teratogenic (D)

Preparation Note

Slight warming may be necessary to achieve complete solubilization.

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Wu, L., et al. 2003. Euk. Cell2, 256.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jessica M Silva et al.
RNA biology, 8(3), 496-505 (2011-05-03)
More than 98% of the human genome is comprised of non-protein coding sequences. Interestingly, a considerable fraction of these sequences is transcribed into non-protein coding RNA transcripts. These transcripts range in size from very small RNAs such as the miRNAs
Sijie Liu et al.
Cell, 184(5), 1314-1329 (2021-02-25)
End resection in homologous recombination (HR) and HR-mediated repair of DNA double-strand breaks (DSBs) removes several kilobases from 5' strands of DSBs, but 3' strands are exempted from degradation. The mechanism by which the 3' overhangs are protected has not

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