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5.06384

Sigma-Aldrich

BLM Helicase Inhibitor, ML216

Synonym(s):

BLM Helicase Inhibitor, ML216, 1-(4-Fluoro-3-(trifluoromethyl)phenyl)-3-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)urea, ML-216, ML-216, 1-(4-Fluoro-3-(trifluoromethyl)phenyl)-3-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)urea

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About This Item

Empirical Formula (Hill Notation):
C15H9F4N5OS
CAS Number:
Molecular Weight:
383.32
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥97% (HPLC)

Quality Level

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

orange

solubility

DMSO: 10 mg/mL

storage temp.

2-8°C

General description

A cell-permeable pyridinyl-thiadiazolylurea compound that selectively blocks Bloom′s syndrome protein (BLM) helicase activity of both full-length as well as truncated BLM636-1298 forms (IC50 = 2.98 and 0.97 µM, respectively). Competes with and reversibly blocks DNA binding to BLM. However, the inhibition appears to be non-competitive with respect to ATP. Exhibits anti-proliferative activity in cells expressing BLM, but not in those lacking BLM. Induces sister chromatid exchanges (SCEs) and enhances the sensitivity of BLM containing PSNF5 cells to aphidicolin (>Cat. No. 178273) without affecting PSNG13 cells that are devoid of BLM. Displays favorable microsomal (T1/2 >1.2 h) and plasma stability (~100% at 5 h).

Biochem/physiol Actions

Cell permeable: yes
Primary Target
BLM
Reversible: yes

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Rosenthal, A.S., et al. 2013. Bioorg. Med. Chem. Lett. 23, 5660.
Nguyen, G.H., et al. 2013. Chem. Biol.20, 55.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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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