BIRT 377

Cat. No. 4776

BIRT 377 C18H15BrCl2N2O2 [213211-10-0]

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Chemical Name: (5R)-5-[(4-Bromophenyl)methyl]-3-(3,5-dichlorophenyl)-1,5-dimethyl-2,4-imidazolidinedione

Biological Activity

Potent negative allosteric modulator of LFA-1 (lymphocyte function-associated antigen-1) (Kd = 26 nM). Binds to the I-domain of LFA-1. Reversibly inhibits LFA-1 mediated binding of SKW3 leukemia cells to ICAM-1. Inhibits superantigen (SEB)-induced IL-2 production from lymphocytes in vitro and attenuates the SEB-induced increase in IL-2 plasma levels in a mouse model in vivo. Orally available.

Technical Data

Soluble to 100 mM in DMSO and to 50 mM in ethanol
>98 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Product Datasheet / Safety Datasheet

References are publications that support the products' biological activity.

Wu et al (2004) Second-generation lymphocyte function-associated antigen-1 inhibitors: 1H-imidazo[1,2-alpha]imidazol-2-one derivatives. J.Med.Chem. 47 5356. PMID: 15481974 .

Last-Barney et al (2001) Binding site elucidation of hydantoin-based antagonists of LFA-1 using multidisciplinary technologies: evidence for the allosteric inhibition of a protein--protein interaction. J.Am.Chem.Soc. 123 5643. PMID: 11403595.

Kelly et al (1999) Cutting edge: a small molecule antagonist of LFA-1-mediated cell adhesion. J.Immunol. 163 5173. PMID: 10553036.

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Citations are publications that use Tocris products.

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Keywords: BIRT 377, supplier, BIRT377, potent, negative, allosteric, modulators, LFA-1, lymphocyte, function-associated, antigen-1, cell, adhesion, orally, available, integrins, Tocris Bioscience, Integrin Modulator products

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