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554715-M

Millipore

Retro-2

A cell-permeable tricyclic imine compound that inhibits the endosome-to-Golgi retrograde transport, but not cellular uptake, of CtxB, StxB without affecting cellular uptake/trafficking of Tf or EGF.

Synonym(s):

Retro-2, Cholera Toxin Retrograde Transport Blocker, Ricin Retrograde Transport Blocker, SLT Retrograde Transport Blocker, 2-(((5-Methyl-2-thienyl)methylene)amino)-N-phenylbenzamide

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About This Item

Empirical Formula (Hill Notation):
C19H16N2OS
Molecular Weight:
320.41
UNSPSC Code:
12352200

Quality Level

Assay

≥95% (HPLC)

form

powder

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

tan

solubility

DMSO: 50 mg/mL

storage temp.

2-8°C

General description

A cell-permeable tricyclic imine compound that inhibits the endosome-to-Golgi retrograde transport, but not cellular uptake, of CtxB (Cholera toxin B chain), StxB (Shiga-like toxin B chain), and the plant toxin ricin from castor seed in HeLa cells (20 µM), without affecting cellular uptake and trafficking of Tf (Transferrin), EGF, and vesicular stomatitis virus glycoprotein VSVGts045. Retro-2 is demonstrated to selectively affect the cellular distribution of SNARE proteins Synt5 and Synt6, but not 24 other Golgi and endocytic pathway proteins. Retro-2 pretreatment is shown to effectively protect against ricin-, Stx1-, and Stx2-induced cytotoxicity in HeLa cultures in vitro (Fold of protection against 4 h toxin incubation = 2.7, 22, and 65, respectively, with 0.5 h 20 µM Retro-2 pretreatment), as well as ricin-induced (2 µg/kg by nasal spray) fatality in mice in vivo (0 mortality with one 200 mg/kg i.p. dose 1h prior to toxin exposure).

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
It is recommended to prepare a stock solution for 3 month use each time and store the unreconstituted material in solid form, protected from moisture and preferably under inert gas, for best long-term stability during storage.

Other Notes

Stechmann, B., et al. 2010. Cell141, 231.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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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