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Inhibitor SourceBook™ Second Edition

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Calbiochem • <strong>Inhibitor</strong> SourceBook<br />

Neurobiology/Neurodegeneration<br />

Product Cat. No. Comments Size Price<br />

InSolution g-Secretase <strong>Inhibitor</strong><br />

XIX<br />

565787 {(2S,3R)-3-(3,4-Difluorophenyl)-2-(4-fluorophenyl)-4-hydroxy-N-<br />

((3S)-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl)butyramide}<br />

Supplied as a 5 mM ( 00 mg/37 ml) solution in DMSO. A cell-permeable,<br />

highly potent g-secretase inhibitor (IC 50 = 60 pM towards Ab 40<br />

secretion in SH-SY5Y cells overexpressing spbA4CTF).<br />

N g-Secretase <strong>Inhibitor</strong> XX 565789 A cell-permeable, potent g-secretase inhibitor. Significantly lowers<br />

both the brain and plasma Ab 40 levels by ~72% in Tg2576 mutant APP<br />

transgenic mouse model ( 00 mM/kg, b.i.d.). Also potently inhibits<br />

Notch processing (IC 50 = .7 nM in SupT cells), and induces conversion<br />

of proliferative crypt cells into post-mitotic goblet cells in both<br />

C57BL/6 and APC Min mouse model ( 0 mM/kg, i.p.).<br />

N g-Secretase <strong>Inhibitor</strong> XXI 565790 A cell-permeable, potent, and selective peptidomimetic and nontransition-state<br />

analog inhibitor of g-secretase and Notch processing<br />

(IC 50 = 300 pM for Ab 40 in CHO cells overexpressing wild type bAPP;<br />

240 pM for Ab 40 , 370 pM Ab 42 and 320 pM for NICD, respectively, in<br />

HEK293 cells stably transfected with bAPP 695 and mNotchDE(M 727V);<br />

00 pM for both Ab 40 and Ab 42 in SH-SY5Y cells stably transfected<br />

with SPA4CT). Also lowers Ab levels in several APP transgenic mouse<br />

model. Reported to bind to presenilins and suppress the proteolytic<br />

ability to cleave several transmembrane protein substrates, including<br />

APLP and APLP2, CD44, ErbB4, E-cadherin, low density lipoprotein<br />

receptor-related proteins, Notch ligands, and p75 NTR . Yet, at higher<br />

concentrations (200-400 mM) only weakly affects presenilin activity.<br />

N<br />

Secretase <strong>Inhibitor</strong>s, continued<br />

g -Secretase <strong>Inhibitor</strong> I 40 565765 [N-trans-3,5-Dimethoxycinnamoyl)-Ile-leucinal; t-3,5-DMC-IL-CHO]<br />

A potent, cell-permeable, reversible inhibitor of g-secretase that<br />

preferentially inhibits the secretion of Ab (>90%) vs. Ab (~ 5%).<br />

-40 -42<br />

IC = ~ 5 mM for Ab , ~22 mM for Ab , and >50 mM for Ab in<br />

50 total -40 -42<br />

CHO cells stably transfected with cDNA encoding bAPP695. Reported<br />

to be be about 0-fold more potent than Z-Val-Phe-CHO (MDL 28 70;<br />

Cat. No. 208722).<br />

g -Secretase <strong>Inhibitor</strong> II 40 565766 (N-tert-Butyloxycarbonyl-Gly-Val-Valinal)<br />

A cell-permeable, substrate-based (g -site) g-secretase inhibitor that<br />

40<br />

is reported to preferentially (> 90%) inhibit Ab cleavage at site 40 vs.<br />

42, in a dose-dependent fashion, in transiently transfected 293T cells<br />

over-expressing APP695NL.<br />

Related Products<br />

InnoZyme TACE Activity Kit<br />

The InnoZyme TACE Activity Kit is a specific and sensitive assay kit<br />

designed to measure human TACE activity in cell lysates and biological<br />

samples and for screening enzyme inhibitors. An anti-human TACE<br />

monoclonal antibody pre-coated on a 96-well plate captures human<br />

TACE. The activity of captured TACE is measured using an internally<br />

quenched fluorescent substrate, MCA-KPLGL-Dpa-AR-NH 2 . Cleavage<br />

of the scissile amide bond, G-L, releases the fluorophore from the<br />

quenching molecule, Dpa, resulting in an increase in fluorescence.<br />

The level of fluorescence is directly related to the enzyme activity.<br />

kit = 96 tests<br />

Cat. No. CBA042 1 kit $425<br />

00 mg $ 73<br />

500 mg $ 9<br />

500 mg $ 9<br />

mg $99<br />

mg<br />

5 mg<br />

$50<br />

$ 79<br />

Technical Support<br />

Phone 800 628 8470<br />

E-mail calbiochem@emdbiosciences.com<br />

03

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