496000

OM99-2

InSolution, ≥90%, analog inhibitor of human brain memapsin 2

• Synonym(e): InSolution OM99-2, EVNLΨAAEF
• Empirische Formel (Hill-System): C₄₁H₆₄N₈O₁₄
• CAS-Nummer: 314266-76-7
• Molekulargewicht: 892.99
• MDL-Nummer: MFCD03452932
• UNSPSC-Code: 12352200
• NACRES: NA.77

Eigenschaften

• Qualitätsniveau: 100
• Assay: ≥90% (HPLC)
• Form: liquid
• Hersteller/Markenname: Calbiochem^®
• Lagerbedingungen: OK to freeze; desiccated; protect from light
• Versandbedingung: ambient
• Lagertemp.: −20°C
• InChI: 1S/C39H60N8O14/c1-18(2)12-24(43-36(57)25(16-29(41)49)45-38(59)32(19(3)4)47-35(56)23(40)15-30(50)51)28(48)13-20(5)33(54)42-21(6)34(55)44-26(17-31(52)53)37(58)46-27(39(60)61)14-22-10-8-7-9-11-22/h7-11,18-21,23-28,32,48H,12-17,40H2,1-6H3,(H2,41,49)(H,42,54)(H,43,57)(H,44,55)(H,45,59)(H,46,58)(H,47,56)(H,50,51)(H,52,53)(H,60,61)/t20-,21+,23+,24+,25+,26+,27+,28+,32+/m1/s1
• InChIKey: JCNFYXCBSRPSLY-QYTLZHMISA-N

Beschreibung

Allgemeine Beschreibung

A peptidomimetic, highly potent, tight-binding transition-state analog inhibitor of human brain β-secretase (K_i = 1.6 nM, recombinant memapsin-2; K_i = 9.58 nM, recombinant pro-memapsin 2). Designed from the template of the β-secretase site of Swedish β-amyloid precursor protein (APP) with Asp to Ala replacement. Includes a nonhydrolyzable hydroxyethylene isostere between Leu and Ala. Also reported to inhibit cathepsin D at higher levels (K_i = 48 nM).

An eight residue peptidomimetic, tight binding transition-state analog inhibitor of human brain memapsin 2 (K_i = 1.6 nM, recombinant memapsin 2; K_i = 9.58 nM, recombinant pro-memapsin 2). Also inhibits cathepsin D (K_i = 48 nM). This aspartyl protease inhibitor is designed from the template of the β-secretase site of Swedish β-amyloid precursor protein (APP) with Asp to Ala replacement; also includes a nonhydrolyzable hydroxyethylene isostere between Leu and Ala.

Biochem./physiol. Wirkung

Cell permeable: no

Primary Target
human brain memapsin 2

Product does not compete with ATP.

Reversible: no

Target K_i: 1.6 nM against recombinant memapsin 2; 9.58 nM against recombinant pro-memapsin 2; 48 nM against cathepsin D

Verpackung

Packaged under inert gas

Warnhinweis

Toxicity: Standard Handling (A)

Sequenz

Glu-Val-Asn-Leu-Ψ-Ala-Ala-Glu-Phe [Ψ denotes replacement of CONH by (S)-CH(OH)CH₂]

Physikalische Form

A 1 mM (250µg in 280 µl) solution in DMSO. Supplied as a trifluoroacetate salt.

Rekonstituierung

Following initial thaw, aliquot and freeze (-20°C). Avoid freeze/thaw cycles of solutions.

Sonstige Hinweise

Ghosh, A.K., et al. 2001. J. Med. Chem.44, 2865.
Turner III, R.T., et al. 2001. Biochemistry40, 10001.
Ghosh, A.K., et al. 2000. J. Am. Chem. Soc.122, 3522.
Hong, L., et al. 2000. Science290,150.

Rechtliche Hinweise

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

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 1
• Flammpunkt (°F): 188.6 °F - closed cup - (Dimethylsulfoxide)
• Flammpunkt (°C): 87 °C - closed cup - (Dimethylsulfoxide)