5.05763

ProRS Inhibitor, Halofuginone

• 別名: ProRS Inhibitor, Halofuginone, STENOROL, HF, Hydrobromide, prolyl-tRNA synthetase Inhibitor, trans-(±)-7-Bromo-6-chloro-3-[3-(3-hydroxy-2-piperidinyl)-2-oxopropyl]-4(3H)-quinazolinone hydrobromide
• 実験式（ヒル表記法）: C₁₆H₁₇BrClN₃O₃ · xHBr
• CAS番号: 64924-67-0
• 分子量: 414.68 (free base basis)
• MDL番号: MFCD23843776
• UNSPSCコード: 12352200
• NACRES: NA.77

特性

• アッセイ: ≥98% (HPLC)
• 品質水準: 100
• フォーム: powder
• 有効性: 18 nM IC₅₀
• メーカー／製品名: Calbiochem^®
• 保管条件: OK to freeze; protect from light
• 色: white
• 溶解性: DMSO: 100 mg/mL
• 保管温度: 2-8°C
• SMILES記法: [Br-].Brc1cc2c(cc1Cl)C(=O)N(C=N2)CC(=O)CC3NCCC[C@H]3O.[H+]
• InChI: 1S/C16H17BrClN3O3.BrH/c17-11-6-13-10(5-12(11)18)16(24)21(8-20-13)7-9(22)4-14-15(23)2-1-3-19-14;/h5-6,8,14-15,19,23H,1-4,7H2;1H/t14?,15-;/m1./s1
• InChI Key: SJUWEPZBTXEUMU-NUNOUFIPSA-N

詳細

詳細

A cell-permeable racemic mixture of Halofuginone whose D-(+)/(2R, 3S) enantiomer serves as the active inhibitor against ProRS-mediated aminoacylation by simultaneously preventing ProRS-catalyzed Pro-AMP formation and the subsequent Pro transfer from Pro-AMP to tRNA^Pro. Proline, but not other NEAA, is able to reverse the inhibitory effect of HF in in vitro rabbit reticulocyte lysate translations (1 µM HF; 1 mM Pro) and prevent HF-induced cellular AAR pathway activation (100 nM HF/2 mM Pro/MEF; 10 nM HF/1 mM Pro/Murine CD4⁺ CD25^- T cells). Shown to inhibit bFGF-induced neovascularization in a murine corneal angiogenesis model (5 mg/kg/d via food intake) and significantly reduce the severity of MOG33-55-induced EAE in mice (2 µg/mouse/d i.p.) in vivo. Unlike AA-AMP mimetics, HF does not compete against ATP for ProRS binding.

A cell-permeable racemic mixture of Halofuginone, a halogenated derivative of the Dichroa febriguga alkaloid Febrifugine, whose D-(+)/(2R, 3S) enantiomer serves as the active inhibitor against ProRS- (prolyl-tRNA synthetase) mediated aminoacylation by simultaneously targeting/blocking ProRS Proline-binding pocket with its hydroxypiperidine and tRNA 3′ end adenosine-binding site with its halogenated 4-quinazolinone, preventing not only ProRS-catalyzed prolyl adenylation (Pro-AMP formation), but also the subsequent Pro transfer from Pro-AMP to tRNA^Pro. Consistently, only proline, but not other NEAA, is able to reverse the inhibitory effect of HF in in vitro rabbit reticulocyte lysate translations (1 µM HF; 1 mM Pro) and prevent HF-induced cellular AAR (amino acid response) pathway activation (100 nM HF/2 mM Pro/MEF; 10 nM HF/1 mM Pro/Murine CD4⁺ CD25^- T cells). Shown to inhibit bFGF-induced neovascularization in a murine corneal angiogenesis model (5 mg/kg/day via food intake) and significantly reduce the severity of myelin antigen MOG33-55-induced autoimmune EAE/encephalomyelitis in mice (2 µg/mouse/day i.p.) in vivo. Unlike AA-AMP mimetics, HF does not compete against ATP for ProRS binding. ATP, in its ProRS bound state, actually helps stabilize HF via hydrogen bond interactions.

生物化学的／生理学的作用

Primary Target
prolyl-tRNA synthetase

包装

Packaged under inert gas

警告

Toxicity: Standard Handling (A)

再構成

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

その他情報

Zhou, H., et al. 2013, Nature494, 121.

Keller, T.L., et al. 2012, Nat. Chem. Biol.12, 311.

Sundrud, M.S., et al. 2009, Science324, 1334.
Elkin, M., et al. 2000, FASEB J.14, 2477.
Elkin, M., et al. 1999, Clin. Cancer Res.5, 1982.

法的情報

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

安全性情報

• ピクトグラム: GHS06,GHS09
• シグナルワード: Danger
• 危険有害性情報: H300 + H310 + H330 - H315 - H319 - H410
• 注意書き: P262 - P264 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310
• 危険有害性の分類: Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2
• 保管分類コード: 6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable