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Violacein

(Synonyms: 紫色杆菌素) 目录号 : GC45145

A bacterial metabolite with antibacterial and antiprotozoal activities

Violacein Chemical Structure

Cas No.:548-54-9

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1mg
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Sample solution is provided at 25 µL, 10mM.

Description

Violacein is a bacterial metabolite originally isolated from C. violaceum that has antibacterial and antiprotozoal activities.[1] [2] It is produced by C. violaceum as a purple pigment in response to N-hexanoyl homoserine lactone , a property that has been modified to create a strain of C. violaceum used in detecting quorum-sensing molecules.[3] Violacein is active against Gram-positive bacteria, including B. subtilis and S. aureus (MICs = 0.8 and 1.6 µM, respectively). It is also active against P. falciparum, including chloroquine-susceptible and -resistant strains (IC50s = 0.85 and 0.63 µM, respectively).[2] It reduces parasitemia in a mouse model of nonlethal P. chabaudi chabaudi infection when administered at a dose of 7.5 mg/kg and increases survival in a mouse model of lethal P. chabaudi chabaudi infection. Violacein permeabilizes the cytoplasmic membrane of bacterial cells but does not affect the cell wall.[1]

Reference:
[1]. Cauz, A.C.G., Carretero, G.P.B., Saraiva, G.K.V., et al. Violacein targets the cytoplasmic membrane of bacteria. ACS Infect. Dis. 5(4), 539-549 (2019).
[2]. Lopes, S.C.P., Blanco, Y.C., Justo, G.Z., et al. Violacein extracted from Chromobacterium violaceum inhibits Plasmodium growth in vitro and in vivo. Antimicrob. Agents Chemother. 53(5), 2149-2152 (2009).
[3]. Blosser, R.S., and Gray, K.M. Extraction of violacein from Chromobacterium violaceum provides a new quantitative bioassay for N-acyl homoserine lactone autoinducers. J. Microbiol. Methods 40(1), 47-55 (2000).

化学性质

Cas No. 548-54-9 SDF
别名 紫色杆菌素
化学名 (3E)-3-[1,2-dihydro-5-(5-hydroxy-1H-indol-3-yl)-2-oxo-3H-pyrrol-3-ylidene]-1,3-dihydro-2H-indol-2-one
Canonical SMILES O=C(N1)/C(C2=C1C=CC=C2)=C3C(NC(C4=CNC5=C4C=C(O)C=C5)=C/3)=O
分子式 C20H13N3O3 分子量 343.3
溶解度 Soluble in DMSO 储存条件 Store at -20°C, protect from light
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储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。
Shipping Condition 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。

溶解性数据

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1 mg 5 mg 10 mg
1 mM 2.9129 mL 14.5645 mL 29.129 mL
5 mM 0.5826 mL 2.9129 mL 5.8258 mL
10 mM 0.2913 mL 1.4565 mL 2.9129 mL
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