Merck
All Photos(3)

L2880

Sigma-Aldrich

リポポリサッカリド 大腸菌055:B5由来

purified by phenol extraction

Synonym(s):
LPS
EC Number:
MDL番号:
NACRES:
NA.25

由来生物

Escherichia coli (O55:B5)

品質水準

形状

lyophilized powder

精製方法

phenol extraction

不純物

<3% Protein (Lowry)

輸送温度

ambient

保管温度

2-8°C

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1 of 4

This Item
L2630L4005L2637
biological source

Escherichia coli (O55:B5)

biological source

Escherichia coli (O111:B4)

biological source

Escherichia coli (O55:B5)

biological source

Escherichia coli (O55:B5)

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

impurities

<3% Protein (Lowry)

impurities

-

impurities

1-10% Protein (Lowry)

impurities

<3% Protein

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

300

Quality Level

300

Quality Level

200

Quality Level

200

purified by

phenol extraction

purified by

phenol extraction

purified by

trichloroacetic acid extraction

purified by

gel-filtration chromatography

詳細

リポ多糖(LPS)は、抗原性のあるO-多糖に結合した脂質Aから成ります。
Lipopolysaccharides (LPS) are glycolipids, a combination of carbohydrate units linked with single or multiple fatty acids that are found in the cell wall of Gram-negative bacteria. The LPS is an essential component of the outer membrane and the LPS structure is composed of lipid A, a glucosamine-based phospholipid, a short-core oligosaccharide, and an O-antigen, a distal polysaccharide.

アプリケーション

Escherichia coli O55:B5由来のリポ多糖は以下に使用されています:
  • 肝細胞や非実質細胞の刺激
  • 脾臓の刺激や、ダントウボウ中のMalitaf遺伝子の発現実験
  • 天然化合物ヘスペレチン効果を調べるための、コンカナバリンA(ConA)およびD-ガラクトサミン/リポ多糖(D-GalN/LPS)劇症肝炎モデル
リポ多糖(LPS)類はグラム陰性細菌の細胞壁に特徴的な化合物です。LPSおよびそのリピド A 部分は、共通の病原体関連分子構造を認識する Toll 様受容体タンパク質ファミリー(PAMPs)の一員である Toll 様受容体 4(TLR4)により、自然免疫系細胞を刺激します。

生物化学的/生理学的作用

脂質Aは、内毒素LPSに起因する生物学的性質の一定の役割を持ちます。LPSは、免疫応答を促進する、免疫原性の強い抗原です。
Lipopolysaccharides (LPS) sets up a protective permeability barrier that blocks the entry of antibiotics and bile salts, which make Gram-negative bacteria innately resistant. LPS is involved in bacterial pathogenicity as the host immune system primarily encounters the LPS component of the bacteria. LPS is an endotoxin and a highly immunogenic antigen that can enhance the immune system. The lipid A of LPS stimulates host cells via toll-like receptors 4 (TLR4).

ピクトグラム

Skull and crossbones

シグナルワード

Danger

危険有害性情報

危険有害性の分類

Acute Tox. 2 Oral

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

個人用保護具 (PPE)

Eyeshields, Gloves, type N95 (US)


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