跳轉至內容
Merck
全部照片(5)

重要文件

L3024

Sigma-Aldrich

脂多糖 来源于大肠杆菌 0111:B4

purified by ion-exchange chromatography, TLR ligand tested

同義詞:

LPS

登入查看組織和合約定價
全部照片(5)

About This Item

CAS號碼:
93572-42-0
EC號碼:
297-473-0
MDL號碼:
MFCD00164401
分類程式碼代碼:
12352201
NACRES:
NA.25
暫時無法取得訂價和供貨情況

生物源

Escherichia coli (O111:B4)

品質等級

200

形狀

lyophilized powder

純化經由

ion-exchange chromatography

雜質

<1% Protein
<1% RNA

顏色

white to yellow cast

溶解度

water: soluble

運輸包裝

ambient

儲存溫度

2-8°C

尋找類似的產品？ 前往 產品比較指南

相關類別

一般說明

该产品是从大肠杆菌血清型O111：B4中提取的，并已通过离子交换进行纯化。来源菌株来自私人保藏。该LPS血清型已用于刺激B细胞并诱导人肝细胞中的NOS。

應用

脂多糖（LPS）是革兰氏阴性菌细胞壁的特征组分。LPS及其脂质A部分可通过能够识别常见的病原体相关分子模式（PAMP）的Toll样受体蛋白家族成员Toll样受体4（TLR4）刺激先天性免疫系统细胞。

生化／生理作用

脂多糖（LPS）位于膜的外层，并且在非包封的菌株中暴露在细胞表面上。它们有助于外膜的完整性，并保护细胞免受胆汁盐和亲脂性抗生素的作用。

準備報告

该产品可溶于水（5mg/mL）或细胞培养基（1mg/mL），并产生浑浊的淡黄色溶液。在涡旋震荡并升温至70-80℃后，可在盐水溶液中获得更加浓缩但仍然浑浊的溶液（20mg/mL）。脂多糖可在各种溶剂中形成胶束。在水和磷酸盐缓冲盐水中可观察到浑浊的溶液。通过有机溶剂无法获得更澄清的溶液。在甲醇会产生含有漂浮物的混浊悬浮液，而在水中则产生均匀的浑浊溶液。

其他說明

为了全面了解我们针对客户研究提供的各种脂多糖产品，建议您访问我们的碳水化合物分类页面。

相關產品

產品號碼
描述
訂價

象形圖

Skull and crossbones
GHS06

訊號詞

Danger

危險聲明

H300

危險分類

Acute Tox. 2 Oral

儲存類別代碼

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

水污染物質分類（WGK）

WGK 3

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
0000417198
0000417198
0000417195
0000417195
0000417197

未看到正確版本？

如果您需要一個特定的版本，您可以透過批號來尋找特定憑證。

搜尋 COA

已經擁有該產品？

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

Yoshitomo Hayama et al.
Journal of immunology (Baltimore, Md. : 1950), 200(11), 3790-3800 (2018-04-25)
Amino acid metabolism plays important roles in innate immune cells, including macrophages. Recently, we reported that a lysosomal adaptor protein, Lamtor1, which serves as the scaffold for amino acid-activated mechanistic target of rapamycin complex 1 (mTORC1), is critical for the
Carl-Fredrik Johnzon et al.
Frontiers in immunology, 9, 1487-1487 (2018-07-11)
Mastitis is an inflammatory condition of the mammary tissue and represents a major problem for the dairy industry worldwide. The present study was undertaken to study how experimentally induced acute bovine mastitis affects inflammatory parameters and changes in the metabolome.
F T Silvestre et al.
Journal of dairy science, 94(5), 2285-2301 (2011-04-29)
The objectives were to evaluate the effects of differential supplementation of Ca salts (CS) of fatty acids (FA) on plasma acute phase proteins and both FA composition and function (i.e., activity and cytokine production) of neutrophils, during the peripartum and
Sharon Elazar et al.
Veterinary research, 41(1), 10-10 (2009-10-16)
Mastitis, inflammation of the mammary tissue, is a common disease in dairy animals and mammary pathogenic Escherichia coli (MPEC) is a leading cause of the disease. Lipopolysaccharide (LPS) is an important virulence factor of MPEC and inoculation of the mammary
Carol L Ladner-Keay et al.
Prion, 10(6), 466-483 (2016-12-03)
Conversion of native cellular prion protein (PrPc) from an α-helical structure to a toxic and infectious β-sheet structure (PrPSc) is a critical step in the development of prion disease. There are some indications that the formation of PrPSc is preceded
查看所有相關論文

文章

Lipopolysaccharides for Research – Structure, Function & Applications

Explore the structure, function, and diverse applications of Lipopolysaccharides. Discover their role in bacteria, serological specificity, and research potential.

相關內容

Lipopolysaccharides

Lipopolysaccharide (LPS) is a major component of Gram-negative bacteria, important for microbiological research.

脂多醣體

脂多醣 (LPS) 是革蘭氏陰性細菌的主要成分，對微生物研究非常重要。

Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. what is the molecular weight of LPS catalog #L3024?

    1 answer

    1. The molecular weight of this product has not been determined. In general, the molecular weight of native LPS may range from 1 – 4 million Daltons or higher. When treated with SDS and heat, the molecular weight of LPS may range from 50 to 100 kDa.

      Helpful?

  4. Does the product represent lipid A of LPS with six-acyl chain (hexa-acylated) ?

    1 answer

    1. L3024 is an LPS that contains the lipid A moiety. LPS products that are described as "detoxified" have a lipid A moiety that has been partially delipidated by alkaline hydrolysis. Removal of the fatty acid portions of lipid A results in a detoxified LPS with an endotoxin level about 10,000 times lower than that of the parent LPS. This product is not detoxified.

      Helpful?

Reviews

No rating value

Active Filters

我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務