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Merck
모든 사진(1)

주요 문서

S4881

Sigma-Aldrich

Staphylococcal enterotoxin B from Staphylococcus aureus

동의어(들):

Enterotoxin B, Staphylococcal, SEB

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About This Item

CAS Number:
MDL number:
UNSPSC 코드:
12352202
NACRES:
NA.25
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포함

sodium phosphate buffer as balance

Quality Level

구성

Protein, ~25% Lowry

재고 정보

not available in USA

불순물

Staphylococcal enterotoxin A (SEA), essentially free

응용 분야

metabolomics
vitamins, nutraceuticals, and natural products

저장 온도

2-8°C

유사한 제품을 찾으십니까? 방문 제품 비교 안내

애플리케이션

Staphylococcal enterotoxin B (SEB) which binds to MHC class II molecules and specific Vβ regions of T cell receptors (TCR), resulting in the activation of both monocytes/macrophages and T lymphocytes may be used as a superantigen and immune system activator. SEB may be used as a reference material in the development of SEB detection systems.

생화학적/생리학적 작용

A superantigen for T-lymphocytes. Activator of the immune system that binds to major histocompatibility complex (MHC) antigens[1] and CD28.[2]

포장

Package size based on protein content.

관련 제품

제품 번호
설명
가격

픽토그램

Skull and crossbones

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 1 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

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

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Clarifying the mechanism of superantigen toxicity.
John D Fraser
PLoS biology, 9(9), e1001145-e1001145 (2011-09-21)
Oliver G Weingart et al.
Sensors (Basel, Switzerland), 12(2), 2324-2339 (2012-03-23)
Prevalent incidents support the notion that toxins, produced by bacteria, fungi, plants or animals are increasingly responsible for food poisoning or intoxication. Owing to their high toxicity some toxins are also regarded as potential biological warfare agents. Accordingly, control, detection
Winnie Bergstedt et al.
PloS one, 5(6), e11277-e11277 (2010-07-02)
Tuberculin is still the only available skin test reagent for the diagnosis of mycobacterial infection. The product has a remarkable sensitivity, but poor specificity. Previous studies, including two human phase I clinical trials, have indicated that rdESAT-6 has a potential
A Herman et al.
Annual review of immunology, 9, 745-772 (1991-01-01)
Superantigens combine with MHC class-II molecules to form the ligands that stimulate T cells via the V beta element of the T-cell receptor. Two groups of superantigens have been described so far: first, endogenous murine products that include the Mls
Bacterial superantigens
Proft, T. and Fraser, J.D.
Clinical and Experimental Immunology, 133, 299-299 (2008)

질문

1–4 / 4 질문  
  1. What is the difference in effects on T-lymphocyte proliferation between PHA and SEB? Thank you

    1 답변
    1. T-cells stimulated with SEB produce high levels of IFN-γ, while PHA-stimulated T-cells produce little or no IFN-γ. For more information, refer to the reference at the following link: https://pmc.ncbi.nlm.nih.gov/articles/PMC1906565/#:~:text=%2Dcells%20(Fig.-,1).,compared%20to%20CD4+%20T%2Dcells

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

    1 답변
    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

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

    1 답변
    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

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  4. こんにちは、この商品の容量をお聞きしたいのですが、1MGと表記されている場合、1miligramということでしょうか? 溶かしてから調剤したいのですが。 溶かして調剤する際のプロトコルはあるのでしょうか?

    1 답변
    1. Yes, the 1MG does stand for one milligram. The product is soluble in water at 4 mg/ml. It may also be dissolved in an aqueous buffer such as PBS. See the link below to the product information sheet for additional solution stability information:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/126/857/s4881pis.pdf

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