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L0881

Sigma-Aldrich

Lectin from Arachis hypogaea (peanut)

lyophilized powder, Affinity-purified

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Synonym(s):
PNA, Peanut agglutinin
UNSPSC Code:
12352202
NACRES:
NA.32

form

lyophilized powder

Quality Level

200

potency

<0.1 μg per mL agglutination activity

quality

Affinity-purified

impurities

salt, free

storage temp.

−20°C

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General description

Lectin from Arachis hypogaea (peanut) is a homotetrameric protein of 110 kDa.

Application

Lectin from Arachis hypogaea (peanut) has been used:
  • to detect Thomson-Friedenreich antigen
  • as a component in PBS to study its effects on cell viability
  • to study its ability to block the binding site

Biochem/physiol Actions

Lectin from Arachis hypogaea (peanut) possess specificity towards β -D-Gal(1-3)-D-galNAc residue of Thomson − Friedenreich antigen. It is the most widely used diagnostic and prognostic marker for many squamous cell carcinomas.
PNA does not agglutinate normal human erythrocytes, but strongly agglutinates neuraminidase treated erythrocytes. PNA has potent anti-T activity similar to the anti-T antibody in human sera. The lectin can be used to distinguish between human lymphocyte subsets.

Analysis Note

Agglutination activity is expressed in μg/ml and is determined from serial dilutions in phosphate buffered saline, pH 6.8, of a 1 mg/ml solution. This activity is the lowest concentration to agglutinate a 2% suspension of neuraminidase treated human blood group O erythrocytes after 1 hr incubation at 25 °C.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

动植物源性产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. Is the peanut lectin (Lectin from Arachis hypogaea) a glycoprotein?  If so, what is the carbohydrate content?

    Peanut lectin is not a glycoprotein. Although peanut lectin binds specifically to a particular carbohydrate (beta-gal(1-->3)galNac) in other molecules, the lectin itself does not contain any carbohydrate.  Please see page 231 of the following paper: R. Banerjee, et al., "Crystal structure of peanut lectin, a protein with an unusual quaternary structure".  Proc. Nat. Acad. Sci., USA, 91, 227-231 (1994).

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