Contact Us   Having technical issues or questions regarding this product?
Please Contact Us.
BEI Resources currently limits the total number of "Made to Order" items which can be ordered by a registrant to 10 "Made to Order" items per 6 month period. Please check the Availability Status on the items you are ordering and limit orders appropriately.
NR-2620   Ricin Toxin B Subunit, from Ricinus communis Seeds
Price: All BEI Resources products are provided
at no cost to registered researchers.
Description: Ricin Toxin B Subunit, from Ricinus communis Seeds
Organism: Ricinus communis
Biosafety Level: 1
Availability Status: In Stock
Store at: -20°C or colder
Contributor: AD O'Brien, JF Sinclair
Quantity limit per order for this item is 1. This item can be ordered twice a year. Orders over this limit will be sent to NIAID for approval before shipment.

Ricin toxin is a glycoprotein that can be isolated from the seeds of the castor bean plant Ricinus communis (R. communis). Structurally, ricin toxin consists of two polypeptide chains, A and B, that are linked by a disulfide bond. The A chain of ricin toxin catalytically inactivates the eukaryotic 28S ribosomal RNA subunit resulting in the inhibition of protein synthesis and death of the cell. The ricin toxin B chain is a galactose-specific lectin that mediates the binding and delivery of the toxin to target cells. The sequence of the R. communis gene for the ricin toxin precursor protein has been reported (GenBank: X03179).

NR-2620 was purified from NR-720 ricin holotoxin by ion-exchange chromatography.

Each vial of NR-2620 contains 60 to 70 µg of ricin toxin B subunit suspended in 20 mM phosphate buffer (pH 7.2).
Citations: Acknowledgment for publications should read "The following reagent was obtained through BEI Resources, NIAID, NIH: Ricin Toxin B Subunit, from Ricinus communis Seeds, NR-2620."
Additional Information: NR-2620 MSDS
For a list of permits that may be required for shipping this product and to set the permit information preferences; please select a country from the drop down below.

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.

Click to read more
Ricin Toxin, Isolated from Ricinus communis Seeds
Return to Top

Notices and Disclaimers

BEI Resources products are intended for laboratory research purposes only. They are not intended for use in humans.

While BEI Resources uses reasonable efforts to include accurate and up-to-date information on this site, BEI Resources makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. BEI Resources does not warrant that such information has been confirmed to be accurate.

Back to My Search