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T6884 Sigma

Thrombin from human plasma

lyophilized powder, ≥2,000 NIH units/mg protein (E1%/280, 18.3)

Synonym: Factor IIa

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Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Analysis Note

The NIH assay procedure uses 0.2 ml diluted plasma (1:1 with saline) as a substrate and 0.1ml of thrombin sample (stabilized in a 1% buffered albumin solution) based on a modification of the method of Biggs. Only clotting times in the range of 15-25 seconds are used for determining thrombin concentrations.

Biochem/physiol Actions

Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.

General description

Thrombin is the final coagulation protease in regard to hemostasis, promoting both procoagulant and anticoagulant effects.

Other Notes

View more information on thrombin at www.sigma-aldrich.com/enzymeexplorer.

Unit Definition

Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard

Physical form

Lyophilized from saline sodium citrate buffer, pH 6.5

Application

Thrombin is used for site specific cleavage of recombinant fusion proteins containing an accessible thrombin recognition site for removal of affinity tags. Thrombin has been used in a study to investigate the protein C pathway in intestinal barrier function.

Price and Availability


Biomedical Applications
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
2

Frequently Asked Questions

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. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
Can a stock solution of Product T6884, Thrombin, be stored frozen?
A suggested stock solution is 100 units/ml. The solution should contain 0.1% BSA for stability and may be stable for about one week at 0-5°C. Since thrombin solutions adsorb to glass, it is recommended to aliquot the solutions in plastic tubes and store at -20°C or below.
What is the molecular weight of Thrombin, Product T6884?
Click the following link to view MW and other information on this product: http://www.sigmaaldrich.com/sigma-aldrich/product_information_sheet/t6884pis.pdf
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. 
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, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

References

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