T7572

Thrombin from human plasma

400-1000 NIH units/mg protein

• Synonym(s): Factor IIa
• CAS Number: 9002-04-4
• UNSPSC Code: 12352204
• NACRES: NA.54
• EC Number: 232-648-7
• MDL number: MFCD00082072
• EC Number: 3.4.21.5 (BRENDA, IUBMB)
• Specific activity: 400-1000 NIH units/mg protein

Properties

• form: lyophilized powder
• Quality Segment: 200
• specific activity: 400-1000 NIH units/mg protein
• impurities: HIV, hepatitis B and hepatitis C, tested negative
• UniProt accession no.: P00734
• storage temp.: −20°C
• Gene Information: human ... F2(2147)

Description

General description

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

Lyophilized powder containing sucrose, sodium chloride and Tris.

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 assess an innovative flow cytometric approach for small-size platelet microparticles.

Biochem/physiol Actions

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

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.

Other Notes

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

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

Disclaimer

RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.