T9549
Thrombin from bovine plasma
powder, suitable for cell culture, ≥1,500 NIH units/mg protein (E1%/280 = 19.5)
Synonym(s):
Factor IIa
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About This Item
CAS Number:
UNSPSC Code:
12352204
EC Number:
232-648-7
MDL number:
Product Name
Thrombin from bovine plasma, powder, suitable for cell culture, ≥1,500 NIH units/mg protein (E1%/280 = 19.5)
form
powder
specific activity
≥1,500 NIH units/mg protein (E1%/280 = 19.5)
mol wt
heavy chain ~31 kDa
light chain ~6 kDa
technique(s)
cell culture | mammalian: suitable
UniProt accession no.
shipped in
dry ice
storage temp.
−20°C
Gene Information
cow ... F2(280685)
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Analysis Note
Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard, Lot K.
The NIH assay procedure uses 0.2 mL of diluted plasma (1:1 with saline) as a substrate and 0.1 mL 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.
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 expression and purification system for the biosynthesis of adenosine receptor peptides for biophysical and structural characterization.
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
Activity is expressed in NIH units, and is measured by direct comparison to an NIH thrombin reference standard.
View more information on thrombin at www.sigma-aldrich.com/enzymeexplorer.
Preparation Note
When reconstituted with 1 mL water, vial contains stated activity in 0.15 M sodium chloride and 0.05 M sodium citrate, pH 6.5.
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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