T9681
Thrombin from bovine plasma
lyophilized powder, ≥700 NIH units/mg protein (Bradford)
Synonym(s):
Factor IIa
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About This Item
CAS Number:
UNSPSC Code:
12352204
EC Number:
232-648-7
MDL number:
form
lyophilized powder
specific activity
≥700 NIH units/mg protein (Bradford)
UniProt accession no.
storage temp.
−20°C
Gene Information
cow ... F2(280685)
Biochem/physiol Actions
Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.
Physical form
Lyophilized from Tris buffer and sodium chloride
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.
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.
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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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In this issue of Blood, Smith and colleagues report on the functional role of the interaction between these 2 proteins by studying the involved binding sites responsible for clot stabilization.(1)