Thrombin from bovine plasma, lyophilized powder, >=2,000 NIH units/mg protein (E1%/280 = 19.5)

Descriptions

Analysis Note

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.

Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard, Lot K.

Biochem/physiol Actions

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

Other Notes

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

Physical form

Lyophilized from saline sodium citrate buffer, pH 6.5

Unit Definition

Activity is expressed in NIH units obtained by direct comparison to a NIH thrombin reference standard.

Specifications

No detailed specifications are available for this product.

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Code	Description	Quality Level	Manufacturer	Storage Temp.	Form	Price	Quantity
3581465	Thrombin from bovine plasma, lyophilized powder, >=2,000 NIH units/mg protein (E1%/280 = 19.5)	200	SIGMA-ALDRICH	−20°C	lyophilized powder	£251.07 (exc VAT) per EACH	- +
3581466	Thrombin from bovine plasma, lyophilized powder, >=2,000 NIH units/mg protein (E1%/280 = 19.5)	200	SIGMA-ALDRICH	−20°C	lyophilized powder	£551.00 (exc VAT) per EACH	- +
3581467	Thrombin from bovine plasma, lyophilized powder, >=2,000 NIH units/mg protein (E1%/280 = 19.5)	200	SIGMA-ALDRICH	−20°C	lyophilized powder	£914.71 (exc VAT) per EACH	- +
3581468	Thrombin from bovine plasma, lyophilized powder, >=2,000 NIH units/mg protein (E1%/280 = 19.5)	200	SIGMA-ALDRICH	−20°C	lyophilized powder	£158.79 (exc VAT) per EACH	- +