Recombinant Hirudin Protein


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Product Details

Applications Func, PAGE, Bioactivity

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Recombinant Hirudin Protein Summary

A biologically active protein to Hirudin.

Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in Pichia Pastoris, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
The biological activity of hirudin protein is determined by chromogenic assay, 1 unit is defined as the amount of Hirudin that neutralizes 1 unit of the WHO preparation 89/588 of thrombin. The specific activity is no less than 14,000 ATU/mg protein.
Protein/Peptide Type
Recombinant Protein
>95% pure by SDS-PAGE
Endotoxin Note
Less than 1 EU/ug of rHirudin as determined by LAL method.


Theoretical MW
6.7 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Store at -20C. Avoid freeze-thaw cycles.
Lyophilized from a 0.2 um filtered solution of 20 mM PBS, pH 7.0, containing 2 % mannitol.
>95% pure by SDS-PAGE
Reconstitution Instructions
Reconstitute with sterilized distilled water or aqueous buffer containing 0.1 % BSA to aconcentration of 0.1 - 1.0 mg/ml.


This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Recombinant Hirudin Protein

  • Hirudin 1
  • Lepirudin
  • Refludan


Hirudin is the most potent natural thrombin-specific protease inhibitor, and is originally derived in the salivary glands of the medicinal leech. Unlike heparin, hirudin act directly on thrombin, rather than through other clotting factors. They have a high binding affinity and specificity for thrombin. Therefore, hirudin prevents or dissolves the formation of clots and thrombi, and has therapeutic value in blood coagulation disorders, in the treatment of skin hematomas and of superficial varicose veins, either as an injectable or a topical application cream.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Array NBP2-34956

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