Recombinant soluble transferrin receptor (sTfR) Cat.#


Data Sheet

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Expressed in a mammalian cell line


Soluble extracellular domain of human TfR (amino acid residues 101-760). Molecular weight 73800 Da.
Does not contain any tags.


As a marker of iron deficiency anemia to differentiate it from anemia of chronic disease, in biochemical studies of TfR, as calibrator or standard in immunoassays, immunogen for antibody production.


Purity > 95% (SDS-PAGE in non-reducing conditions)
Concentration is determined spectrophotometrically.


Immunoaffinity chromatography


Lyophilized from 10 mM Tris-HCl, 0.15 M NaCl, pH 8.0 and 5 % D-mannitol, 0.1% CHAPS.

It is recommended to reconstitute this product with deionized water to its initial concentration.


Lyophilized -20°C (-15 … -30 °C allowed)
Reconstituted -70°C (-65 … -80 °C allowed)

Other information:

Avoid repeated freezing and thawing. It is recommended to aliquot the product after reconstitution.

To prepare diluted samples of sTfR it is recommended to use 10 mM Tris-HCl, 0.15 M NaCl, pH 8.0 and 5 % D-mannitol, 0.1% CHAPS. Such samples should be frozen until use.

Do not freeze after reconstitution, if concentration is below 0.1 mg/ml.

Material safety note:

This product is sold for research use only. Standard Laboratory Practices should be followed when handling this material.


See other Transferrin receptor references.
Search references from PubMed.

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