Name Soluble Transferrin Receptor (STfR)
What is STfR STfR is a protein dimer of two identical subunits, linked together by two pairs of disulfide bonds that appear in the plasma during deficiency of iron.
What is it used for STfR detects the iron deficiency anemia and distinguishes it from anemia caused by chronic illness or inflammation.
Source Human Plasma
Purity The Albumin content is < 5 gm/dL in purified STfR (part pure).
Testing method ELISA
Stability 4 years (Real time)
Storage – 20°C
Viral testing Negative for HBs-Ag, Anti-HCV and Anti-HIV I & II using CLIA (US-FDA approved) and for absence of viral DNA/RNA for HBV, HIV and HCV using PCR.

YBL Native STfR salient features

  • Purity percentage: The Albumin content is < 5 gm/dL in purified STfR (part pure).
  • Stability data: STfR is stable for 4 years at -20°C based on real time stability study.
  • Testing Method: ELISA
  • Testing Platform: RAMCO
  • Viral testing: The viral marker test for HBs-Ag, Anti-HCV and Anti-HIV (I and II) was done using CLIA (US-FDA Approved). The antigen was also tested for the absence of viral DNA/RNA for HBV, HIV (I) and HCV using PCR technology.

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