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Anti-B2-Glycoprotein I Antibodies

Principle

β2-Glycoprotein I (β2GPI) is a 50 kDa plasma glycoprotein that binds as a cofactor to anionic phospholipids such as cardiolipin. It also interacts with the membranes of activated platelets and endothelial cells, which play a role in the patho

Specimen Requirements

Specimen

Serum

Collection

Collect one 10 mL red-top tube (no anticoagulant or preservative) by standard venipuncture.

Processing

Allow blood to clot and centrifuge at 1600 rpm for 10 minutes to separate serum.

Storage and Transport

  • Room temperature: up to 8 hours
  • 2-8°C: up to 48 hours
  • -20°C or below: for longer storage

Send frozen serum on dry ice. Do not freeze samples in self-defrosting freeze

Minimum Volume

100 µL of serum

Method

Enzyme-Linked Immunosorbent Assay (ELISA)

Normal Range

Negative
Results are reported as negative or positive.

Turnaround Time

7-10 business days

References

  • H. Bas de Laat et al. Clin Immunol. 112:161-168; 2004.
  • Di Simone et al. Ann Rheum Dis. 64:462-467; 2005.