This antibody is specific for Human Platelet Factor IV. AM31850PU-N (clone RTO) is seen to bind free PF4 in the absence of any bound Heparin. This is unlike AM31851PU-N (clone KKO), which binds PF4/heparin complexes to a similar degree as auto-antibodies found in individuals with Heparin-Induced Thrombocytopenia/Thrombosis (HIT/HITT).
Cross-Reactivity (Details)
Species reactivity (tested):Human.
Purification
Protein G Chromatography of Ascitic fluid.
Immunogen
Human Factor IV purified from the supernatant of Thrombin activated platelets.
Optimal working dilution should be determined by the investigator.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
PBS containing 0.02 % Sodium Azide as preservative.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Handling Advice
Avoid repeated freezing and thawing.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody undiluted at 2-8 °C for one month or (in aliquots) at -20 °C for longer.
Target
PF4
(Platelet Factor 4 (PF4))
Alternative Name
Platelet Factor 4 / PF4
Background
Platelet Factor IV (PF4) is a 70 aa protein released from the alpha granules of activated platelets. PF4 is synthesized by bone marrow megakaryocytes and stored in alpha granules as a non-covalent bound tetramer. Platelet factor IV binds with high affinity to heparin and plays a role in inflammation and wound repair. PF4 is a chemoattractant for neutrophils, monocytes and fibroblasts and has been reported to be an immunologic regulator that inhibits suppressor T-cell activity.Synonyms: C-X-C motif chemokine 4, CXCL4, Iroplact, Oncostatin-A, PF-4, SCYB4