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Cat. No.: RMLIF-10 (for 10μg)

Cat. No.: RMLIF-50 (for 50μg)

Cat. No.: RMLIF-200 (for 200μg)

 

Synonyms    

PF4; C-X-C motif chemokine 4; SCYB4


Purity    

>95% by SDS-PAGE and HPLC analyses.


Biological Activity    

Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human neutrophils is in a concentration of 10-100ng/ml.


Physical Appearance    

Sterile Filtered White lyophilized (freeze-dried) powder.


Formulation    

Lyophilized from a 0.2μm filtered concentrated solution in 20mM PB, 500mM NaCl, pH 7.0.


Endotoxin    

Less than 0.1EU/μg of rBoPF-4/CXCL4 as determined by LAL method.


Reconstitution    

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.


Category    

Chemokines


Background    

Platelet Factor-4 (PF-4) is a small cytokine belonging to the CXC chemokine family that is also known as chemokine (C-X-C motif) ligand 4 (CXCL4). This chemokine is released from alpha-granules of activated platelets during platelet aggregation and neutralizes the anticoagulant effect of heparin. It interacts with a splice variant of the chemokine receptor CXCR3 besides be chemotactic for neutrophils, fibroblasts and monocytes. Recombinant bovine CXCL4 contains 88 amino acids. Specifically, Bovine and sheep CXCL4 share about an 85% identity.


Amino Acid Sequence    

ESSFPATFVP LPADSEGGED EDLQCVCLKT TSGINPRHIS SLEVIGAGTH CPSPQLLATK KTGRKICLDQ QRPLYKKILK KLLDGDES

Only for research and not intended for treatment of humans or animals

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