产品详情
简单介绍：
Recombinant Human Platelet Factor-4/CXCL4
详情介绍：
- Synonyms
- Iroplact, Oncostatin-A
- Accession
- P02776
- GeneID
- 5196
- Source
- Escherichia coli.
- Molecular Weight
- Approximately 7.8 kDa, a single non-glycosylated polypeptide chain containing 70 amino acids.
- AA Sequence
- EAEEDGDLQC LCVKTTSQVR PRHITSLEVI KAGPHCPTAQ LIATLKNGRK ICLDLQAPLY KKIIKKLLES
- Purity
- > 97 % 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 fibroblasts is in a concentration of 1.0-10 ng/ml.
- Physical Appearance
- Sterile Filtered White lyophilized (freeze-dried) powder.
- Formulation
- Lyophilized from a 0.2 μm filtered concentrated solution in Acetonitrile and TFA.
- Endotoxin
- Less than 1 EU/μg of rHuPF-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 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions.
- Stability & Storage
-
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 3 months, -20 to -70 °C under sterile conditions after reconstitution. - Usage
- SDS-PAGE
-
- 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). The gene for human CXCL4 is located on human chromosome 4. 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 human CXCL4 contains 70 amino acids binds with high affinity to heparin. Specifically, Human and mouse CXCL4 share about a 60 % identity.
This material is offered by Shanghai PrimeGene Bio-Tech for research, laboratory or further evalsuation purposes. NOT FOR HUMAN USE.
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