Human SDF-1 beta Recombinant

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Human SDF-1 beta Recombinant


accession P48061

Source Optimized DNA sequence encoding Human Stromal Cell-Derived Factor-1 beta mature chain was expressed in Escherichia Coli.
Molecular weight Native human SDF-1 beta, generated by the proteolytic removal of the signal peptide and propeptide,the molecule has a calculated molecular mass of approximately 8 kDa. Recombinant Stromal Cell-Derived Factor-1 beta is a monomer protein consisting of 72 amino acid residue subunits, migrates as an approximately 8 kDa protein under non-reducing and reducing conditions in SDS-PAGE.
Purity >97%, as determined by SDS-PAGE and HPLC
Biological Activity Determined by its ability to chemoattract human peripheral T cells activated with PHA and IL-2 using a concentration range of-40 ng/ml.

Endotoxin Endotoxin content was assayed using a LAL gel clot method. Endotoxin level was found to be less than.1 ng/µg(1EU/µg).
Presentation SDF-1 beta was lyophilized from a0.2μm filtered concentrated (1.0mg/ml) solution inmM PB, pH7.0,mM NaCl.
Reconstitution A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than.1 mg/mL. This solution can then be diluted into other buffers.
Storage The lyophilized protein is stable for at least years from date of receipt at -20° C. Upon reconstitution, this cytokine can be stored in working aliquots at° -° C for one month, or at -20° C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.
Usage This cytokine product is for research purposes only.It may not be used for therapeutics or diagnostic purposes.

Interactor P15172
Biological Process Chemotaxis
Molecular function Cytokine
Molecular function Growth-factor