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Recombinant Human NAP-2 (PPBP) (CXCL7)

The chemokine neutrophil- activating peptide 2 (NAP-2) is a 70-amino acid residue polypeptide that is formed from platelet-derived precursors by proteolytic processing. Mature NAP-2 stimulates various effector functions of polymorphonuclear neutrophil granulocytes (PMN) including directed chemotactic migration, exocytosis of lysosomal enzymes and secondary granule contents, and up-regulation of adhesion receptors. NAP-2 has been assigned to a subfamily now termed alpha-chemokines. The alpha-chemokines contain four cysteine residues at highly conserved positions which enclose the core region of the molecules. The first two cysteines are separated by a single amino acid, forming a motif (CXC) that distinguishes the alpha-chemokine from the beta-chemokine subfamily, where these cysteines are in directly adjacent position.

Product Specifications

Gene Name

PPBP

Gene Aliases

CXCL7, PBP (parent molecule), CTAP-III (precursor), Platelet basic protein, C-X-C motif chemokine 7, Leukocyte-derived growth factor, LDGF, Macrophage-derived growth factor, MDGF, Small-inducible cytokine B7, SCYB7, TGB1, THBGB1, NAP2<br/>Recombinant Human Neutrophil Activating Peptide-2 (PPBP)

Gene ID

5473

Accession Number

P02775

Organism

Human

Source

E. coli

Concentration

<1.0 EU/μg of recombinant protein as determined by the LAL method.

Purity

>95% as determined by SDS-PAGE

Solubility

A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.

Function

Determined by its ability to chemoattract human monocytes using a concentration range of 2.0-40.0 ng/mL.

Molecular Weight

8

Shipping Conditions

Ambient Temperature

Storage Conditions

The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°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.

Appearance

Lyophilized Powder

Formulation

Lyophilized from a 0.2 μm filtered 20 mM PB,100 mM NaCl solution pH 7.5.

CAS Number

9000-83-3

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