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Recombinant Human chemokine (C-X-C Motif) Ligand 7

Cat. No.: PPBP-04H PPBP
Product Overview: Recombinant Human NAP-2/CXCL7 produced inE. coliis a single, non-glycosylated polypeptide chain containing 70 amino acids and having a molecular mass of 7.6 kDa.
Description: Neutrophil Activating Peptide 2 (NAP-2) is proteolytically processed carboxyl-terminal fragments of platelet basic protein (PBP) which is found in the alpha-granules of human platelets. NAP-2 is a member of the CXC chemokines. Similar to other ELR domain containing CXC chemokines such as IL-8 and the GRO proteins, NAP-2 has been shown to bind CXCR-2 and to chemoattract and activate neutrophils. Although CTAP-III, β-TG and PBP represent amino-terminal extended variants of NAP-2 and possess the same CXC chemokine domains, these proteins do not exhibit NAP-2 activity. Recently, it has been shown that the additional amino-terminal residues of CTAP-III masks the critical ELR receptor binding domain that is exposed on NAP-2 and may account for lack of NAP-2 activity.
Purity: >97% by SDS-PAGE and HPLC analyses.
Formulation: Lyophilized from a 0.2mm filtered concentrated (1.0mg/ml) solution in 20mM PB, pH 7.4, 50mM NaCl.
Specific Activity: Fully biologically active when compared to standard. Determined by its ability to chemoattract human neutrophils using a concentration range of 1.0-10.0 ng/ml.
Endotoxin: Less than 1EU/mg of rHuNAP-2/CXCL7 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.
Storage: This lyophilized preparation is stable for several weeks at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
Gene Name: PPBP
Synonyms: PBP; TC1; TC2; TGB; LDGF; MDGF; TGB1; B-TG1; CTAP3; CXCL7; NAP-2; SCYB7; THBGB; LA-PF4; THBGB1; Beta-TG; CTAPIII; NAP-2-L1; TGB1;SCYB7; CXCL7_HUMAN; Platelet basic protein [Precursor]; C-X-C motif chemokine 7;Small-inducible cytokine B7;Leukocyte-derived growth factor; LDGF; Macrophage-derived growth factor; MDGF; PPBP; pro-platelet basic protein (chemokine (C-X-C motif) ligand 7)
Gene ID: 5473
mRNA Refseq: NM_002704
Protein Refseq: NP_002695
MIM: 121010
UniProt ID: P02775
Chromosome Location: 4q12-q13
Pathway: Cytokine-cytokine receptor interaction; Leukocyte transendothelial migration; Hemostasis.
Function: chemokine activity;glucose transmembrane transporter activity;growth factor activity.

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