Recombinant Rat CXCL2/CINC-3 Protein, CF 25 UG_标准物质_产品

Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to induce myeloperoxidase release from cytochalasin B-treated human neutrophils. Schröder, J.M. et al. (1987) J. Immunol. 139:3474. The ED ₅₀ for this effect is 1‑3 µg/mL. Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with human CXCR2. The ED ₅₀ for this effect is 5-25 ng/mL.
Source
E. coli-derived Ser32-Asn100
Accession #
N-terminal Sequence
Analysis
Ser32
Predicted Molecular Mass
7.6 kDa

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

525-C3/CF		525-C3
Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.		Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.		Reconstitution Reconstitute at 25 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.		Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.		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.

Background: CXCL2/GRO beta/MIP-2/CINC-3

Cytokine-induced neutrophil chemoattractant 3 (CINC-3) has been found to be expressed by cytokine-stimulated rat alveolar macrophages and fibroblasts. Based on its protein and DNA sequences, CINC-3 (also known as rat MIP-2, GRO beta and CXCL2) is a member of the alpha (CXC) subfamily of chemokines.

CINC-3 cDNA encodes a 100 amino acid (aa) residue precursor protein with a 31 aa signal peptide that is cleaved to yield a 69 aa mature secreted protein. The protein sequence of rat CINC-3 shares approximately 88% identity with murine MIP-2. Characteristic of ELR containing CXC chemokines, CINC-3 is known to be a potent chemotactic factor for rat neutrophils in vitro and in vivo. On the basis of cross-desensitization results of the various CINC proteins, it has been postulated that rat neutrophils have at least two classes of CINC receptors: a class of CINC-3 specific receptors as well as a second common receptor shared by all CINCs.

References:

Nakagawa, H. et al. (1994) Biochem. J. 301:545.
Huang, S. et al. (1992) Am. J. Pathol. 141:981.

Entrez Gene IDs:
2920 (Human); 20310 (Mouse); 114105 (Rat)
Alternate Names:
chemokine (C-X-C motif) ligand 2; CINC-2a; CINC3; CINC-3; C-X-C Motif Chemokine 2; CXCL2; GRO beta; GRO2 oncogene; GRO2; GROB; Gro-beta; Growth-regulated protein beta; Macrophage inflammatory protein 2-alpha; melanoma growth stimulatory activity beta; MGSA beta; MGSA-b; MGSA-beta; MIP2; MIP-2; MIP2A; MIP-2a; MIP2-alpha; SCYB2