Measured by its binding ability in a functional ELISA.
When rhRAGE/Fc Chimera (Catalog # 1145-RG) is coated at 2 μg/mL (100 μL/well), rhS100A12 binds with an apparent KD <30 nM.
This protein also enhances integrin activation on neutrophils as measured by flow cytometric analysis using beta 2 integrin activation reporter antibody mAb 24.
Optimal dilutions should be determined by each laboratory for each application.
Source
E. coli-derived human EN-RAGE/S100A12 protein Met1-Glu92
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
10.6 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
8 kDa, reducing condtions
Publications
Read Publications using 1052-ER in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 200 μg/mL in PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human EN-RAGE Protein, CF
CAAF1
CAAF1Neutrophil S100 protein
CAAFI
CAGC
CAGCS100 calcium binding protein A12 (calgranulin C)
CAGCS100
Calcium-binding protein in amniotic fluid 1
Calgranulin C
calgranulin-C
CGRPEN-RAGE
ENRAGE
EN-RAGE
Extracellular newly identified RAGE-binding protein
MRP6
p6calgranulin C
protein S100-A12
S100 calcium binding protein A12
S100 calcium-binding protein A12 (calgranulin C)
S100 calcium-binding protein A12
S100A12
Background
EN-RAGE, also known as S100A12 and Calgranulin C, is a 10 kDa member of the S100 (soluble in 100% saturated ammonium sulfate) family of EF-hand calcium-binding proteins. Like other S100 proteins, S100A12 is small and generally acidic (1 - 3). EN-RAGE forms noncovalent homodimers in the absence of divalent cations (4 - 6); calcium and zinc promote the formation of higher order assemblies including tetramers and hexamers (4, 7, 8). The ability of S100A12 to chelate zinc enables it to inhibit the zinc-dependent metalloproteases MMP-2, -3, and -9 (8). S100A12 also forms heterodimers with S100A9 and binds to RAGE (Receptor for Advanced Glycation End-products), Annexin V, and several cytosolic enzymes involved in energy metabolism (9, 10). The hexameric form of EN-RAGE in particular binds RAGE with high affinity (7). EN-RAGE induces a variety of inflammatory responses including the in vivo recruitment of neutrophils, monocytes, and mast cells and the activation of mast cells and vascular endothelial cells (9, 11 - 14). EN-RAGE is found at elevated levels under inflammatory conditions such as asthma, gout, rheumatoid arthritis synovial fluid, and atherosclerosis (8, 12, 14). S100A12 also promotes neurite outgrowth in isolated hippocampal neurons (15). An ortholog of S100A12 has not been identified in rodents, but the human protein is functional in mice and rats (11 - 16).
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Leclerc, E. et al. (2009) Biochim. Biophys. Acta 1793:993.
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Goyette, J. et al. (2009) J. Immunol. 183:593.
Hatakeyama, T. et al. (2004) Eur. J. Biochem. 271:3765.
Hofmann, M.A. et al. (1999) Cell 97:889.
Yang, Z. et al. (2001) J. Leukoc. Biol. 69:986.
Rouleau, P. et al. (2003) Clin. Immunol. 107:46.
Yan, W.X. et al. (2008) J. Biol. Chem. 283:13035.
Yang, Z. et al. (2007) J. Allergy Clin. Immunol. 119:106.
Mikkelsen, S.E. et al. (2001) J. Neurochem. 79:767.
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