Recombinant Human S100A11 Protein, CF

Catalog # Availability Size / Price Qty
9015-S11-050
R&D Systems Recombinant Proteins and Enzymes
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Recombinant Human S100A11 Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its binding ability in a functional ELISA. When Recombinant Human ANXA-2 is immobilized at 0.5 µg/mL (100 µL/well), the concentration of Recombinant Human S100A11 that produces 50% of the optimal binding response is approximately 0.4-2.4 μg/mL.
Source
E. coli-derived human S100A11 protein
Ala2-Thr105
Accession #
N-terminal Sequence
Analysis
Ala2
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
12 kDa
SDS-PAGE
9 kDa, reducing conditions

Product Datasheets

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9015-S11

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.

9015-S11

Formulation Lyophilized from a 0.2 μm filtered solution in PBS and DTT with Trehalose.
Reconstitution Reconstitute at 500 μg/mL in PBS.
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.
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Background: S100A11

S100A11, also known as S100C and Calgizzarin, is a 10 kDa member of the S100 family of calcium binding proteins (1-3). Human S100A11 contains two EF hand motifs and shares 82% amino acid sequence identity with mouse and rat S100A11. It forms covalent homodimers upon transglutamination and also disulfide-linked tetramers (4, 5). S100A11 is secreted by keratinocytes and can be crosslinked into the cornified envelope of the skin (6). Dimerization enhances its ability to signal through RAGE on keratinocytes, induce the production of EGF family proteins, and induce cell proliferation (7). Dimerization also enables S100A11 to bind RAGE on chondrocytes, leading to chondrocyte hypertrophy and catabolism of the cartilage matrix (4). S100A11 is additionally found in the cytosol where it becomes phosphorylated and translocates to the nucleus in response to DNA damage, RELM alpha exposure, or elevated extracellular calcium concentrations (8-10). Calcium also promotes S100A11 association with S100B as well as Annexins A1, A2, and A6 (5, 11-13). S100A11-Annexin A2 complexes are recruited to sites of plasma membrane damage where they facilitate membrane repair in migrating cancer cells (13). S100A11 is upregulated in various cancers and supports tumor cell proliferation, invasion, and migration (7, 14). In addition, S100A11 is produced in the ovary, and it acts on cumulus cells to inhibit oocyte fertilization (15).

References
  1. Donato, R. et al. (2013) Curr. Mol. Med. 13:24.
  2. Liu, Y. et al. (2015) Br. J. Pharmacol. 172:1664.
  3. Tanaka, M. et al. (1995) Cancer Lett. 89:195.
  4. Cecil, D.L. and R. Terkeltaub (2008) J. Immunol. 180:8378.
  5. Chang, N. et al. (2007) Am. J. Physiol. Cell Physiol. 292:C1417.
  6. Robinson, N.A. et al. (1997) J. Biol. Chem. 272:12035.
  7. Sakaguchi, M. et al. (2007) Mol. Biol. Cell 19:78.
  8. Gorsler, T. et al. (2010) BMC Cell Biol. 11:100.
  9. Fan, C. et al. (2011) Mol. Cell Proteomics 10:M110.000901.
  10. Sakaguchi, M. et al. (2003) J. Cell Biol. 163:825.
  11. Deloulme, J.C. et al. (2000) J. Biol. Chem. 275:35302.
  12. Mailliard, W.S. et al. (1996) J. Biol. Chem. 271:719.
  13. Jaiswal, J.K. et al. (2014) Nat. Commun. 5:3795.
  14. Liu, Y. et al. (2015) Exp. Ther. Med. 9:1460.
  15. Hanaue, M. et al. (2011) Mol. Reprod. Dev. 78:91.
Long Name
S100 Calcium Binding Protein A11
Entrez Gene IDs
6282 (Human); 20195 (Mouse); 445415 (Rat)
Alternate Names
Calgizzarin; Metastatic lymph node gene 70 protein; MLN 70; MLN70; protein S100-A11; Protein S100-C; S100 calcium binding protein A11; S100 calcium-binding protein A11 (calgizzarin); S100 calcium-binding protein A11; S100A11; S100C; S100CS100 calcium binding protein A11 (calgizzarin)

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