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Recombinant Human MMR/CD206 Protein Best Seller

Bio-Techne includes R&D Systems | Catalog # 2534-MR

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Carrier Free
2534-MR-050/CF

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With Carrier
2534-MR-050

Key Product Details

Source

NS0

Accession #

Conjugate

Unconjugated

Applications

Binding Activity

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human MMR/CD206 protein
Leu19-Lys1383 (Thr399Ala) & (Leu407Phe), with a C-terminal 6-His tag

Purity

>90%, 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.

N-terminal Sequence Analysis

Leu19

Predicted Molecular Mass

157 kDa

SDS-PAGE

160 kDa, under reducing conditions.

Activity

Measured by its binding ability in a functional ELISA.
When Mannan is coated at 0.2 μg/mL (100 μL/well), the concentration of Recombinant Human MMR/CD206 that produces 50% of the optimal binding response is approximately 0.200-1.20 μg/mL.

Formulation, Preparation and Storage

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.

Carrier: 2534-MR
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 100 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.
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.
Carrier Free: 2534-MR/CF
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile 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.

Background: MMR/CD206

The MMR (macrophage mannose receptor) is also called MR due to its presence on cells other than macrophages, and is designated CD206, Mrc1 (mannose receptor C type 1), or CLEC13D (C‑type lectin domain family 13, member D) (1‑4). CD206 is a 175‑190 kDa endocytic receptor that is expressed on M2 alternatively activated tissue macrophages including tumor‑associated macrophages (TAMs), inflammatory dendritic cells in selected lymphoid organs, and liver, splenic, lymphatic, and dermal microvascular endothelial cells (1, 2, 5‑8). The 1456 amino acid (aa) human CD206 precursor contains a signal sequence (18 aa), an extracellular domain (ECD) containing an N‑terminal cysteine‑rich domain, a fibronectin type II repeat, eight C‑type lectin domains (CTLDs), and several N‑glycosylation sites (1371 aa), a transmembrane segment and a short (46 aa) cytoplasmic domain (2‑4). Metalloproteinases can mediate the shedding of the soluble ECD (2). The human CD206 ECD shares 83%, 84%, 89%, 89% and 90% aa sequence identity with mouse, rat, equine, porcine and canine CD206, respectively. The cysteine‑rich domain recognizes some pituitary hormones such as LH (luteinizing hormone/lutropin) and TSH (thyroid stimulating hormone/thyrotropin), chondroitin sulfates, and sulfated N‑acetylgalactosamines including sulfo‑Lewisa and ‑Lewisx (1, 7, 9). The FNII domain mediates Ca2+‑independent binding of collagens (2, 10). The CTLDs participate in Ca2+‑dependent recognition of branched sugars with terminal mannose, fucose or N‑acetylglucosamine that occur on many pathogenic microorganisms (7, 11). CD206 internalizes ligands in clathrin‑coated vesicles, sorts them to phagosomes or early endosomes, and recycles to the cell surface (1, 6, 7). CD206 also promotes clearance of glycoproteins that promote allergy or ongoing inflammation, such as lysosomal hydrolases and myeloperoxidases (1, 2, 5‑7). It is involved in T cell polarization and production of pro‑ and anti‑inflammatory cytokines (1, 2). It facilitates peptide presentation on MHC II, and cross‑presentation on MHC I which is important for tumor immunogenicity (1, 2, 12). This function may be blocked by engagement of CD206 on TAMs by tumor mucins (8).

References

  1. Gazi, U. and L. Martinez-Pomares (2009) Immunobiology 214:554.
  2. Martinez-Pomares, L. (2012) J. Leukoc. Biol. 92:1177.
  3. Harris, N. et al. (1992) Blood 80:2363.
  4. Taylor, M.E. et al. (1990) J. Biol. Chem. 265:12156.
  5. Chieppa, M. et al. (2003) J. Immunol. 171:4552.
  6. Figdor, C. et al. (2002) Nat. Rev. Immunol. 2:77.
  7. Taylor, P.R. et al. (2005) Trends Immunol. 26:104.
  8. Allavena, P. et al. (2010) Clin. Dev. Immunol. 2010:547179.
  9. Leteux, C. et al. (2000) J. Exp. Med. 191:1117.
  10. Martinez-Pomares, L. et al. (2006) Eur. J. Immunol. 36:1074.
  11. Taylor, M.E. et al. (1992) J. Biol. Chem. 267:1719.
  12. Singh S.K. et al. (2011) Eur. J. Immunol. 41:916.

Long Name

Macrophage Mannose Receptor

Alternate Names

CD206, CLEC13D, MRC1

Entrez Gene IDs

4360 (Human); 17533 (Mouse); 291327 (Rat)

Gene Symbol

MRC1

UniProt

Additional MMR/CD206 Products

Product Documents for Recombinant Human MMR/CD206 Protein

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human MMR/CD206 Protein

For research use only

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