Recombinant Human Ficolin-3 Protein, CF

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Binding Activity
Format
Carrier-Free

Order Details

Recombinant Human Ficolin-3 Protein, CF Summary

Details of Functionality
Measured by its ability to bind biotinylated a-D-Mannose-Polyacrylamide in a functional ELISA.
Source
Mouse myeloma cell line, NS0-derived human Ficolin-3 protein
Lys22-Arg299, with a C-terminal 10-His tag
Accession #
N-terminal Sequence
Lys22
Protein/Peptide Type
Recombinant Proteins
Gene
FCN3
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
30.7 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
37 kDa, reducing conditions
Publications
Read Publications using
2367-FC in the following applications:

Packaging, Storage & Formulations

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 opening.
  • 3 months, -20 to -70 °C under sterile conditions after opening.
Buffer
Supplied as a 0.2 μm filtered solution in PBS and NaCl.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human Ficolin-3 Protein, CF

  • FCN3
  • FCNH
  • Ficolin3
  • Ficolin-3
  • HAKA1
  • H-Ficolin

Background

Human Ficolin-3 (fibrinogen/collagen-like), also called H-ficolin and, previously, Hakata antigen or thermolabile beta -2 macroglycoprotein, is a member of the ficolin family of secreted pattern recognition proteins that belong to the lectin complement activation pathway (1, 2). Ficolin-3 is expressed by bile duct epithelial cells and hepatocytes, and is released into the bile and circulation, where it averages 18 μg/mL (3, 4). It is also secreted by bronchial and alveolar epithelial cells in the lung (3). Mature human Ficolin-3 shares 46% and 52% amino acid (aa) identity with human Ficolin-1 and Ficolin-2, respectively. Ficolin-3 has only been identified in primates and is likely a pseudogene in other species (5). The 35 kDa, 288 aa human Ficolin-3 (isoform 2) contains a signal sequence, an N-terminal collagen domain and a C-terminal fibrinogen-like domain that includes a calcium binding site and two potential N-glycosylation sites. Isoform 1 contains an additional 11 aa between the collagen and fibrinogen-like domains. The collagen domain mediates trimer formation, and a ~650 kDa, 18 subunit oligomer is formed by disulfide links at the N-terminus (2, 6, 7). Ficolin-3 binds a limited set of carbohydrates containing mannose, galactose or D-fucose (2, 6). Binding of microbial carbohydrates has been clearly demonstrated only for the PSA antigen of Aerococcus viridans (4, 8, 9). Pathogen recognition initiates an immune response involving the calcium-dependent interaction of Ficolin-3 with the MBL-associated serine protease (MASP) complex. This cleaves C4 to activate the complement pathway (4, 9). In a secondary role, Ficolins 2 and 3 bind apoptotic cells, activating complement cascades that assist in clearance of the cells (10). Circulating antibodies to Ficolin-3 have been identified in systemic lupus erythematosus (7).

  1. Endo, Y. et al. (2006) Adv. Exp. Med. Biol. 586:265.
  2. Sugimoto, R. et al. (1998) J. Biol. Chem. 273:20721.
  3. Akaiwa, M. et al. (1999) J. Histochem. Cytochem. 47:777.
  4. Krarup, A. et al. (2005) Inf. Immun. 72:1052.
  5. Endo, Y. et al. (2004) Genomics 84:737.
  6. Garlatti, V. et al. (2007) EMBO J. 26:623.
  7. Yae, Y. et al. (1991) Biochim. Biophys. Acta 1078:369.
  8. Tsujimura, M. et al. (2001) Clin. Diag. Lab. Immunol. 8:454.
  9. Matsushita, M. et al. (2002) J. Immunol. 168:3502.
  10. Kuraya, M. et al. (2005) Immunobiology 209:689.

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Publications for Ficolin-3 Isoform 2 (2367-FC)(4)

We have publications tested in 2 confirmed species: Human, Bacteria.

We have publications tested in 3 applications: Binding Assay, Bioassay, ELISA (Standard).


Filter By Application
Binding Assay
(1)
Bioassay
(2)
ELISA (Standard)
(1)
All Applications
Filter By Species
Human
(2)
Bacteria
(2)
All Species

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Bioinformatics

Gene Symbol FCN3
Uniprot