Recombinant Mouse Lumican Protein, CF

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

Recombinant Mouse Lumican Protein, CF Summary

Details of Functionality
Measured by the ability of the immobilized protein to support the adhesion of BCE C/D‑1b bovine corneal endothelial cells. When 5 x 104 cells per well are added to rmLumican coated plates (10 μg/mL, 100 μL/well) ≥ 50% will adhere after 50 minutes at 37 °C.
Optimal dilutions should be determined by each laboratory for each application. Also measured by its ability to modulate collagen fibrillogenesis.
Source
Mouse myeloma cell line, NS0-derived mouse Lumican protein
Gln19-Asn338, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
No results obtained: Gln19 predicted
Protein/Peptide Type
Recombinant Proteins
Gene
Lum
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
37.3 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
55-65 kDa, reducing conditions
Publications
Read Publications using
2745-LU 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 reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
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 Mouse Lumican Protein, CF

  • KSPG lumican
  • LDC
  • LUM
  • lumican proteoglycan
  • Lumican
  • SLRR2D
  • SLRR2DLDCKeratan sulfate proteoglycan lumican

Background

Lumican is a 40 kDa member of the family of small leucine-rich repeat proteoglycans (SLRPs) and the class II subfamily (1). Mouse Lumican is synthesized as a 338 amino acid (aa) precursor that contains an 18 aa signal sequence and a 320 aa mature chain (SwissProt #: 51885). The mature chain contains a negatively charged N-terminal domain containing sulfated tyrosine and disulfide bonds, 12 leucine-rich repeats (LRRs), four potential sites of N-linked glycosylation, and a carboxyl terminal domain containing two conserved cysteines (1). Mature mouse Lumican is 98%, 88%, and 70% aa identical to mature rat, human, and chick Lumican, respectively. SLRPs constitute an important fraction of noncollagenous extracellular matrix proteins (ECM) proteins (1, 2). Lumican is expressed in a variety of tissues, including skin, artery, lung, cornea, kidney, bone, aorta, and articular cartilage (1). Lumican’s role in vivo has been found using Lumican null mice. These mice have functional deficits including corneal opacity as well as skin and tendon fragility associated with disorganized and loosely packed collagen fibers (1, 3-6). The abnormal connective tissue phenotype seen in the Lumican null mice shows the importance of the role of Lumican in collagen fibrillogenesis (1). In addition to the control of collagen fibril assembly, Lumican has been shown to play a role in the regulation of cell proliferation (7, 8), migration (8 - 9), and adhesion (9). Lumican’s overexpression has been reported in carcinoid tumor, breast, colorectal, neuroendocrine, uterine cervical and pancreatic cancers (10).
  1. Nikitovic, D. et al. (2008) IUBMB Life 60:818.
  2. Blochberger, T.C. et al. (1992) J. Biol. Chem. 267:347.
  3. Chakravarti, S. et al. (1998) J. Cell Biol. 141:1277.
  4. Chakravarti, S. et al. (2000) Invest. Ophthalmol. Vis. Sci. 41:3365.
  5. Jepsen, K.J. et al. (2002) J. Biol. Chem. 277:35532.
  6. Chakravarti, S. et al. (2003) Invest. Ophthalmol. Vis. Sci. 44:2422.
  7. Vuillermoz, B. et al. (2004) Exp. Cell Res. 296:294
  8. Nikitovic, D. et al. (2008) FEBS J. 275:350.
  9. D’Onofrio, M.F. et al. (2008) Biochem. Biophys. Res. Commun. 365:266.
  10. Ishiwata, T. et al. (2007) Oncol. Rep. 18:537.

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Publications for Lumican (2745-LU)(2)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 2 applications: Bioassay, Enzyme Substrate.


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Bioassay
(1)
Enzyme Substrate
(1)
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Mouse
(2)
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Bioinformatics

Gene Symbol Lum
Uniprot