Recombinant Mouse Chitinase 3-like 1 Protein, CF

Catalog # Availability Size / Price Qty
2649-CH-050

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Recombinant Mouse Chitinase 3-like 1 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 the ability of the immobilized protein to support the adhesion of FaDu human squamous cell carcinoma cells. When 5 x 104 cells per well are added to rmCHI3-L1 coated plate, cell adhesion is enhanced in a dose dependent manner after 30 minutes at 37 °C.  The ED50 for this effect is 0.8-3.2 μg/mL. 

Optimal concentrations should be determined by each laboratory for each application.

Source
Mouse myeloma cell line, NS0-derived mouse Chitinase 3-like 1 protein
Tyr22-Ala381, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Tyr22
Predicted Molecular Mass
41.6 kDa
SDS-PAGE
41 kDa, reducing conditions

Product Datasheets

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2649-CH

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.

2649-CH

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 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: Chitinase 3-like 1

Chitinase 3-like 1 (CHI3L1), also called breast regression protein 39 (BRP39) in mouse, or YKL-40 in humans, is a 39 kDa glycoprotein member of the glycosyl hydrolase 18 family (1 ‑ 4). CHI3L1 was first identified as secreted from cultured articular chondrocytes, synovial cells, and activated monocyte-derived macrophages, but it is also secreted by neutrophils, endothelial cells, vascular smooth muscle cells, and some cancer cells (1, 2, 5 ‑ 7). The mouse CHI3L1 cDNA encodes 381 amino acids (aa), including a 21 aa signal sequence and a 360 aa mature region with two intermolecular disulfides (3). Mature mouse CHI3L1 shares 73%, 75%, 72%, 71%, 70% and 69% aa sequence identity with human, rat, equine, porcine, canine and bovine CHI3L1, respectively. CHI3L1 does not show chitotriosidase activity, but binds chitin and is thus termed a chi-lectin (1 ‑ 4). CHI3L1 can bind heparins, probably as heparan sulfate (3, 7). It has been found to enhance cell adhesion and promote cell signaling, proliferation and tumor angiogenesis (4, 6 ‑ 9). Human elevated serum CHI3L1 levels occur in some conditions characterized by inflammation and connective tissue remodeling, such as arthritis, chronic obstructive pulmonary disease, diabetes, cardiovascular disease, inflammatory bowel disease, and liver cirrhosis (1, 9 ‑ 12). Human single nucleotide polymorphisms that can increase serum CHI3L1 are associated with higher risk for asthma in childhood (13). CHI3L1 is frequently upregulated in glioblastoma, myxoid chondrosarcoma, melanoma and carcinomas of the breast, thyroid, colon, lung, kidney, and ovary (9). In asthma and cancer, serum CHI3L1 concentrations can correlate with prognosis (9, 14, 15). Mice lacking CHI3L1 have markedly diminished antigen-induced Th2 responses, which can be rescued by expression of human CHI3L1 (16).

References
  1. Hakala, B.E. et al. (1993) J. Biol. Chem. 268:25803.
  2. Renkema, G.H. et al. (1998) Eur. J. Biochem. 251:504.
  3. Fusetti, F. et al. (2003) J. Biol. Chem. 278:37753.
  4. Houston, D.R. et al. (2003) J. Biol. Chem. 278:30206.
  5. Volck, B. et al. (1998) Proc. Assoc. Am. Physicians 110:351.
  6. Nishikawa, K.C. and A.J.T. Millis (2003) Exp. Cell Res. 287:79.
  7. Shao, R. et al. (2009) Oncogene 28:4456.
  8. Recklies, A.D. et al. (2002) Biochem. J. 365:119.
  9. Eurich, K. et al. (2009) World J. Gastroenterol. 15:5249.
  10. Letuve, S. et al. (2008) J Immunol. 181:5167.
  11. Rathke, C.N. and H. Vestergaard (2009) Cardiovasc. Diabetol. 8:61.
  12. Johansen, J.S. et al. (1997) Scand. J. Gastroenterol. 32:582.
  13. Ober, C. et al. (2008) N. Engl. J. Med. 358:1682.
  14. Johansen, J.S. et al. (1999) Rheumatology 38:618.
  15. Chupp, G.L. et al. (2007) N. Engl. J. Med. 357:2016.
  16. Lee, C.G. et al. (2009) J. Exp. Med. 206:1149.
Entrez Gene IDs
1116 (Human); 12654 (Mouse); 102138036 (Cynomolgus Monkey)
Alternate Names
AW208766; Brp39; CHI3L1; Chitinase 3 like 1; Chitinase 3-like 1; gp39; HCgp39; YKL-40

Citations for Recombinant Mouse Chitinase 3-like 1 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Chitinase 3-like 1 is neurotoxic in primary cultured neurons
    Authors: C Matute-Bla, L Calvo-Barr, I Carballo-C, R Gonzalo, A Sanchez, M Vila, X Montalban, M Comabella
    Sci Rep, 2020;10(1):7118.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  2. IL-13R?2 uses TMEM219 in chitinase 3-like-1-induced signalling and effector responses
    Nat Commun, 2016;7(0):12752.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Antigen-specific over-expression of human cartilage glycoprotein 39 on CD4+ CD25+ forkhead box protein 3+ regulatory T cells in the generation of glucose-6-phosphate isomerase-induced arthritis.
    Authors: Tanaka Y, Matsumoto I, Inoue A, Umeda N, Takai C, Sumida T
    Clin Exp Immunol, 2014;177(2):419-27.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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Recombinant Mouse Chitinase 3-like 1 Protein, CF
By Do-Hyun Kim on 05/17/2021
Application: Immunoassay Standard