Recombinant Mouse Chitotriosidase/CHIT1 Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 5325-GH

R&D Systems, part of Bio-Techne
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5325-GH-010
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Key Product Details

Source

NS0

Accession #

Q9D7Q1

Conjugate

Unconjugated

Applications

Enzyme Activity

View all Chitotriosidase/CHIT1 Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived mouse Chitotriosidase/CHIT1 protein
Ala22-Ser464 (major) & Lys23-Ser464 (minor), both with a C-terminal 6-His tag

Purity

>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala22 & Lys23

Predicted Molecular Mass

50 kDa

SDS-PAGE

54-57 kDa doublet, reducing conditions

Activity

Measured by its ability to cleave 4-Methylumbelliferyl-beta -D-N,N’,N”-triacetylchitotriose (4-MU-TACT).
The specific activity is >400 pmol/min/μg, as measured under the described conditions.

Formulation, Preparation and Storage

5325-GH
Formulation Supplied as a 0.2 μm filtered solution in Tris and NaCl.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Background: Chitotriosidase/CHIT1

Chitotriosidase, encoded by the mouse CHIT1 gene, is a typical member of the chitinase family (1). It is distinct from another member known as acidic mammalian chitinase (AMC), encoded by the CHIA gene, in several aspects. AMC/CHIA is expressed mainly in alveolar macrophages and in both the mouse and human gastrointestinal tract (2). CHIT1, however, is expressed exclusively by phagocytes in humans and in the gastrointestinal tract, tongue, fore-stomach, and Paneth cells of the small intestine in mice (2). Both CHIA and CHIT1 are secreted as 50 kDa proteins. In contrast to CHIA, CHIT1 is not stable under acidic pH and can be processed into a C-terminally truncated 39 kDa form (2‑4). Human CHIT1 is the best of three biomarkers in the monitoring of Gaucher disease (5). The other two commonly used markers include acid phosphatase and angiotensin-converting enzyme (ACE) (5). Human CHIT1 is also a specific marker of macrophage activation in acute ischemic stroke (6).

References

  1. Zheng, T. et al. (2005) Gene 357:37.
  2. Boot, R.G. et al. (2006) J. Histochem. Cytochem. 53:1283.
  3. Boot, R.G. et al. (2001) J. Biol. Chem. 276:6770.
  4. Renkema, G.H. et al. (1997) Eur. J. Biochem. 244:279.
  5. Vellodi, A. et al. (2005) J. Inherit. Metab. Dis. 28:585.
  6. Sotgiu, S. et al. (2005) Eur. Neurol. 54:149.

Alternate Names

CHI3, CHIT1

Entrez Gene IDs

1118 (Human)

Gene Symbol

CHIT1

UniProt

Q9D7Q1

Additional Chitotriosidase/CHIT1 Products

Product Documents for Recombinant Mouse Chitotriosidase/CHIT1 Protein, CF

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Product Specific Notices for Recombinant Mouse Chitotriosidase/CHIT1 Protein, CF

For research use only

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