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Human Chitotriosidase / Chitinase 1 / CHIT1 Protein (His Tag)

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Human CHIT1 Protein Product Information
Synonym:CHI3, CHIT, FLJ00314, MGC125322
Protein Construction:A DNA sequence encoding the human CHIT1 (NP_003456.1) (Met 1-Asn 466) precursor was fused with a polyhistidine tag at the C-terminus.
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human CHIT1 Protein QC Testing
Purity:> 94 % as determined by SDS-PAGE
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Ala 22
Molecule Mass:The recombinant human CHIT1 consists of 456 amino acids after removal of the signal peptide and has a predicted molecular mass of 50.8 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh CHIT1 is approximately 48 kDa.
Formulation:Lyophilized from sterile 12.5mM Tris, 75mM NaCl, 50% glycerol, pH 7.5
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human CHIT1 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Other CHIT1 Recombinant Protein Products
Chitotriosidase/Chitinase 1/CHIT1 Background

Chitotriosidase, also known as Chitinase-1 and CHIT1, is a member of the glycosyl hydrolase 18 family and Chitinase class II subfamily. It is a member of the mammalian chitinase family, structurally homologous to chitinases from other species, is synthesized and secreted by specifically activated macrophages. Chitotriosidase is a polymer of N-acetylglucosamine. Serum and plasma chitotriosidase activity is usually measured as the first step in diagnosis of Gaucher disease. Monitoring chitotriosidase activity is widely used during treatment of this pathology by enzyme replacement therapy. Its elevated plasma level reflects gradual intralysosomal accumulation in Gaucher cells (lipid-loaded macrophages). Macrophages overloaded by the enzyme accumulated in lysosomal material (lipids) were shown to secrete chitotriosidase; its increased expression was noted in several lysosomal storage diseases and atherosclerosis. In addition to lipid storage disorders, where Chit activity has longer been used as a marker of disease activity and therapeutic response, elevation of plasma Chit may occur in hematological disorders with storage of erythrocyte membrane breakdown products as thalassemia and different systemic infectious diseases sustained by fungi and other pathogens. Recently, increased Chit activity was demonstrated in CNS from patients with different neurological disorders. Chitotriosidase is believed to play a role in mechanisms of immunity and protection against chitin-containing pathogens.

Human Chitotriosidase/Chitinase 1/CHIT1 References
  • Barone R, et al. (2007) Plasma chitotriosidase in health and pathology. Clin Lab. 53(5-6): 321-33.
  • Bargagli E, et al. (2008) Human chitotriosidase: a potential new marker of sarcoidosis severity. Respiration. 76(2): 234-8.
  • Korolenko TA, et al. (2010) Chitotriosidase of human macrophages and mammalian chitinases: biological functions and abnormalities in pathology. Vestn Ross Akad Med Nauk. (11): 39-45.
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    Catalog: 11223-H08H-10
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