SAE0052
Chitotriosidase human
recombinant, expressed in HEK 293 cells
Synonyme(s) :
Chitinase-1, Chitotriosidase-1
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About This Item
Produits recommandés
Produit recombinant
expressed in HEK 293 cells
Niveau de qualité
Pureté
98% (SDS-PAGE)
Forme
lyophilized powder
Activité spécifique
≥15,000 units/μg protein
Poids mol.
50 kDa
Conditions d'expédition
ambient
Température de stockage
−20°C
Description générale
Chitotriosidase (CT) is a human chitinase with catalytic activity upon the substrate chitin, a polymer of ?-1,4-N-acetylglucosamine. The mature CT consists of 445 amino acids, and contains a potential N-glycosylation site as well as three intrachain disulfide bonds.
Application
The enzymatic activity of recombinant human CT is measured by its ability to hydrolyze the substrate 4-Methylumbelliferyl beta -D-N,N′,N”-triacetylchitotriose (Cat. # M5639). This enzymatic hydrolysis releases 4-methylumbelliferone (4MU), which upon ionization in basic pH, can be measured fluorimetrically at an excitation wavelength of 340 nm and an emission wavelength of 465 nm. The use of fluorimetric substrates provides a very sensitive detection system.
Actions biochimiques/physiologiques
CT is currently the most reliable biomarker in Gaucher disease - serum and plasma CT 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.
Séquence
AKLVCYFTNWAQYRQGEARFLPKDLDPSLCTHLIYAFAGMTNHQLSTTEWNDETLYQEFNGLKKMNPKLKTLLAIGGWNFGTQKFTDMVATANNRQTFVNSAIRFLRKYSFDGLDLDWEYPGSQGSPAVDKERFTTLVQDLANAFQQEAQTSGKERLLLSAAVPAGQTYVDAGYEVDKIAQNLDFVNLMAYDFHGSWEKVTGHNSPLYKRQEESGAAASLNVDAAVQQWLQKGTPASKLILGMPTYGRSFTLASSSDTRVGAPATGSGTPGPFTKEGGMLAYYEVCSWKGATKQRIQDQKVPYIFRDNQWVGFDDVESFKTKVSYLKQKGLGGAMVWALDLDDFAGFSCNQGRYPLIQTLRQELSLPYLPSGTPELEVPKPGQPSEPEHGPSPGQDTFCQGKADGLYPNPRERSSFYSCAAGRLFQQSCPTGLVFSNSCKCCTWNGHHHHHHHHGQ
Définition de l'unité
One unit is defined as the amount of CT required to produce 1 pmol of 4-Methylumbelliferone from 4-Methylumbelliferyl beta -D-
N′,N”-triacetylchitotrioside per minute at 25 °C, pH 5.6.
N′,N”-triacetylchitotrioside per minute at 25 °C, pH 5.6.
Forme physique
Supplied as a lyophilized powder containing phosphate buffered saline
Code de la classe de stockage
10 - Combustible liquids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
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Zhi Liao et al.
PloS one, 14(7), e0219699-e0219699 (2019-07-20)
For understanding the structural characteristics and the proteome of Perna shell, the microstructure, polymorph, and protein composition of the adult Perna viridis shell were investigated. The P. viridis shell have two distinct mineral layers, myostracum and nacre, with the same
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