L9518
Lipase from Pseudomonas sp.
Type XIII, lyophilized powder, ≥15 units/mg solid
Sinônimo(s):
Extracellular lipase, Triacylglycerol ester hydrolase, lip, Triacylglycerol acylhydrolase, Triacylglycerol lipase
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About This Item
Produtos recomendados
tipo
Type XIII
forma
lyophilized powder
atividade específica
≥15 units/mg solid
peso molecular
~134 kDa
composição
Protein, 40-65% biuret
temperatura de armazenamento
2-8°C
Descrição geral
Research area: Cell Signaling
Lipases are part of the α/β-hydrolase fold superfamily of enzymes and are expressed in various tissues. For instance, hepatic lipases are found in the liver, lipoprotein lipase is located on the vascular endothelial surface, hormone-sensitive lipases are present in adipocytes, and pancreatic lipase is situated in the small intestine.
Lipases are part of the α/β-hydrolase fold superfamily of enzymes and are expressed in various tissues. For instance, hepatic lipases are found in the liver, lipoprotein lipase is located on the vascular endothelial surface, hormone-sensitive lipases are present in adipocytes, and pancreatic lipase is situated in the small intestine.
Aplicação
Lipase from Pseudomonas sp. has been used:
- for enzymatic determination of triglyceride in serum when coupled with L-α- glycerophosphate oxidase (G3O-301, G3O-311, G3O-321) and glycerol kinase (GYK-301, GYK-311).
- in a study to assess enzymatic synthesis of biodiesel from palm oil assisted by microwave irradiation.
- in determining the triglyceride content for identifying the role of gut bacteria in host health.
- to determine the effect of lipase on high-density lipoprotein 2 (HDL2) and plasma in vitro.
Ações bioquímicas/fisiológicas
Lipase from Pseudomonas was shown to inhibit monocyte chemotaxis in human peripheral blood. It functions by employing chymotrypsin-like hydrolysis, involving a histidine base, a serine nucleophile, and aspartic acid. Lipases are also crucial for lipid transport. Elevated serum lipase levels are often observed in pancreatitis. Lipases are hydrolytic enzymes which break down triacylglycerides into free fatty acids and glycerols.
Tri-, di-, and monoglycerides are hydrolyzed (in decreasing order of rate).
propriedades físicas
Isoelectric point : 5.95 -/+0.05
Inhibitors : Hg++, Ag+, ionic detergents
Optimum pH : 7.0 - 9.0
Optimum temperature : 45 - 50oC
pH Stability : pH 7.0 - 9.0 (25oC, 20hr)
Thermal stability : below 55oC (pH 7.0, 10min)
Inhibitors : Hg++, Ag+, ionic detergents
Optimum pH : 7.0 - 9.0
Optimum temperature : 45 - 50oC
pH Stability : pH 7.0 - 9.0 (25oC, 20hr)
Thermal stability : below 55oC (pH 7.0, 10min)
Definição da unidade
One unit will produce 1.0 μmole of glycerol from a triglyceride per min at pH 7.0 at 37 °C in the presence of bovine serum albumin.
forma física
Lyophilized powder containing Mg+2, sodium cholate, and bovine serum albumin as stabilizers
Nota de análise
Protein determined by biuret.
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
Eyeshields, Gloves, type N95 (US)
Certificados de análise (COA)
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R J Miles et al.
FEMS microbiology letters, 69(3), 283-287 (1992-01-15)
The propionate (Pro), decanoate (Dec) and laurate (Lau) esters of 5-(4-hydroxy-3,5-dimethoxyphenylmethylene)-2-thioxothiazoline++ +-3-acetic acid were assessed as substrates for lipase and esterase. On hydrolysis these substrates yield an intensely red coloured phenol which could be assayed at 505 nm. The Pro
Ming-Cheng Lin et al.
Chemistry and physics of lipids, 146(2), 85-93 (2007-02-06)
1,2-Ethylene-di-N-n-propylcarbamate (1) is characterized as an essential activator of Pseudomonas species lipase while 1,2-ethylene-di-N-n-butyl-, t-butyl-, n-heptyl-, and n-octyl-carbamates (2-5) are characterized as the pseudo substrate inhibitors of the enzyme in the presence of the detergent taurocholate or triton X-100. The
K E Jaeger et al.
Microbial pathogenesis, 10(3), 173-182 (1991-03-01)
Lipase was isolated from P. aeruginosa by ultrafiltration of sterile-filtered culture supernatant. Gel filtration on Sepharose 4B yielded a broad peak corresponding to a molecular mass range of 100 to 1000 kDa. Electron microscopy of a negatively stained lipase preparation
A Gagné et al.
Canadian journal of microbiology, 47(10), 908-915 (2001-11-23)
Eight closely related thermophilic strains were isolated from an aerobic and thermophilic treatment of swine wastes. The pleomorphic cells (short and long rods; cocci) showed peritrichous flagella, terminally swollen sporangium, and liberated spores exhibiting hairy appendages. The Gram reaction was
T Miida et al.
Arteriosclerosis, thrombosis, and vascular biology, 20(11), 2428-2433 (2000-11-14)
Prebeta1-high density lipoprotein (prebeta1-HDL), the initial acceptor of cell-derived cholesterol, can be generated from HDL(2) by hepatic lipase. Because bezafibrate elevates lipase activity, it may increase prebeta1-HDL at the expense of HDL(2). To answer this question, we determined the apolipoprotein
Protocolos
Assay Procedure for Lipase
Enzymatic assay of lipase type XIII from Pseudomonas sp. using a coupled enzyme system of glycerol kinase and glycerophosphate oxidase (EC 3.1.1.3)
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