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C3172
Creatininase from microorganisms
lyophilized powder, 100-300 units/mg protein
Synonim(y):
Creatinine Amidohydrolase
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About This Item
Polecane produkty
Postać
lyophilized powder
Poziom jakości
aktywność właściwa
100-300 units/mg protein
masa cząsteczkowa
~175 kDa
skład
Protein, 65-85%
obecność zanieczyszczeń
Creatinase and urease ≤1%
Hexokinase and ATPase ≤0.1%
temp. przechowywania
2-8°C
Zastosowanie
Creatininase from microorganisms may be used in the preparation of amperometric biosensor by co-immobilization with other enzymes for the determination of creatinine.
This enzyme is useful for enzymatic determination of creatinine when coupled with creatine amidinohydrolase, sarcosine dehydrogenase or sarcosine oxidase and formaldehyde dehydrogenase in clinical analysis.
Działania biochem./fizjol.
Creatininase from Pseudomonas sp. is a homohexameric enzyme with a molecular mass of 28.4 kDa per subunit. It is a cyclic amidohydrolase catalysing the reversible conversion of creatinine to creatine. Each monomer contains a binuclear zinc centre near the C termini of the β-strands and the N termini of the main α-helices. These zinc ions indicate the location of the active site.
Właściwości fizyczne
Isoelectric point:4.7
Michaelis constants:3.2 x 10‾2M (Creatinine), 5.7 x 10‾2M (Creatine)
Structure:6 subunits per mol of enzyme (One mol of zinc is bound to each subunit)
Inhibitors:Ag+, Hg++, N-bromosuccinimide, EDTA
Optimum pH:6.5 − 7.5
Optimum temp:70°C
pH Stability:pH 7.5 − 9.0 (5°C, 16hr)
Thermal stability:Below 70°C (pH 7.5, 30 min)
Michaelis constants:3.2 x 10‾2M (Creatinine), 5.7 x 10‾2M (Creatine)
Structure:6 subunits per mol of enzyme (One mol of zinc is bound to each subunit)
Inhibitors:Ag+, Hg++, N-bromosuccinimide, EDTA
Optimum pH:6.5 − 7.5
Optimum temp:70°C
pH Stability:pH 7.5 − 9.0 (5°C, 16hr)
Thermal stability:Below 70°C (pH 7.5, 30 min)
Definicja jednostki
One unit will hydrolyze 1.0 μmole of creatinine to creatine per min at pH 8.0 and 25 °C
Postać fizyczna
Lyophilized powder containing sucrose and BSA as stabilizers
Komentarz do analizy
Protein determined by biuret.
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Hasło ostrzegawcze
Danger
Zwroty wskazujące rodzaj zagrożenia
Zwroty wskazujące środki ostrożności
Klasyfikacja zagrożeń
Resp. Sens. 1
Kod klasy składowania
11 - Combustible Solids
Klasa zagrożenia wodnego (WGK)
WGK 3
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
Środki ochrony indywidualnej
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
Certyfikaty analizy (CoA)
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Protokoły
Assay Procedure for Creatininase
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