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U7128 Sigma-Aldrich

Uricase from Arthrobacter globiformis

lyophilized powder, 15-30 units/mg protein (biuret)

Synonym: Urate oxidase, Urate:O2 oxidoreductase

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Properties

Related Categories 1.7.x.x Other nitrogenous donors, 1.x.x.x Oxidoreductases, Biochemicals and Reagents, Cell Biology, Enzyme Class Index,
Quality Level   200
form   lyophilized powder
mol wt   tetramer ~32 kDa
storage temp.   −20°C
InChI   1S/C18H23N4O14P.H3N/c23-5-7-14(13(28)16(34-7)22-4-2-10(25)20-18(22)30)36-37(31,32)33-6-8-11(26)12(27)15(35-8)21-3-1-9(24)19-17(21)29;/h1-4,7-8,11-16,23,26-28H,5-6H2,(H,31,32)(H,19,24,29)(H,20,25,30);1H3
InChI key   VPXDHZMLJOJKOX-UHFFFAOYSA-N

Description

Application

Uricase from Arthrobacter globiformis has been used for coating the electrodes in - biosensor fabrication for the detection of uric acid in urine samples. It has also been used for analysing the effect of Zn, Cu, Mg, and Mn ions on uricase.

Packaging

100 units in serum bottle

Biochem/physiol Actions

Arthrobacter globiformis is a major producer of uricase or urate oxidase in the poultry manure and litter. Uricase hydrolyzes uric acid and causes ammonia volatilization in poultry manure. In the majority of mammals, uricase converts uric acid to allantoin, a soluble excretion product. Humans lack uricase due to its loss during the evolution of hominids. This increases the risk of humans towards gout, kidney stone, hypertension and diabetes due to increased circulating levels of uric acid.

Molecular weight: 4 × ~32 KDa (tetramer)
Isoelectric point: is 4.64
KM value (uric acid as substrate): ~ 0.01 mM
The optimum pH for activity: 8.5-9.5
The optimum pH for stability: 6.0-9.5

Zn and Cu were shown to inhibit the activity of uricase.

Unit Definition

One unit will convert 1.0 μmole of uric acid to allantoin per min at pH 9.0 at 25 °C.

Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Danger
Hazard statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
RTECS 
YU7100000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

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Peer-Reviewed Papers
15

References

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