P9752
Phosphoriboisomerase from spinach
Type I, partially purified powder, ≥40 units/mg protein (biuret)
Synonym(s):
D-Ribose-5-phosphate ketol-isomerase
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
Recommended Products
biological source
spinach
type
Type I
form
partially purified powder
specific activity
≥40 units/mg protein (biuret)
storage temp.
−20°C
Application
Phosphoriboisomerase is used to study the ribulose monophosphate pathway. Phosphoriboisomerase from spinach is used in enzyme assays to convert ribose 5-phosphate to ribulose 5-phosphate.
Biochem/physiol Actions
Phosphoriboisomerase is responsible for the converstion of ribose 5-phosphate to ribulose 5-phosphate.
Unit Definition
One unit will convert 1.0 μmole of D-ribose 5-phosphate to D-ribulose 5-phosphate per min at pH 7.7 at 30 °C.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Rare sugars are used for many industrial and medical purposes and are produced by the interconversion between aldoses and ketoses catalyzed by sugar and sugar-phosphate isomerases. Recently, Clostridium thermocellum d-ribose-5-phosphate isomerase (CTRPI), an aldose-ketose isomerase, was cloned in order to
Soo-Jin Yeom et al.
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The activity of ribose-5-phosphate isomerases (RpiB) from Clostridium difficile for D-ribose isomerization was optimal at pH 7.5 and 40 degrees C, while that from Thermotoga maritima for L-talose isomerization was optimal at pH 8.0 and 70 degrees C. C. difficile
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This study reports syntheses of d-allose 6-phosphate (All6P), D-allulose (or D-psicose) 6-phosphate (Allu6P), and seven D-ribose 5-phosphate isomerase (Rpi) inhibitors. The inhibitors were designed as analogues of the 6-carbon high-energy intermediate postulated for the All6P to Allu6P isomerization reaction (Allpi
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Two previously unreported inborn errors of metabolism occur in the reversible part of the pentose phosphate pathway. Deficiency of ribose-5-phosphate isomerase has been described in one patient who suffered from a progressive leukoencephalopathy and developmental delay. Transaldolase deficiency has been
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