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Literature summary for 5.1.3.1 extracted from

  • Terada, T.; Mukae, H.; Ohashi, K.; Hosomi, S.; Mizoguchi, T.; Uehara, K.
    Characterization of an enzyme which catalyzes isomerization and epimerization of D-erythrose 4-phosphate (1985), Eur. J. Biochem., 148, 345-351.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
HgCl2 0.1 mM, 100% inhibition of D-ribulose-5-phosphate 3-epimerase activity Bos taurus
potassium phosphate 10 mM, 49% inhibition of D-ribulose-5-phosphate 3-epimerase activity Bos taurus
Sodium sulfate 20 mM, 65% inhibition of D-ribulose-5-phosphate 3-epimerase activity Bos taurus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22500
-
2 * 22500, SDS-PAGE Bos taurus
43000
-
gel filtration Bos taurus

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Bos taurus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Bos taurus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
9.05
-
substrate D-erythrose 4-phosphate, pH 7.0, 30°C Bos taurus
6570
-
substrate D-ribulose-5-phosphate, pH 7.0, 30°C Bos taurus

Storage Stability

Storage Stability Organism
4°C, 10 mM Bistris/HCl buffer (pH 7.0), stable for about six months without any loss of enzymatic activity Bos taurus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-erythrose 4-phosphate reaction of EC 5.1.3.1 Bos taurus D-erythrulose 4-phosphate
-
?
D-ribulose-5-phosphate
-
Bos taurus D-xylulose 5-phosphate
-
?

Subunits

Subunits Comment Organism
dimer 2 * 22500, SDS-PAGE Bos taurus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
65
-
10 min, stable Bos taurus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Bos taurus

pH Stability

pH Stability pH Stability Maximum Comment Organism
6.5 9.5 22 h, 0°C, stable Bos taurus

pI Value

Organism Comment pI Value Maximum pI Value
Bos taurus isoelectric focusing
-
4.8