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3.2.2.8: ribosylpyrimidine nucleosidase

This is an abbreviated version!
For detailed information about ribosylpyrimidine nucleosidase, go to the full flat file.

Word Map on EC 3.2.2.8

Reaction

a pyrimidine nucleoside
+
H2O
=
D-ribose
+
a pyrimidine base

Synonyms

CU-NH, cytidine-uridine nucleoside hydrolase, cytidine-uridine-preferring nucleoside hydrolase, LBRM_18_1610, More, N-ribohydrolase, N-ribosylpyrimidine nucleosidase, N-ribosylpyrimidine ribohydrolase, NH, NSH1, nucleosidase, pyrimidine, nucleoside hydrolase, pyrimidine nucleosidase, pyrimidine nucleoside hydrolase, pyrimidine-specific nucleoside hydrolase, ribonucleoside hydrolase 1, rih1, RihA, RihB, SsCU-NH, SSO0505, URH1, uridine-ribohydrolase 1, YbeK, YeiK

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.2 Hydrolysing N-glycosyl compounds
                3.2.2.8 ribosylpyrimidine nucleosidase

KM Value

KM Value on EC 3.2.2.8 - ribosylpyrimidine nucleosidase

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
7.5
1-beta-D-ribofuranosylthymine
-
-
0.25
4-nitrophenyl beta-D-ribofuranoside
pH 7.5, 25°C
0.18
4-nitrophenyl ribopyranoside
pH 7.0, 35°C, recombinant enzyme
0.186 - 2.5
5-Bromouridine
0.128
5-fluorouridine
-
pH 7.3, 37°C
0.22
5-iodouridine
-
pH 7.3, 37°C
0.329
5-methyluridine
-
pH 7.3, 37°C
0.33
6-mercaptopurine ribonucleoside
-
-
0.5 - 0.7
adenosine
0.524 - 1
cytidine
0.363 - 0.6
guanosine
0.2 - 5.3
Inosine
0.4
isopentenyladenine-riboside
recombinant enzyme expressed in Escherichia coli, in 50 mM Tris-HCl, pH 7.5, at 30°C
0.44
methyluridine
-
isoform NSH1, pH not specified in the publication, at 30°C
0.78
purine ribonucleoside
-
-
0.083 - 5.5
uridine
1.11 - 6.5
Xanthosine
additional information
additional information
-