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Literature summary for 2.4.2.1 extracted from

  • Bzowska, A.; Kulikowska, E.; Darzynkiewicz, E.; Shugar, D.
    Purine nucleoside phosphorylase. Structure-activity relationships for substrate and inhibitor properties of N-1-, N-7-, and C-8-substituted analogues; differentiation of mammalian and bacterial enzymes with N-1-methylinosine and guanosine (1988), J. Biol. Chem., 263, 9212-9217.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1-methylguanine
-
Bos taurus
1-methylguanine
-
Escherichia coli

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.013
-
7-ethylguanosine
-
Bos taurus
0.0147
-
7-methylguanosine
-
Bos taurus
0.02
-
guanosine
-
Escherichia coli
0.022
-
1-Methylguanosine
-
Escherichia coli
0.025
-
7-prolylguanosine
-
Bos taurus
0.032
-
Inosine
-
Escherichia coli
0.034
-
7-butylguanosine
-
Bos taurus
0.05
-
1-methylinosine
-
Escherichia coli
0.065
-
7,8-dimethylguanosine
-
Bos taurus
0.069
-
7-isopropylguanine
-
Bos taurus
0.09
-
isobutylguanosine
-
Bos taurus
0.1
-
8-methylguanosine
-
Bos taurus
0.6
-
7-methylguanosine
-
Bos taurus

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-
Escherichia coli
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1-methylguanosine + phosphate
-
Escherichia coli alpha-D-ribose 1-phosphate + 1-methylguanine
-
?
1-methylinosine + phosphate
-
Escherichia coli alpha-D-ribose 1-phosphate + 1-methylhypoxanthine
-
?
7,8-dimethylguanosine + phosphate
-
Bos taurus 7,8-dimethylguanine + alpha-D-ribose 1-phosphate
-
?
7-butylguanosine + phosphate
-
Bos taurus 7-butylguanine + alpha-D-ribose 1-phosphate
-
?
7-ethylguanosine + phosphate
-
Bos taurus 7-ethylguanine + alpha-D-ribose 1-phosphate
-
?
7-isobutylguanosine + phosphate
-
Bos taurus 7-isobutylguanine + alpha-D-ribose 1-phosphate
-
?
7-isopropylguanosine + phosphate
-
Bos taurus 7-isopropylguanine + alpha-D-ribose 1-phosphate
-
?
7-methyl-8-aminoguanosine + phosphate
-
Bos taurus 7-methyl-8-aminoguanine + alpha-D-ribose 1-phosphate
-
?
7-methylguanosine + phosphate
-
Escherichia coli 7-methylguanine + alpha-D-ribose 1-phosphate
-
?
7-methylguanosine + phosphate
-
Bos taurus 7-methylguanine + alpha-D-ribose 1-phosphate
-
?
7-methylinosine + phosphate
-
Escherichia coli 7-methylhypoxanthine + alpha-D-ribose 1-phosphate
-
?
7-methylinosine + phosphate
-
Bos taurus 7-methylhypoxanthine + alpha-D-ribose 1-phosphate
-
?
7-prolylguanosine + phosphate
-
Bos taurus 7-prolylguanine + alpha-D-ribose 1-phosphate
-
?
8-methylguanosine + phosphate
-
Bos taurus 8-methylguanine + alpha-D-ribose 1-phosphate
-
?
inosine + phosphate
-
Escherichia coli hypoxanthine + alpha-D-ribose 1-phosphate
-
?
inosine + phosphate
-
Bos taurus hypoxanthine + alpha-D-ribose 1-phosphate
-
?

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
additional information
-
additional information
-
Escherichia coli
additional information
-
additional information
-
Bos taurus
0.02
-
1-methylguanine
-
Escherichia coli