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Literature summary extracted from

  • Negishi, O.; Ozawa, T.; Imagawa, H.
    Guanosine deaminase and guanine deaminase from tea leaves (1994), Biosci. Biotechnol. Biochem., 58, 1277-1281.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.5.4.3 EDTA 1 mM, relative activity 104% Camellia sinensis
3.5.4.3 ICH2COOH 1mM, relative activity 103% Camellia sinensis
3.5.4.3 NaF 1 mM, relative activity 102% Camellia sinensis

Application

EC Number Application Comment Organism
3.5.4.15 medicine caffeine biosynthesis and purine metabolism Camellia sinensis

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.5.4.3 Cd(CH3COO)2 relative activity 7.4% Camellia sinensis
3.5.4.3 CuSO4 relative activity 25.8% Camellia sinensis
3.5.4.3 PCMB relative activity 34.7% Camellia sinensis
3.5.4.3 Zn2+ 1 mM ZnSO4, complete inhibition Camellia sinensis
3.5.4.3 Zn2+
-
Rattus norvegicus
3.5.4.15 Cd2+
-
Camellia sinensis
3.5.4.15 Cu2+
-
Camellia sinensis
3.5.4.15 p-chloromercuribenzoate
-
Camellia sinensis
3.5.4.15 Pb2+
-
Camellia sinensis
3.5.4.15 Zn2+
-
Camellia sinensis

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.5.4.3 0.0417
-
guanine
-
Camellia sinensis
3.5.4.15 0.0098
-
guanosine
-
Camellia sinensis

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.5.4.3 Al3+ 1 mM AlCl3, relative activity 102% Camellia sinensis
3.5.4.3 Ca2+
-
Rattus norvegicus
3.5.4.3 Ca2+ 1 mM CaCl2, relative activity 101% Camellia sinensis
3.5.4.3 Mg2+
-
Rattus norvegicus
3.5.4.3 Mg2+ 1 mM MgCl2, relative activity 102% Camellia sinensis

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.5.4.3 54000
-
gel filtration Camellia sinensis
3.5.4.15 18000
-
gel filtration Camellia sinensis

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.5.4.3 guanine + H2O Rattus norvegicus
-
xanthine + NH3
-
?
3.5.4.3 guanine + H2O Nicotiana tabacum
-
xanthine + NH3
-
?
3.5.4.3 guanine + H2O Camellia sinensis
-
xanthine + NH3
-
?
3.5.4.3 guanine + H2O Clostridium sp.
-
xanthine + NH3
-
?
3.5.4.15 adenine + H2O Camellia sinensis
-
allopurinol + NH3
-
?
3.5.4.15 adenosine + H2O Camellia sinensis
-
inosine + NH3
-
?
3.5.4.15 cytidine + H2O Camellia sinensis
-
uridine + NH3
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.5.4.3 Camellia sinensis
-
tea, L. O.Kuntze cv. Yabukita
-
3.5.4.3 Clostridium sp.
-
C. acidiurici
-
3.5.4.3 Nicotiana tabacum
-
-
-
3.5.4.3 Rattus norvegicus
-
rat
-
3.5.4.15 Camellia sinensis
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.5.4.3
-
Rattus norvegicus
3.5.4.3
-
Camellia sinensis
3.5.4.3
-
Clostridium sp.
3.5.4.15
-
Camellia sinensis

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.5.4.3 brain
-
Rattus norvegicus
-
3.5.4.3 leaf
-
Nicotiana tabacum
-
3.5.4.3 leaf
-
Camellia sinensis
-
3.5.4.3 liver
-
Rattus norvegicus
-
3.5.4.15 leaf
-
Camellia sinensis
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.5.4.3 48.8
-
-
Camellia sinensis
3.5.4.15 143
-
-
Camellia sinensis

Storage Stability

EC Number Storage Stability Organism
3.5.4.3 -20°C stable for 2 weeks with only a few percent loss Camellia sinensis
3.5.4.3 4°C stable for 2 weeks with only a few percent loss Camellia sinensis
3.5.4.15 -20°C, 7 days Camellia sinensis

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.5.4.3 adenine + H2O
-
Camellia sinensis allopurinol + NH3
-
?
3.5.4.3 cytidine + H2O
-
Camellia sinensis uridine + NH3
-
?
3.5.4.3 cytosine + H2O
-
Camellia sinensis 6-hydroxy-1H-pyrimidin-2-one + NH3
-
?
3.5.4.3 guanine + H2O
-
Rattus norvegicus xanthine + NH3
-
?
3.5.4.3 guanine + H2O
-
Nicotiana tabacum xanthine + NH3
-
?
3.5.4.3 guanine + H2O
-
Camellia sinensis xanthine + NH3
-
?
3.5.4.3 guanine + H2O
-
Clostridium sp. xanthine + NH3
-
?
3.5.4.15 2'-deoxyguanosine + H2O
-
Camellia sinensis 2'-deoxyxanthosine + NH3
-
?
3.5.4.15 adenine + H2O
-
Camellia sinensis allopurinol + NH3
-
?
3.5.4.15 adenosine + H2O
-
Camellia sinensis inosine + NH3
-
?
3.5.4.15 cytidine + H2O
-
Camellia sinensis uridine + NH3
-
?
3.5.4.15 guanosine + H2O
-
Camellia sinensis xanthosine + NH3
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.5.4.3 40
-
-
Camellia sinensis
3.5.4.15 40
-
rapidly decreased above 50°C Camellia sinensis

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.5.4.3 50
-
-
Rattus norvegicus
3.5.4.3 50
-
activity rapidly decreases above Camellia sinensis

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.5.4.3 7 7.5 double peaks of optimum activity, second optimum at pH 8.5 Rattus norvegicus
3.5.4.3 7 7.5 double peaks of optimum activity, second optimum at pH 8.5 Camellia sinensis
3.5.4.3 8.5
-
double peaks of optimum activity, second optimum between pH 7 and pH 7.5 Rattus norvegicus
3.5.4.3 8.5
-
double peaks of optimum activity, second optimum between pH 7 and pH 7.5 Camellia sinensis

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.5.4.3 4 9
-
Camellia sinensis