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Literature summary for 3.2.2.2 extracted from

  • Porcelli, M.; Peluso, I.; Marabotti, A.; Facchiano, A.; Cacciapuoti, G.
    Biochemical characterization and homology modeling of a purine-specific ribonucleoside hydrolase from the archaeon Sulfolobus solfataricus: insights into mechanisms of protein stabilization (2009), Arch. Biochem. Biophys., 483, 55-65.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
-
Saccharolobus solfataricus

Inhibitors

Inhibitors Comment Organism Structure
EDTA
-
Saccharolobus solfataricus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.06
-
adenosine
-
Saccharolobus solfataricus
0.16
-
guanosine
-
Saccharolobus solfataricus
0.34
-
Inosine
-
Saccharolobus solfataricus

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+
-
Saccharolobus solfataricus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
34000
-
2 * 34000 Da, SDS-PAGE, predicted: 34325 Da/subunit, intersubunit disulfide bond Saccharolobus solfataricus
70000
-
gel filtration Saccharolobus solfataricus

Organism

Organism UniProt Comment Textmining
Saccharolobus solfataricus
-
-
-
Saccharolobus solfataricus P2
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Saccharolobus solfataricus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
adenosine + H2O
-
Saccharolobus solfataricus adenine + D-ribose
-
?
adenosine + H2O
-
Saccharolobus solfataricus P2 adenine + D-ribose
-
?
guanosine + H2O
-
Saccharolobus solfataricus guanine + D-ribose
-
?
guanosine + H2O
-
Saccharolobus solfataricus P2 guanine + D-ribose
-
?
inosine + H2O
-
Saccharolobus solfataricus hypoxanthine + D-ribose
-
?
inosine + H2O
-
Saccharolobus solfataricus P2 hypoxanthine + D-ribose
-
?

Subunits

Subunits Comment Organism
homodimer 2 * 34000 Da, SDS-PAGE, predicted: 34325 Da/subunit, intersubunit disulfide bond Saccharolobus solfataricus

Synonyms

Synonyms Comment Organism
inosine-adenosine-guanosine nucleoside hydrolase purine-specific Saccharolobus solfataricus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
105
-
-
Saccharolobus solfataricus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
105 115 105°C: maximal activity, 115°C: 50% of maximal activity Saccharolobus solfataricus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
90
-
100% activity after 1h, apparent melting temperature: 107°C Saccharolobus solfataricus
100
-
half-live 45 min Saccharolobus solfataricus
105
-
half-live 30 min Saccharolobus solfataricus
110
-
half-live 15 min Saccharolobus solfataricus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.8
-
adenosine
-
Saccharolobus solfataricus
23.3
-
Inosine
-
Saccharolobus solfataricus
29.1
-
guanosine
-
Saccharolobus solfataricus

pI Value

Organism Comment pI Value Maximum pI Value
Saccharolobus solfataricus estimated
-
5.92