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Literature summary for 3.1.13.3 extracted from

  • Niyogi, S.K.; Datta, A.K.
    A novel oligoribonuclease of Escherichia coli. I. Isolation and properties (1975), J. Biol. Chem., 250, 7307-7312.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm supernatant fraction Escherichia coli 5737
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ no stimulation Escherichia coli
K+ no effect Escherichia coli
Mg2+ activation Escherichia coli
Mn2+ strong stimulation Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
38000
-
gel filtration Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
oligonucleotides + H2O Escherichia coli
-
nucleoside 5'-phosphates
-
?

Organism

Organism UniProt Comment Textmining
Escherichia coli
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Escherichia coli

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
10.75
-
-
Escherichia coli

Storage Stability

Storage Stability Organism
-25°C, 50% glycerol Escherichia coli

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
DNA + H2O no activity Escherichia coli nucleoside 5'-phosphates
-
?
NAD+ + H2O
-
Escherichia coli NMN + AMP
-
?
oligonucleotides + H2O
-
Escherichia coli nucleoside 5'-phosphates
-
?
oligonucleotides + H2O exonuclease: 3`to 5'-direction Escherichia coli nucleoside 5'-phosphates
-
?
oligonucleotides + H2O reaction rate inversely proportional to chain length of substrate Escherichia coli nucleoside 5'-phosphates
-
?
oligonucleotides + H2O specific for short ribooligonucleotides Escherichia coli nucleoside 5'-phosphates
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Escherichia coli

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
65
-
half-life: 10 min Escherichia coli
70
-
half-life: 10 min Escherichia coli
100
-
half-life: 2.5 min Escherichia coli

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8 9
-
Escherichia coli

pH Range

pH Minimum pH Maximum Comment Organism
7 9.5 pH 7.0: 50% of maximum activity, pH 9.5: 70% of maximum activity Escherichia coli