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Literature summary for 3.1.26.3 extracted from

  • Dunn, J.J
    Ribonuclease III (1982), The Enzymes, 3rd Ed. (Boyer, P. D. , ed. ), 15, 485-499.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
NH4+
-
Mus musculus
NH4+ maximum activity at 0.15-0.3 M Escherichia coli

Inhibitors

Inhibitors Comment Organism Structure
Co2+
-
Escherichia coli
Cu2+
-
Escherichia coli
Ethidium bromide at 1.5 M Escherichia coli
Ethidium bromide
-
Homo sapiens
Ethidium bromide
-
Mus musculus
Fe3+
-
Escherichia coli
Hg2+
-
Escherichia coli

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ inhibits Escherichia coli
K+
-
Mus musculus
K+ stimulates, maximum activity at 0.15-0.3 M Escherichia coli
Mg2+ required Mus musculus
Mg2+ required Escherichia coli
Mg2+ required Homo sapiens
Mn2+ required Escherichia coli
Na+ stimulates, maximum activity at 0.15-0.3 M Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
40000 55000 sucrose density gradient centrifugation, gel filtration Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
double-stranded RNA + H2O Mus musculus cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O Escherichia coli cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O Homo sapiens cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O Bos taurus cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA 5'-phosphooligonucleotides
-
?

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-
Escherichia coli
-
-
-
Homo sapiens
-
-
-
Mus musculus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Escherichia coli

Source Tissue

Source Tissue Comment Organism Textmining
HeLa cell
-
Homo sapiens
-
Krebs II ascites cell
-
Mus musculus
-
thymus
-
Bos taurus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
double-stranded RNA + H2O
-
Mus musculus 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O
-
Escherichia coli 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O
-
Homo sapiens 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O
-
Bos taurus 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA Mus musculus 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA Escherichia coli 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA Homo sapiens 5'-phosphooligonucleotides
-
?
double-stranded RNA + H2O cleaves multimeric tRNA precursor at the spacer region, also involved in processing of precursor rRNA, hnRNA and early T7-mRNA. Also cleaves double-stranded DNA and single-stranded RNA Bos taurus 5'-phosphooligonucleotides
-
?
single-stranded RNA + H2O
-
Escherichia coli 5'-phosphooligonucleotides
-
?
single-stranded RNA + H2O
-
Homo sapiens 5'-phosphooligonucleotides
-
?
single-stranded RNA + H2O
-
Bos taurus 5'-phosphooligonucleotides
-
?

Subunits

Subunits Comment Organism
dimer
-
Mus musculus
dimer
-
Escherichia coli