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Literature summary for 5.6.2.2 extracted from

  • Shelton, E.R.; Osheroff, N.; Brutlag, D.L.
    DNA topoisomerase II from Drosophila melanogaster. Purification and physical characterization (1983), J. Biol. Chem., 258, 9530-9535.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
nucleus
-
Drosophila melanogaster 5634
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
166000
-
2 * 166000, SDS-PAGE Drosophila melanogaster
261000
-
gel filtration, glycerol density gradient centrifugation Drosophila melanogaster

Organism

Organism UniProt Comment Textmining
Drosophila melanogaster
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Drosophila melanogaster

Source Tissue

Source Tissue Comment Organism Textmining
embryo
-
Drosophila melanogaster
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Drosophila melanogaster

Storage Stability

Storage Stability Organism
4°C, stable for at least one year Drosophila melanogaster

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information the following reactions are catalyzed in an ATP-dependent fashion: relaxation of superhelical turns, catenation, decatenation, unknotting of circular duplex DNA Drosophila melanogaster ?
-
?
network of DNA rings + ATP + H2O decatenation Drosophila melanogaster monomeric DNA circles + ADP + phosphate
-
?
supercoiled DNA + ATP + H2O catenation Drosophila melanogaster catenated DNA networks + ADP + phosphate
-
?
supercoiled DNA + ATP + H2O catenation in presence of the condensing agent histone H1 Drosophila melanogaster catenated DNA networks + ADP + phosphate
-
?
supercoiled DNA + ATP + H2O relaxation Drosophila melanogaster relaxed DNA + ADP + phosphate
-
?

Subunits

Subunits Comment Organism
dimer 2 * 166000, SDS-PAGE Drosophila melanogaster