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Literature summary for 5.6.2.1 extracted from

  • Gao, R.; Zhang, Y.; Dedkova, L.; Choudhury, A.K.; Rahier, N.J.; Hecht, S.M.
    Effects of modification of the active site tyrosine of human DNA topoisomerase I (2006), Biochemistry, 45, 8402-8410.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
Escherichia coli competent cells BL21(DE3)pLysS, JM109 Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information Topoisomerase I is modified at the active site by incorporation of a number of tyrosine analogues employed 13 structural analogous of tyrosine. SDS-PAGE, in vitro synthesis of human topoisomerase I analogues modified at position 723. Human topoisomerase I-mediated DNA relaxation assay Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
20-thio camptothecin analogue of camptothecin, inhibit a modified human topoisomerase I Homo sapiens
camptothecin anticancer agent camptothecin (CPT) Homo sapiens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
97000
-
-
Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Reaction

Reaction Comment Organism Reaction ID
ATP-independent breakage of single-stranded DNA, followed by passage and rejoining Human topoisomerase I-mediated DNA relaxation reaction studied following modification of the enzyme at the active site tyrosine (position 723) Homo sapiens

Synonyms

Synonyms Comment Organism
DNA topoisomerase I
-
Homo sapiens