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An Information Portal to 110071 Biological Macromolecular Structures

TOPOISOMERASE I/DNA COMPLEX
Biology and Chemistry Report
1A36
  •   Structure Details   Hide

    Structure Keywords

    Keywords ISOMERASE/DNA
    Text COMPLEX (ISOMERASE-DNA), DNA, TOPOISOMERASE I, ISOMERASE-DNA complex

    Polymeric Molecules

    Chain B
    Description DNA (5'-D(*AP*AP*AP*AP*AP*GP*AP*CP*TP*TP*AP*GP*AP*AP*AP*AP*A P*TP*TP*TP*TP*T)- 3') 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 6790.5 
    Source Method synthetic  
    Chain C
    Description DNA (5'-D(*AP*AP*AP*AP*AP*TP*TP*TP*TP*TP*CP*TP*AP*AP*GP*TP*C P*TP*TP*TP*TP*T)- 3') 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 6705.4 
    Source Method synthetic  
    Chain A
    Description TOPOISOMERASE I 
    Fragment CORE DOMAIN AND C-TERMINAL DOMAIN 
    Mutation Y723F 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 70023.5 
    Source Method genetically manipulated  

     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A TOP1_HUMAN P11387     

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc Catalytic Site(s)
    5.99.1.2        
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    6265   DNA Topological Change  The Process in Which a Transformation Is Induced in the Topological Structure of a Double Stranded DNA Helix Resulting in a Change in Linking Number. 
    5694   Chromosome  A Structure Composed of a Very Long Molecule of DNA and Associated Proteins (e.g. Histones) That Carries Hereditary Information. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    3917   DNA Topoisomerase Type I Activity  Catalysis of a DNA Topological Transformation by Transiently Cleaving One DNA Strand At a Time to Allow Passage of Another Strand; Changes the Linking Number by +1 Per Catalytic Cycle. 
    3918   DNA topoisomerase type II (ATP-hydrolyzing) activity  Catalysis of a DNA Topological Transformation by Transiently Cleaving a Pair of Complementary DNA Strands to Form a Gate Through Which a Second Double Stranded DNA Segment Is Passed After Which the Severed Strands in the First DNA Segment Are Rejoined; Product Release Is Coupled to ATP Binding and Hydrolysis; Changes the Linking Number in Multiples of 2. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A
    Common Name Human
    Scientific Name Homo sapiens  
    Genus Homo
    Subcellular Location Nucleus
    Host Common Name Fall Armyworm
    Host Scientific Name Spodoptera frugiperda  
    Host Genus Spodoptera
    Host Vector Baculovirus


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    20 20q12-q13.1 7150     topoisomerase (DNA) I TOP1    

    Single Nucleotide Polymorphisms (from LS-SNP database)

    SNP ID LsSnp Link dbSNP Link Chain PDB position Amino acid changes Secondary structure Solvent Accessibility Chromosome Chromosome position Ligand
    rs141048730 LS-SNP   dbSNP   A 292 N - > D Helix 84% (Exposed) 20 39726876
    rs144769453 LS-SNP   dbSNP   A 296 N - > S Coil 27% (Intermediate) 20 39726889
    rs112116865 LS-SNP   dbSNP   A 379 P - > R 3/10 Helix 2% (Buried) 20 39728856
    rs121434562 LS-SNP   dbSNP   A 418 E - > K Coil 7% (Buried) 20 39729937
    rs61751055 LS-SNP   dbSNP   A 515 H - > R Beta Ladder 22% (Intermediate) 20 39742701
    rs6129757 LS-SNP   dbSNP   A 517 E - > K Beta Ladder 66% (Exposed) 20 39742706
    rs60545547 LS-SNP   dbSNP   A 536 R - > K Beta Ladder 61% (Exposed) 20 39742764
    rs140382971 LS-SNP   dbSNP   A 674 V - > I Helix 64% (Exposed) 20 39750405
    rs193297810 LS-SNP   dbSNP   A 704 Q - > K Helix 41% (Exposed) 20 39750710
    rs56111014 LS-SNP   dbSNP   A 749 R - > Q Helix 41% (Exposed) 20 39751885