SGID Silkworm Genome Informatics Database
Gene
KWMTBOMO06463  Validated by peptides from experiments
Pre Gene Modal
BGIBMGA011615
Annotation
DNA_topoisomerase_2_[Bombyx_mori]
Full name
DNA topoisomerase 2      
Alternative Name
DNA topoisomerase II
Location in the cell
Nuclear   Reliability : 4.241
 

Sequence

CDS
ATGGCTGATATAAAGTCAATGTTTAATAAAATGAGCAGCCCAAAGCAGAATGGCACTGGGGAGCCTGCACCCGCTAAAGGTCAGAAGGGTGCCATTGAAAAGATATACCAGAAGAAATCACAGCTAGAGCACATCCTCCTACGTCCTGACACCTATATTGGTTCAGTGGAAAGAGCCACCGAGACTATGTGGGTTTATGACAAGGTGAAGGAGTGTATGATGCAAAAAGAGTTGACTTTTGTGCCAGGTTTGTACAAAATTTATGACGAAATCTTGGTTAATGCGGCTGACAATAAGCAGAGAGACCCCAAAATGGATGTCATTAAAATTGACATAAATCAAGAAACAAACACAATATCCGTCTACAATAATGGTTGTGGTATCCCTGTAGTTATGCATAAAGATGAGAAGATGTATGTGCCGACTATGATCTTTGGGCATTTGTTGACTTCGTCCAATTATAATGATGAAGAGGAAAAAGTCACAGGTGGTAGGAATGGTTATGGTGCAAAACTCTGTAATATTTTCTCAACTAAATTCACAGTGGAAACTGCTTCAAAGCAGTACAAGAAACACTTTAAACAGACATGGGGTTCCAATATGACTAAGGCTTCTGAACCTAAGATTAAAGATTCTGGGAAAGACGATGACTTTACTAAAATAGTGTTTAGTCCAGATTTGGCTAAATTTAAAATGGAAAAATTAGAAGACGACATTGTGTTACTAATGTCAAGACGAGCATATGACGTAGCAGCCTCATCGCAAGGTGTAAAGGTTTATTTAAATGGTGAAAGACTAAAAATTAATAAATTTAAGGACTATGTAGATTTATACATTAAAGGAAAAGACGATGAAAATGGCCAACCATTGAAAGTTGTTTATGAGAAAGTGAGTGACCGCTGGGAGGTCGCTCTTACAATATCTGACATGGGATTCCAACAAGTTTCTTTTGTTAACTCTATTGCAACCACAAAAGGTGGTAAACATGTTGATACAGTAGCTGACAGTGTGGTCAAGAATGTTTTAGAAGTACTTAAAAAGAAGAATAAAGGTGGTGTTAATATTAAACCATACCAAGTTAAAACTCACATGTGGTTATTTGTCAACTGCCTGATTGTAAACCCTACCTTTGATTCACAAACTAAAGAGAACATGACACTCCAAGCTAAAAGCTTTGGGTCAAAATGTAATTTGTCTGAAAAGTTCATCACAGCAGTTACCAAATGTGGTTTGGTGGAATCTGTTCTGACTTGGGCGAAATTTAAGGCTCAAGATCAATTAGTTAAGGCATCTGGAAAGAAACAGAGTAAATTGAAGGGCATACCGAAATTGGAAGATGCTAATGATGCAGGCACAAAGAATGCACATCTCTGTACATTGATTTTGACTGAGGGAGACTCGGCTAAAACATTGGCTGTATCAGGACTCAGTGTTGTAGGTAGAGATCATTACGGAGTGTTTCCATTAAAGGGTAAACCTTTAAATGTGCGAGATGCGTCCCACAAGCAAGTTCTAGAAAATGTTGAAATCAATAATTTGATTAAAATTCTTGGATTACAGTACAAGAAAAAATATAACTCAGTTGATGATTTGAAAACATTACGTTATGGTAAAGTAATGATCATGGCTGATCAGGATCAAGATGGATCGCATATTAAAGGTCTGATTATCAATTTTATACATCATAATTGGCCTGAGCTATTGAAATTGCCATTTTTAGAAGAATTCATTACACCTATTGTCAAAGCTACAAAAAAAGACAAAGAAATATCTTTCTACTCTTTACCAGAGTTTGAAGAATGGAAAAAAGAAACAGAAAACCATCACACATATAATATAAAATACTACAAAGGTTTGGGTACCTCCACATCAAAGGAGGCTAAAGAATATTTCCAAAATATGGATAGGCACCGAATTCGATTCAAGTATAGTGGTCCAACTGATGATCACCATATTGAACTTGCATTTTCAAAGAAAGGTGCAGATCAACGTAAGGAATGGTTGACTAATCACATGGATGAAGTTAAGAGGAGAAAGGAAATAGGACTGTCAGAGAGATACCTGTACACAAAAGAGACGAAAACAGTGACTTATTCTGATTTCGTTAATTTGGAACTTGTACTATTCTCAAATGGTGACAATGTGAGATCAATTCCATCAATGATAGATGGCTTGAAGCCGGGTCAACGTAAAGTTATCTTCACTTGTATAAAACGTAATGACAAGCGTGAAGTGAAAGTGGCACAACTGGCTGGTTCCGTTGCAGAGCATTCGGCTTACCATCACGGTGAACAGTCCCTGGCAATGACCATAGTGAACCTGGCTCAGAACTACGTCGGTTCGAACAACATCAATCTGCTGGAGCCGCGCGGACAGTTCGGCACGCGGCTCAGCGGCGGCAAGGACTCGGCCAGCCCCCGATACATCTTCACTCTCATGTCCCCGCTCACAAGACTCATATTCCATCCGCACGACGACCCGCTGCTTGTCCATGAATTTGAGGACAACCAGAAGATAGAACCAGTTTACTATCTGCCCATTATCCCAATGGTGTTGGTGAACGGAGCTGAAGGTATTGGTACAGGCTGGTCCACTAAAATACCTAATTACAACCCCAGGGATATTGCTGAAAACTTACGGAGGTTGCTGGACGGCGAAGAGCCTAAAGTGATGCATCCGTGGTATAAGAACTTCAAGGGCAATGTGGAGGGCTTCGGCGATAAATACGTCATATCCGGTGAGGCGGCCATATTGCCTGGCGACAAAATCGAGATCACGGAGCTTCCGGTCGGGACGTGGACCCAGAATTACAAGGAAAATGTCCTCGAACCTATGCTTGGAACAGATAAAGTGAAACCATTAATATCTGAATACAGGGAATACAATACTGACACGACAGTTCGGTTTGTCGTGTCACTTTTACCTGGAAAGCTATCTGAAATAGAGGCTGAGGGCATACACAAGGTGTTCAAACTGCAAACTACCATATCTATGACATGTATGAACGCCTTCGACTATAACTGCTGCCTTAAAAAATACGACAAAGTAGAGGAAATCCTACGTGAGTTTTACGACCTGCGCGTTAAATACTACGTCCGTCGCAAGGATTACCTCGAGGGACAGTTGCAGGCCGAAGCAGACAAGCTGTCCAATCAGGCTCGGTTTATCCTAGAAAAGTGTGACAAAGGATTAGTCATCGAGAACAAGAAAAGAAAGGCTATGGTTGAAGAACTCATCAAGAGAGGCTACGCTCCCGACCCAATCGCGGACTGGAAGAAGCGAGCCAGCAAGATCCAAGGTCTCACCGCGTTAGAGGACGACGACGCTCAGGAATCTGAAGATGAGGAACCGGAACCTGATCCTAAAGGGAAACCCGTTGACCCTGATAAAGCATTCCAGCAATTGAAAGAAGTAAAGAAATTTAACTATCTGCTGGGAATGTCGATGTGGATGCTCACTAAAGAGAAGAAAGATGAACTCCTCAAGCAGAGAGACCAGAAATTGACTGAGCTGACCACATTGAAAAATAAAACGGCACCAATGCTGTGGCGGGAAGATCTAGACGCGTTTTTGATCAAATTAGACGAAGTTGAAGATAAGGAGCGACAGGAGGAACTCAATGTCAACAAGAAGACTTCTAAAGCGATGGCTGGTAAGAAGAATCGCAAGTCAATGTTTGATATTATCCCGTCCGAGAATGGTAGAAGAGTTGAGCCGAAGATATCTGATGACCTGATCAAGAGGATACAGGCCGCAGAGAAAGCTAAAACCAGGAAAGAGATTAAGAAGGAATATGATCCAGATGACCCTACAGGCATAAGCCCATCAAGCGGAGAGAAAAAACCTAAAGCTCGAGTAAAGAAAGAGAAGCCAGAGAAAGCTGAGAAACCTGATAAAGTTGACAAAGCTGAAAAAACAGATGGGCTTAAACAAACTAAACTTACTTTTAAAAAGGAACCTAAAAAGAAGAAGATGACGTTCAGCGGCAGCAGTTCAGGAGAAATGTCAGCATCTGATGCTGAGGTGGAAGTTCTAGTACCTCGGGAACGTACCAATGCGAGGAGAGCTGCCACTAAGGTACAGAAATACAAAGACGGTTCAGATGACTCTGGTTCTGATTCAGAACCAGAACTGTTGGATAACAAGATAGATTCGGACCATGAAGCGCCACAAACTCTCTCCATCAGTGATGAGGATGATGATTTCAACATCAAGAAGAATCCCGCAAAGAAACCAGCCGAGATGGATTCTGATTGCTTATTCGACTCTCTGATAGAAGATGCTAAAAAAGATGAACCACAAAAGACATTGACAAAATCTAAATCAGAGAGCAATCCTCATCCGACGAACTTAATATCGAGCGACAGCGACGCTGCGATACAAGCGTCACCGCCGAAGAAAAAAGCAGCTCCCAAACGTAAACTGATGAATGTCGATAAAGATGAGAAGAAGACCAAGAAGAGGCCGGCGCGGGTCATGCTCGACCAGGACTCCGACGACGAGGACAGCATATTTGACAGTAAAAAGGGTAAAAAGAAACTTGCTGCGAATCCCAAAAAGAAGGCTAAGAAGAAGGTGGAAAGTGATTCTGAATCTGACTTCAATATAAGCGACAGCTCATTGAGCGATTAG
Protein
MADIKSMFNKMSSPKQNGTGEPAPAKGQKGAIEKIYQKKSQLEHILLRPDTYIGSVERATETMWVYDKVKECMMQKELTFVPGLYKIYDEILVNAADNKQRDPKMDVIKIDINQETNTISVYNNGCGIPVVMHKDEKMYVPTMIFGHLLTSSNYNDEEEKVTGGRNGYGAKLCNIFSTKFTVETASKQYKKHFKQTWGSNMTKASEPKIKDSGKDDDFTKIVFSPDLAKFKMEKLEDDIVLLMSRRAYDVAASSQGVKVYLNGERLKINKFKDYVDLYIKGKDDENGQPLKVVYEKVSDRWEVALTISDMGFQQVSFVNSIATTKGGKHVDTVADSVVKNVLEVLKKKNKGGVNIKPYQVKTHMWLFVNCLIVNPTFDSQTKENMTLQAKSFGSKCNLSEKFITAVTKCGLVESVLTWAKFKAQDQLVKASGKKQSKLKGIPKLEDANDAGTKNAHLCTLILTEGDSAKTLAVSGLSVVGRDHYGVFPLKGKPLNVRDASHKQVLENVEINNLIKILGLQYKKKYNSVDDLKTLRYGKVMIMADQDQDGSHIKGLIINFIHHNWPELLKLPFLEEFITPIVKATKKDKEISFYSLPEFEEWKKETENHHTYNIKYYKGLGTSTSKEAKEYFQNMDRHRIRFKYSGPTDDHHIELAFSKKGADQRKEWLTNHMDEVKRRKEIGLSERYLYTKETKTVTYSDFVNLELVLFSNGDNVRSIPSMIDGLKPGQRKVIFTCIKRNDKREVKVAQLAGSVAEHSAYHHGEQSLAMTIVNLAQNYVGSNNINLLEPRGQFGTRLSGGKDSASPRYIFTLMSPLTRLIFHPHDDPLLVHEFEDNQKIEPVYYLPIIPMVLVNGAEGIGTGWSTKIPNYNPRDIAENLRRLLDGEEPKVMHPWYKNFKGNVEGFGDKYVISGEAAILPGDKIEITELPVGTWTQNYKENVLEPMLGTDKVKPLISEYREYNTDTTVRFVVSLLPGKLSEIEAEGIHKVFKLQTTISMTCMNAFDYNCCLKKYDKVEEILREFYDLRVKYYVRRKDYLEGQLQAEADKLSNQARFILEKCDKGLVIENKKRKAMVEELIKRGYAPDPIADWKKRASKIQGLTALEDDDAQESEDEEPEPDPKGKPVDPDKAFQQLKEVKKFNYLLGMSMWMLTKEKKDELLKQRDQKLTELTTLKNKTAPMLWREDLDAFLIKLDEVEDKERQEELNVNKKTSKAMAGKKNRKSMFDIIPSENGRRVEPKISDDLIKRIQAAEKAKTRKEIKKEYDPDDPTGISPSSGEKKPKARVKKEKPEKAEKPDKVDKAEKTDGLKQTKLTFKKEPKKKKMTFSGSSSGEMSASDAEVEVLVPRERTNARRAATKVQKYKDGSDDSGSDSEPELLDNKIDSDHEAPQTLSISDEDDDFNIKKNPAKKPAEMDSDCLFDSLIEDAKKDEPQKTLTKSKSESNPHPTNLISSDSDAAIQASPPKKKAAPKRKLMNVDKDEKKTKKRPARVMLDQDSDDEDSIFDSKKGKKKLAANPKKKAKKKVESDSESDFNISDSSLSD

Summary

Description
Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks.
Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands (PubMed:6308011, PubMed:2547764, PubMed:1328202, PubMed:8383533, PubMed:10786800, PubMed:8978614). Topoisomerase II makes double-strand breaks (PubMed:6308011, PubMed:2547764, PubMed:1328202, PubMed:8383533, PubMed:10786800, PubMed:9545289). Essential during mitosis and meiosis for proper segregation of daughter chromosomes (PubMed:10751154, PubMed:14600258, PubMed:18752348, PubMed:25340780). During meiosis, it disrupts heterochromatic connections between achiasmate and chiasmate homologs after spindle assembly so that chromosomes can separate at prometaphase I (PubMed:25340780). During mitosis, it functions in the separation of sister chromatids by establishing amphitelic kinetochore attachments in mitotic spindles (PubMed:18752348). May have a role in chromatin condensation and chromosome structure (PubMed:14600258, PubMed:18752348, PubMed:25340780). May be involved in X-chromosome dosage compensation, perhaps by modifying the topological state of compensated genes (PubMed:23989663). Regulates activity of the gypsy chromatin insulator complex by binding to mod(mdg4) and preventing its degradation (PubMed:21304601).
Catalytic Activity
ATP-dependent breakage, passage and rejoining of double-stranded DNA.
Biophysicochemical Properties
200 uM for negatively supercoiled double-stranded plasmid DNA (at 30 degrees Celsius)
140 uM for negatively supercoiled double-stranded viral DNA (at 30 degrees Celsius)
270 uM for positively supercoiled double-stranded linear DNA
280 uM for ATP (at 30 degrees Celsius)
630 uM for dATP (at 30 degrees Celsius)
Subunit
Homodimer.
Homodimer (By similarity). Interacts with mod(mdg4) (PubMed:21304601). Interacts with barr (PubMed:8978614, PubMed:11172718). Interacts with ph-p (PubMed:11172718). Interacts with mle; the interaction mediates association with the MSL dosage compensation complex (PubMed:23989663).
Miscellaneous
Eukaryotic topoisomerase I and II can relax both negative and positive supercoils, whereas prokaryotic enzymes relax only negative supercoils.
Similarity
Belongs to the type II topoisomerase family.
Keywords
ATP-binding   Complete proteome   DNA-binding   Isomerase   Magnesium   Metal-binding   Nucleotide-binding   Nucleus   Reference proteome   Topoisomerase   Chromosome   Cytoplasm   Phosphoprotein  
Feature
chain  DNA topoisomerase 2
EC Number
5.6.2.3
EMBL
BABH01012345    BABH01012346    AF013277    RSAL01000010    RVE53729.1    KQ459590    + More
KPI97206.1    ODYU01002280    SOQ39549.1    KQ460391    KPJ15409.1    AGBW02008251    OWR53943.1    NWSH01000006    PCG80979.1    KZ149896    PZC78774.1    KQ971327    EFA01344.2    JXUM01070453    JXUM01070454    JXUM01070455    JXUM01070456    GAPW01000012    KQ562607    JAC13586.1    KXJ75497.1    CH477899    EAT35234.1    UFQT01001257    SSX29717.1    DS232058    EDS33447.1    GFDL01014262    JAV20783.1    GFDL01014317    JAV20728.1    AXCM01003842    ADMH02000654    ETN65432.1    AXCN02002068    GANO01000357    JAB59514.1    APCN01003377    GGFK01004819    MBW38140.1    ATLV01021228    KE525315    KFB46136.1    GGFK01004840    MBW38161.1    AAAB01008984    JRES01000523    KNC30443.1    EAA14841.5    UFQS01003307    UFQT01003307    SSX15469.1    SSX34837.1    KA645386    AFP60015.1    KQ978287    KYM95625.1    KY211688    ASK50299.1    GECZ01020865    GECZ01019696    JAS48904.1    JAS50073.1    OUUW01000010    SPP85480.1    SPP85481.1    CVRI01000043    CRK96023.1    CP012523    ALC39502.1    NNAY01000334    OXU29132.1    GL888103    EGI67367.1    CH480822    EDW55760.1    KQ976736    KYM76030.1    CM002910    KMY91016.1    KQ983106    KYQ47393.1    APGK01039221    KB740969    KB632165    ENN76679.1    ERL89297.1    ADTU01013726    ADTU01013727    GFDF01003200    JAV10884.1    KQ979479    KYN21352.1    GL438827    EFN68242.1    CH940654    EDW57515.1    KRF77804.1    CH379061    EAL33325.3    CH479195    EDW27297.1    KRT04902.1    KQ981490    KYN41379.1    JXJN01024045    CH933807    EDW13467.1    KRG03775.1    GFXV01005589    MBW17394.1    KK107295    EZA52979.1    NEVH01011228    PNF31624.1    CH916368    EDW03188.1    GL768057    EFZ12747.1    GL446678    EFN87409.1    AE014134    X61209    BT010240    BT150455    AAQ23558.1    CH902620    EDV32043.1    KQ434959    KZC12629.1    CCAG010019840    GBYB01007500    JAG77267.1    GGMR01018928    MBY31547.1    GGMR01010066    MBY22685.1    LBMM01002923    KMQ94173.1    CH963920    EDW78045.1    CH954179    EDV54653.1    GBBI01002640    JAC16072.1    GECL01003135    JAP02989.1    KQ435840    KOX71459.1    GBGD01000089    JAC88800.1    GGMS01005003    MBY74206.1    CM000158    EDW90417.1    GFTR01008819    JAW07607.1    ABLF02038748    ABLF02038754    ABLF02038760    ABLF02038761    GDHC01003611    JAQ15018.1   
Pfam
PF00521   DNA_topoisoIV        + More
PF16898   TOPRIM_C
PF02518   HATPase_c
PF01751   Toprim
PF00204   DNA_gyraseB
PF08070   DTHCT
Interpro
IPR013759   Topo_IIA_B_C        + More
IPR013758   Topo_IIA_A/C_ab       
IPR018522   TopoIIA_CS       
IPR034157   TOPRIM_TopoII       
IPR014721   Ribosomal_S5_D2-typ_fold_subgr       
IPR006171   TOPRIM_domain       
IPR013506   Topo_IIA_bsu_dom2       
IPR002205   Topo_IIA_A/C       
IPR001241   Topo_IIA       
IPR031660   TOPRIM_C       
IPR036890   HATPase_C_sf       
IPR013760   Topo_IIA-like_dom_sf       
IPR003594   HATPase_C       
IPR020568   Ribosomal_S5_D2-typ_fold       
IPR013757   Topo_IIA_A_a_sf       
IPR012542   DTHCT       
SUPFAM
SSF55874   SSF55874        + More
SSF54211   SSF54211       
SSF56719   SSF56719       
PDB
4GFH     E-value=0,     Score=2636

Ontologies

Topology

Subcellular location
Nucleus  
Chromosome   Nuclear at interphase, becoming diffusely dispersed in the cytoplasm at later cell cycle stages (PubMed:10885744, PubMed:10751154). However in early developing embryos, some may remain associated with condensed chromosomes at metaphase (PubMed:10885744).   With evidence from 5 publications.
Cytoplasm   Nuclear at interphase, becoming diffusely dispersed in the cytoplasm at later cell cycle stages (PubMed:10885744, PubMed:10751154). However in early developing embryos, some may remain associated with condensed chromosomes at metaphase (PubMed:10885744).   With evidence from 5 publications.
Length:
1543
Number of predicted TMHs:
0
Exp number of AAs in TMHs:
0.00239
Exp number, first 60 AAs:
0
Total prob of N-in:
0.00012
outside
1  -  1543
 
 

Population Genetic Test Statistics

Pi
225.088571
Theta
183.894504
Tajima's D
0.922851
CLR
0.669824
CSRT
0.632668366581671
Interpretation
Uncertain
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