ID H3G762_PHYRM Unreviewed; 647 AA.
AC H3G762;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 58.
DE RecName: Full=DNA topoisomerase I {ECO:0000256|RuleBase:RU365101};
DE EC=5.6.2.1 {ECO:0000256|RuleBase:RU365101};
DE AltName: Full=DNA topoisomerase 1 {ECO:0000256|RuleBase:RU365101};
OS Phytophthora ramorum (Sudden oak death agent).
OC Eukaryota; Sar; Stramenopiles; Oomycota; Peronosporales; Peronosporaceae;
OC Phytophthora.
OX NCBI_TaxID=164328 {ECO:0000313|EnsemblProtists:Phyra49727, ECO:0000313|Proteomes:UP000005238};
RN [1] {ECO:0000313|Proteomes:UP000005238}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Pr102 {ECO:0000313|Proteomes:UP000005238};
RX PubMed=16946064; DOI=10.1126/science.1128796;
RA Tyler B.M., Tripathy S., Zhang X., Dehal P., Jiang R.H., Aerts A.,
RA Arredondo F.D., Baxter L., Bensasson D., Beynon J.L., Chapman J.,
RA Damasceno C.M., Dorrance A.E., Dou D., Dickerman A.W., Dubchak I.L.,
RA Garbelotto M., Gijzen M., Gordon S.G., Govers F., Grunwald N.J., Huang W.,
RA Ivors K.L., Jones R.W., Kamoun S., Krampis K., Lamour K.H., Lee M.K.,
RA McDonald W.H., Medina M., Meijer H.J., Nordberg E.K., Maclean D.J.,
RA Ospina-Giraldo M.D., Morris P.F., Phuntumart V., Putnam N.H., Rash S.,
RA Rose J.K., Sakihama Y., Salamov A.A., Savidor A., Scheuring C.F.,
RA Smith B.M., Sobral B.W., Terry A., Torto-Alalibo T.A., Win J., Xu Z.,
RA Zhang H., Grigoriev I.V., Rokhsar D.S., Boore J.L.;
RT "Phytophthora genome sequences uncover evolutionary origins and mechanisms
RT of pathogenesis.";
RL Science 313:1261-1266(2006).
RN [2] {ECO:0000313|EnsemblProtists:Phyra49727}
RP IDENTIFICATION.
RC STRAIN=Pr102 {ECO:0000313|EnsemblProtists:Phyra49727};
RG EnsemblProtists;
RL Submitted (JUN-2015) to UniProtKB.
CC -!- FUNCTION: Releases the supercoiling and torsional tension of DNA
CC introduced during the DNA replication and transcription by transiently
CC cleaving and rejoining one strand of the DNA duplex. Introduces a
CC single-strand break via transesterification at the specific target site
CC 5'-[CT]CCTTp site in duplex DNA. The scissile phosphodiester is
CC attacked by the catalytic tyrosine of the enzyme, resulting in the
CC formation of a DNA-(3'-phosphotyrosyl)-enzyme intermediate and the
CC expulsion of a 5'-OH DNA strand. The free DNA strand then undergoes
CC passage around the unbroken strand thus removing DNA supercoils.
CC Finally, in the religation step, the DNA 5'-OH attacks the covalent
CC intermediate to expel the active-site tyrosine and restore the DNA
CC phosphodiester backbone. {ECO:0000256|RuleBase:RU365101}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP-independent breakage of single-stranded DNA, followed by
CC passage and rejoining.; EC=5.6.2.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000213,
CC ECO:0000256|RuleBase:RU365101};
CC -!- SIMILARITY: Belongs to the type IB topoisomerase family.
CC {ECO:0000256|ARBA:ARBA00006645, ECO:0000256|RuleBase:RU365101}.
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DR EMBL; DS566046; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; H3G762; -.
DR STRING; 164328.H3G762; -.
DR EnsemblProtists; Phyra49727; Phyra49727; Phyra49727.
DR VEuPathDB; FungiDB:PSURA_49727; -.
DR eggNOG; KOG0981; Eukaryota.
DR HOGENOM; CLU_009193_2_0_1; -.
DR InParanoid; H3G762; -.
DR OMA; HRWKEVK; -.
DR Proteomes; UP000005238; Unassembled WGS sequence.
DR GO; GO:0005694; C:chromosome; IEA:InterPro.
DR GO; GO:0005730; C:nucleolus; IBA:GO_Central.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003917; F:DNA topoisomerase type I (single strand cut, ATP-independent) activity; IBA:GO_Central.
DR GO; GO:0007059; P:chromosome segregation; IBA:GO_Central.
DR GO; GO:0006260; P:DNA replication; IBA:GO_Central.
DR GO; GO:0006265; P:DNA topological change; IBA:GO_Central.
DR CDD; cd00659; Topo_IB_C; 1.
DR Gene3D; 1.10.132.10; -; 1.
DR Gene3D; 2.170.11.10; DNA Topoisomerase I, domain 2; 1.
DR Gene3D; 1.10.10.41; Yeast DNA topoisomerase - domain 1; 1.
DR InterPro; IPR011010; DNA_brk_join_enz.
DR InterPro; IPR013034; DNA_topo_DNA_db_N_dom1.
DR InterPro; IPR013030; DNA_topo_DNA_db_N_dom2.
DR InterPro; IPR001631; TopoI.
DR InterPro; IPR018521; TopoI_AS.
DR InterPro; IPR025834; TopoI_C_dom.
DR InterPro; IPR014711; TopoI_cat_a-hlx-sub_euk.
DR InterPro; IPR014727; TopoI_cat_a/b-sub_euk.
DR InterPro; IPR013500; TopoI_cat_euk.
DR InterPro; IPR008336; TopoI_DNA-bd_euk.
DR InterPro; IPR036202; TopoI_DNA-bd_euk_N_sf.
DR InterPro; IPR013499; TopoI_euk.
DR PANTHER; PTHR10290:SF23; DNA TOPOISOMERASE 1; 1.
DR PANTHER; PTHR10290; DNA TOPOISOMERASE I; 1.
DR Pfam; PF14370; Topo_C_assoc; 1.
DR Pfam; PF01028; Topoisom_I; 1.
DR Pfam; PF02919; Topoisom_I_N; 1.
DR PRINTS; PR00416; EUTPISMRASEI.
DR SMART; SM00435; TOPEUc; 1.
DR SUPFAM; SSF56349; DNA breaking-rejoining enzymes; 1.
DR SUPFAM; SSF56741; Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment; 1.
DR PROSITE; PS00176; TOPOISOMERASE_I_EUK; 1.
PE 3: Inferred from homology;
KW Coiled coil {ECO:0000256|SAM:Coils};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|RuleBase:RU365101};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|RuleBase:RU365101};
KW Reference proteome {ECO:0000313|Proteomes:UP000005238};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029,
KW ECO:0000256|RuleBase:RU365101}.
FT DOMAIN 213..620
FT /note="DNA topoisomerase I eukaryotic-type"
FT /evidence="ECO:0000259|SMART:SM00435"
FT REGION 1..33
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 155..182
FT /evidence="ECO:0000256|SAM:Coils"
FT COILED 567..594
FT /evidence="ECO:0000256|SAM:Coils"
FT COMPBIAS 1..23
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 647 AA; 73456 MW; 411BB0AA06F55766 CRC64;
SPSSTSSSKS RKTKANSSAT VSKTKTRVKK EKGANVRKLK VHSKSERLDM AIKAFRWWNA
EELPEGIQWR TLEHNGVMFP PPYQPHHVPL IYNDKEVELT PTQEEVASFY AAIPKDGPQL
GNPKTAKIFN KNFFTDFKKV LGRQHDIKTF DGCDFSRIAV HLENLREEKK NMTKEEKLPE
KEKREMELFT NGFAFVDGHL EKVGNFRIEP PGLFRGRGEH PKTGTLKERV MPEDVTVNVG
ISDRVPICNV PGHAWKQVIH RDTVSWLAYW NENVMGGIKY VFFAASSSFK GKSDLAKYDK
ARRLKKCIDK IRRDYTKGLR AKDMFTKQRS TAMWVIDVLA LRVGNEKGED EADTVGCCSL
RVEHMSFNDE TCALTLSFLG KDSMPYNNTV ELAQYGDVGK QVYKNLQTFC VKKGKNEDVF
HELSVTELNK HLSSLMPGLS AKVFRTFNAS FTLEKELPGP SGQELDPKGK MEVAPKVVLY
NDANRKVAIL CNHQRTAPKS FDTTLDKMNA QLDQLKGQLK DLKQMQALIA KGKSDKIKLK
SATADSKEDD ALAKKAQAHL FQRAPSADQV AKKIENWKKK IKALSLRLQD KTDNKEVALG
TSKLNYMDPR ITVAWCKRNE VPISAVFSKT LREKFVWAMD VDPDWKF
//
