ID G5IFN1_9CLOT Unreviewed; 692 AA.
AC G5IFN1;
DT 25-JAN-2012, integrated into UniProtKB/TrEMBL.
DT 25-JAN-2012, sequence version 1.
DT 27-MAR-2024, entry version 62.
DE RecName: Full=DNA topoisomerase 1 {ECO:0000256|HAMAP-Rule:MF_00952};
DE EC=5.6.2.1 {ECO:0000256|HAMAP-Rule:MF_00952};
DE AltName: Full=DNA topoisomerase I {ECO:0000256|HAMAP-Rule:MF_00952};
GN Name=topA {ECO:0000256|HAMAP-Rule:MF_00952};
GN ORFNames=HMPREF9473_02309 {ECO:0000313|EMBL:EHI59689.1};
OS Hungatella hathewayi WAL-18680.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae; Hungatella.
OX NCBI_TaxID=742737 {ECO:0000313|EMBL:EHI59689.1, ECO:0000313|Proteomes:UP000005384};
RN [1] {ECO:0000313|EMBL:EHI59689.1, ECO:0000313|Proteomes:UP000005384}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WAL-18680 {ECO:0000313|EMBL:EHI59689.1,
RC ECO:0000313|Proteomes:UP000005384};
RG The Broad Institute Genome Sequencing Platform;
RA Earl A., Ward D., Feldgarden M., Gevers D., Finegold S.M., Summanen P.H.,
RA Molitoris D.R., Song M., Daigneault M., Allen-Vercoe E., Young S.K.,
RA Zeng Q., Gargeya S., Fitzgerald M., Haas B., Abouelleil A., Alvarado L.,
RA Arachchi H.M., Berlin A., Brown A., Chapman S.B., Chen Z., Dunbar C.,
RA Freedman E., Gearin G., Gellesch M., Goldberg J., Griggs A., Gujja S.,
RA Heiman D., Howarth C., Larson L., Lui A., MacDonald P.J.P., Montmayeur A.,
RA Murphy C., Neiman D., Pearson M., Priest M., Roberts A., Saif S., Shea T.,
RA Shenoy N., Sisk P., Stolte C., Sykes S., Wortman J., Nusbaum C., Birren B.;
RT "The Genome Sequence of Clostridium hathewayi WAL-18680.";
RL Submitted (AUG-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Releases the supercoiling and torsional tension of DNA, which
CC is introduced during the DNA replication and transcription, by
CC transiently cleaving and rejoining one strand of the DNA duplex.
CC Introduces a single-strand break via transesterification at a target
CC site in duplex DNA. The scissile phosphodiester is attacked by the
CC catalytic tyrosine of the enzyme, resulting in the formation of a DNA-
CC (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH
CC DNA strand. The free DNA strand then undergoes passage around the
CC unbroken strand, thus removing DNA supercoils. Finally, in the
CC religation step, the DNA 3'-OH attacks the covalent intermediate to
CC expel the active-site tyrosine and restore the DNA phosphodiester
CC backbone. {ECO:0000256|HAMAP-Rule:MF_00952}.
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, ECO:0000256|HAMAP-
CC Rule:MF_00952};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_00952}.
CC -!- SIMILARITY: Belongs to the type IA topoisomerase family.
CC {ECO:0000256|ARBA:ARBA00009446, ECO:0000256|HAMAP-Rule:MF_00952}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EHI59689.1}.
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DR EMBL; ADLN01000048; EHI59689.1; -; Genomic_DNA.
DR RefSeq; WP_006780289.1; NZ_JH379027.1.
DR AlphaFoldDB; G5IFN1; -.
DR PATRIC; fig|742737.3.peg.2333; -.
DR HOGENOM; CLU_002929_4_3_9; -.
DR OrthoDB; 9804262at2; -.
DR Proteomes; UP000005384; Unassembled WGS sequence.
DR GO; GO:0005694; C:chromosome; IEA:InterPro.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR GO; GO:0003917; F:DNA topoisomerase type I (single strand cut, ATP-independent) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR CDD; cd00186; TOP1Ac; 1.
DR CDD; cd03363; TOPRIM_TopoIA_TopoI; 1.
DR Gene3D; 3.40.50.140; -; 1.
DR Gene3D; 3.30.65.10; Bacterial Topoisomerase I, domain 1; 2.
DR Gene3D; 1.10.460.10; Topoisomerase I, domain 2; 1.
DR Gene3D; 2.70.20.10; Topoisomerase I, domain 3; 1.
DR Gene3D; 1.10.290.10; Topoisomerase I, domain 4; 1.
DR HAMAP; MF_00952; Topoisom_1_prok; 1.
DR InterPro; IPR000380; Topo_IA.
DR InterPro; IPR003601; Topo_IA_2.
DR InterPro; IPR023406; Topo_IA_AS.
DR InterPro; IPR013497; Topo_IA_cen.
DR InterPro; IPR013824; Topo_IA_cen_sub1.
DR InterPro; IPR013825; Topo_IA_cen_sub2.
DR InterPro; IPR013826; Topo_IA_cen_sub3.
DR InterPro; IPR023405; Topo_IA_core_domain.
DR InterPro; IPR003602; Topo_IA_DNA-bd_dom.
DR InterPro; IPR013498; Topo_IA_Znf.
DR InterPro; IPR005733; TopoI_bac-type.
DR InterPro; IPR028612; Topoisom_1_IA.
DR InterPro; IPR006171; TOPRIM_domain.
DR InterPro; IPR034149; TOPRIM_TopoI.
DR NCBIfam; TIGR01051; topA_bact; 1.
DR PANTHER; PTHR42785:SF1; DNA TOPOISOMERASE; 1.
DR PANTHER; PTHR42785; DNA TOPOISOMERASE, TYPE IA, CORE; 1.
DR Pfam; PF01131; Topoisom_bac; 1.
DR Pfam; PF01751; Toprim; 1.
DR Pfam; PF01396; zf-C4_Topoisom; 3.
DR PRINTS; PR00417; PRTPISMRASEI.
DR SMART; SM00437; TOP1Ac; 1.
DR SMART; SM00436; TOP1Bc; 1.
DR SMART; SM00493; TOPRIM; 1.
DR SUPFAM; SSF56712; Prokaryotic type I DNA topoisomerase; 1.
DR SUPFAM; SSF57783; Zinc beta-ribbon; 1.
DR PROSITE; PS00396; TOPOISOMERASE_I_PROK; 1.
DR PROSITE; PS50880; TOPRIM; 1.
PE 3: Inferred from homology;
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_00952};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_00952};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Reference proteome {ECO:0000313|Proteomes:UP000005384};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_00952}; Zinc {ECO:0000256|ARBA:ARBA00022833};
KW Zinc-finger {ECO:0000256|ARBA:ARBA00022771}.
FT DOMAIN 3..116
FT /note="Toprim"
FT /evidence="ECO:0000259|PROSITE:PS50880"
FT REGION 166..171
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT ACT_SITE 303
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 33
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 142
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 143
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 146
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 151
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 158
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 305
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 493
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
SQ SEQUENCE 692 AA; 77945 MW; 963CEB832A8851E8 CRC64;
MAKYLVIVES PAKVKTIKKF LGANYDVDAS NGHVRDLPKS QLGIDVEHDY EPKYITIRGK
GDILAKLRKE VKKADVIYLA TDPDREGEAI SWHLVKALKL DEAKDKKVYR ISFNEITKNA
VKTSLKAPRE IDMDLVDAQQ TRRILDRMVG YTISPLLWAK VKRGLSAGRV QSVALRMICD
REDEINAFIP EEYWNLEADL LAQGSKKPLA AKFYGDKNGK MTIHNKEELD AILKKLKNKK
YVVEEVKNGE RVKKAPIPFT TSTLQQEASK VLNFSTQKTM RLAQQLYEGV EVKGHGTVGL
ITYLRTDSTR IAEEADVAAR AYIGEQYGSQ YVAQEEAAKK ANGKIQDAHE AIRPTDITLT
PVMVKESLQR DLFRLYQLIW KRFTASRMQP AVYDTVSVKV SAGEYSFTLA ASKLSFDGFM
SVYVQEEDKE DSNMLLGKLE KGAELKLSEL KHSQHFTQPP AHFTEASLVK AMEEQGIGRP
STYAPTITTI IARRYVAKEN KNLYVTELGE VVNRIMKENF PSIVDLQFTA NMEYLLDRVG
DGSAAWKTVV ANFYPDLESA VKKAEKELES VTIADEVSEE VCELCGRNMV IKYGPHGKFL
ACPGFPDCKN TKPYFEKIGV PCPKCGKDVV IKKTKKGRKY YGCESNPECD FMSWQKPSTE
KCPECGAYMV EKGNKLLCSD EKCGYSMNLK TK
//
