ID A1ALD9_PELPD Unreviewed; 776 AA.
AC A1ALD9;
DT 23-JAN-2007, integrated into UniProtKB/TrEMBL.
DT 23-JAN-2007, sequence version 1.
DT 27-MAR-2024, entry version 116.
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 OrderedLocusNames=Ppro_0528 {ECO:0000313|EMBL:ABK98159.1};
OS Pelobacter propionicus (strain DSM 2379 / NBRC 103807 / OttBd1).
OC Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Desulfuromonadales;
OC Desulfuromonadaceae; Pelobacter.
OX NCBI_TaxID=338966 {ECO:0000313|EMBL:ABK98159.1, ECO:0000313|Proteomes:UP000006732};
RN [1] {ECO:0000313|EMBL:ABK98159.1, ECO:0000313|Proteomes:UP000006732}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 2379 / NBRC 103807 / OttBd1
RC {ECO:0000313|Proteomes:UP000006732};
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Saunders E., Brettin T., Bruce D., Han C., Tapia R., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Lovley D.,
RA Richardson P.;
RT "Complete sequence of chromosome of Pelobacter propionicus DSM 2379.";
RL Submitted (OCT-2006) 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: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00952}.
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DR EMBL; CP000482; ABK98159.1; -; Genomic_DNA.
DR RefSeq; WP_011734472.1; NC_008609.1.
DR AlphaFoldDB; A1ALD9; -.
DR STRING; 338966.Ppro_0528; -.
DR KEGG; ppd:Ppro_0528; -.
DR eggNOG; COG0550; Bacteria.
DR HOGENOM; CLU_002929_4_3_7; -.
DR OrthoDB; 9804262at2; -.
DR Proteomes; UP000006732; Chromosome.
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; 3.
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; 4.
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; 2.
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:UP000006732};
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..117
FT /note="Toprim"
FT /evidence="ECO:0000259|PROSITE:PS50880"
FT REGION 167..172
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT ACT_SITE 306
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 143
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 147
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 159
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 308
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 522
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
SQ SEQUENCE 776 AA; 86766 MW; 6148FC59D5ED314D CRC64;
MPQNLVIVES PAKAKTIEKF LGKDYKVLAS FGHVRALPSK QGSVDIEQDF TPKYHILPES
KKHIDAIKAA LKDAKNLLLA TDPDREGEAI SWHLLAALGL DKKNPGKSIQ RVVFHEITKD
AIIHAVENPR DIATDLVDAQ QARSVLDYLV GFNLSPFLWK KIRYGLSAGR VQSVALRLVC
EREKEIQAFK EQEYWTIAAR LGVKPGAEFR ASLVEVGGKK LGKFDIPDEN VATALNRALK
SGSYRVAKIT RTERKRNPSP PFTTSTLQQE ASRKLGFSAK KTMSTAQKLY EGIDIGQEGT
VGLITYMRTD SVTLSSQALT EAHEVISAAY GAEYALAKPR IFKTKTKNAQ EAHEAVRPTS
IARTPAELKK HLTPDLFKLY ELIWKRTVAS QMAEALLDQT SVDIAAELNE AVADCTVAES
GAASPFTGAK RCGLRAAGTV IRFPGFMKLY IEGLDDQDEE KEGLLPPLQE GDDLKLHELF
PEQHFTQPPP RYTEATLVKT LEEYGIGRPS TYASIMNTLV ERKYTRLDKK RFFPEDVGMV
VNDLLVAHFS RYVDYNFTAG LEEELDQVSR GEKQWKPLLK EFWEPFITLL KQKEGEVKKD
DLTTTELDEV CPECGKPLAI KLGKRGKFIA CTGFKEGCTY TRNLESDASE PSEPVLSDEK
CDKCGQQMLI KDGRYGKYLA CSGYPACKNI QPLVKPRGTG VVCPECKEGE LTEKKSRFGK
LFYSCNRYPQ CKFALWDPPV EQPCPKCGFP LLVKKVYKRK GEFLKCPKEG CDYTSE
//
