ID E4UD31_LIBSC Unreviewed; 840 AA.
AC E4UD31;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 27-MAR-2024, entry version 77.
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=CKC_02610 {ECO:0000313|EMBL:ADR52271.1};
OS Liberibacter solanacearum (strain CLso-ZC1).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Liberibacter.
OX NCBI_TaxID=658172 {ECO:0000313|EMBL:ADR52271.1, ECO:0000313|Proteomes:UP000007038};
RN [1] {ECO:0000313|Proteomes:UP000007038}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CLso-ZC1 {ECO:0000313|Proteomes:UP000007038};
RA Lin H., Doddapaneni H.V., Lou B., Civerolo E.L., Chen C., Duan Y., Zhou L.,
RA Glynn J.;
RT "Complete genome sequence of Candidatus Liberibacter solanacearum CLso-
RT ZC1.";
RL Submitted (NOV-2010) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=CLso-ZC1;
RA Lin H., Doddapaneni H.V., Lou B., Civerolo E.L., Chen C., Duan Y., Zhou L.,
RA Glynn J.;
RL Submitted (NOV-2010) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:ADR52271.1, ECO:0000313|Proteomes:UP000007038}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CLso-ZC1 {ECO:0000313|EMBL:ADR52271.1,
RC ECO:0000313|Proteomes:UP000007038};
RX PubMed=21552483; DOI=10.1371/journal.pone.0019135;
RA Lin H., Lou B., Glynn J.M., Doddapaneni H., Civerolo E.L., Chen C.,
RA Duan Y., Zhou L., Vahling C.M.;
RT "The Complete Genome Sequence of 'Candidatus Liberibacter solanacearum',
RT the Bacterium Associated with Potato Zebra Chip Disease.";
RL PLoS ONE 6:E19135-E19135(2011).
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; CP002371; ADR52271.1; -; Genomic_DNA.
DR RefSeq; WP_013461927.1; NC_014774.1.
DR AlphaFoldDB; E4UD31; -.
DR STRING; 658172.CKC_02610; -.
DR KEGG; lso:CKC_02610; -.
DR eggNOG; COG0550; Bacteria.
DR eggNOG; COG1754; Bacteria.
DR HOGENOM; CLU_002929_0_2_5; -.
DR Proteomes; UP000007038; 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; 1.
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; IPR025589; Toprim_C_rpt.
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; PF13368; Toprim_C_rpt; 3.
DR Pfam; PF01396; zf-C4_Topoisom; 1.
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 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 1..111
FT /note="Toprim"
FT /evidence="ECO:0000259|PROSITE:PS50880"
FT REGION 165..170
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT REGION 766..787
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 303
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 31
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 141
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 145
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
FT SITE 157
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 501
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00952"
SQ SEQUENCE 840 AA; 95746 MW; 52985317EABA1B1E CRC64;
MNVIIVESPA KAKTISKYLG PDYKVLSSFG HVRDLPAKKG SVLPEKNFEM LWETDKSSQK
HLENIISAVK SSTLLILATD PDREGEAISW HVLDILRQRN LIGERKIKRV SFNAITKKVV
LNAMENTRDL NLDLVNAYLA RRALDYLVGF NLSPILWRKL PGARSAGRVQ SVALRLICHR
ENQIECFVSE EYWLLSVLLE TPRGDKFIAR LVDFNGQRIE KTSIGNKKEA DKLISFLEKA
TYIVKNTETK PIKRNPWPAF TTSTLQQAAS SRLGFSPSYT MRIAQKLYEG IDVNGEVVGL
ITYMRTDSVH LSLDALEEVR RSISSNFGNS YLPDKPRIYS VKAKNAQEAH EAIRPNDFNF
LPSEMKKFLD SDQFQLYNLI WKRSVASQMA SAEFERTTIS IDATYEDQIA HLRTVGSCLR
FDGFLKVWEN QNDQENNSDE DKLLPCINKN EKLLAKETNA SQHFTEAPLR YSESSLIKKM
EELGIGRPST YAAILETLSK RRYIVIEKRK LFPQNTGRIV TAFLENFFSR YVEYDFTADL
EEKLDKISSG KLDWKEVLHE FWKEFIEKID STKELRTSNV LDILNDTLSS VIFPAKDNNE
DSRTCPSCQK NPLSIKLSSK YGAFVGCTNY PECKYTRQLT TSNQQYIEEN LEPLLLGDDP
ETKEPITLRS GRFGFYVQRG DGKDAKRCGL PKNWDRESID YDKALSLISL PREIGIHPET
QKSIIASMGK YGCYLKHDGH HTKLESIEQV LTINLDQAIS CMIQKNKKEK SSRTSTKNQG
HVIGIHPEGG SITIHRGRYG PYLNWGKINA SIPNNENPDT IDLENALKIF ETKIKGKKKS
//
