ID B5ID91_ACIB4 Unreviewed; 1030 AA.
AC B5ID91;
DT 14-OCT-2008, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2008, sequence version 1.
DT 27-MAR-2024, entry version 108.
DE RecName: Full=Reverse gyrase {ECO:0000256|HAMAP-Rule:MF_01125, ECO:0000256|RuleBase:RU004026};
DE EC=5.6.2.- {ECO:0000256|HAMAP-Rule:MF_01125};
GN Name=rgy {ECO:0000256|HAMAP-Rule:MF_01125};
GN OrderedLocusNames=Aboo_0951 {ECO:0000313|EMBL:ADD08760.1};
OS Aciduliprofundum boonei (strain DSM 19572 / T469).
OC Archaea; Candidatus Thermoplasmatota; DHVE2 group; Aciduliprofundum.
OX NCBI_TaxID=439481 {ECO:0000313|EMBL:ADD08760.1, ECO:0000313|Proteomes:UP000001400};
RN [1] {ECO:0000313|Proteomes:UP000001400}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19572 / T469 {ECO:0000313|Proteomes:UP000001400};
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA Pitluck S., Saunders E., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Flores G., Reysenbach A.-L., Woyke T.;
RT "Complete sequence of Aciduliprofundum boonei T469.";
RL Submitted (FEB-2010) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Modifies the topological state of DNA by introducing positive
CC supercoils in an ATP-dependent process, increasing the linking number
CC in steps of +1. Binds to single-stranded DNA, transiently cleaves and
CC then rejoins the ends, introducing a positive supercoil in the process.
CC The scissile phosphodiester is attacked by the catalytic tyrosine of
CC the enzyme, resulting in the formation of a DNA-(5'-phosphotyrosyl)-
CC enzyme intermediate. Involved in rewinding DNA strands in regions of
CC the chromosome that have opened up to allow replication, transcription,
CC DNA repair and/or for DNA protection. {ECO:0000256|RuleBase:RU004026}.
CC -!- FUNCTION: Modifies the topological state of DNA by introducing positive
CC supercoils in an ATP-dependent process, increasing the linking number
CC in steps of +1. Binds to single-stranded DNA, transiently cleaves and
CC then rejoins the ends, introducing a positive supercoil in the process.
CC The scissile phosphodiester is attacked by the catalytic tyrosine of
CC the enzyme, resulting in the formation of a DNA-(5'-phosphotyrosyl)-
CC enzyme intermediate. Probably involved in rewinding DNA strands in
CC regions of the chromosome that have opened up to allow replication,
CC transcription, DNA repair and/or for DNA protection.
CC {ECO:0000256|HAMAP-Rule:MF_01125}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:456216;
CC Evidence={ECO:0000256|ARBA:ARBA00001836, ECO:0000256|HAMAP-
CC Rule:MF_01125, ECO:0000256|RuleBase:RU004026};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01125};
CC Note=Binds 1 or 2 zinc ions per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01125};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01125}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_01125}.
CC -!- DOMAIN: Introduction of positive supercoils requires the cooperation of
CC both domains. The helicase-like domain probably does not directly
CC unwind DNA, but more likely acts by driving ATP-dependent
CC conformational changes within the whole enzyme. A beta hairpin in the
CC 'latch' region of the N-terminal domain plays a regulatory role in the
CC enzyme, repressing topoisomerase activity in the absence of ATP and
CC preventing the enzyme from acting as an ATP-independent relaxing
CC enzyme; it also helps to coordinate nucleotide hydrolysis by the ATPase
CC domain with the supercoiling activity of the topoisomerase domain.
CC {ECO:0000256|HAMAP-Rule:MF_01125}.
CC -!- MISCELLANEOUS: This enzyme is the only unique feature of
CC hyperthermophilic bacteria/archaea known and seems to be essential for
CC adaptation to life at high temperatures. It may play a role in
CC stabilization of DNA at high temperatures. {ECO:0000256|HAMAP-
CC Rule:MF_01125}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the type IA
CC topoisomerase family. {ECO:0000256|HAMAP-Rule:MF_01125}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the DEAD box helicase
CC family. DDVD subfamily. {ECO:0000256|ARBA:ARBA00043976,
CC ECO:0000256|HAMAP-Rule:MF_01125}.
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DR EMBL; CP001941; ADD08760.1; -; Genomic_DNA.
DR RefSeq; WP_008084248.1; NC_013926.1.
DR AlphaFoldDB; B5ID91; -.
DR STRING; 439481.Aboo_0951; -.
DR GeneID; 8827905; -.
DR KEGG; abi:Aboo_0951; -.
DR eggNOG; arCOG01526; Archaea.
DR HOGENOM; CLU_002886_0_0_2; -.
DR OrthoDB; 30963at2157; -.
DR Proteomes; UP000001400; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003918; F:DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004386; F:helicase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016787; F:hydrolase activity; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR GO; GO:0006268; P:DNA unwinding involved in DNA replication; IEA:UniProtKB-UniRule.
DR CDD; cd17924; DDXDc_reverse_gyrase; 1.
DR CDD; cd00186; TOP1Ac; 1.
DR CDD; cd03361; TOPRIM_TopoIA_RevGyr; 1.
DR Gene3D; 2.60.510.20; -; 1.
DR Gene3D; 3.40.50.140; -; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 3.
DR Gene3D; 1.10.460.10; Topoisomerase I, domain 2; 1.
DR Gene3D; 1.10.290.10; Topoisomerase I, domain 4; 1.
DR HAMAP; MF_01125; Reverse_gyrase; 1.
DR InterPro; IPR011545; DEAD/DEAH_box_helicase_dom.
DR InterPro; IPR014001; Helicase_ATP-bd.
DR InterPro; IPR001650; Helicase_C.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005736; Reverse_gyrase.
DR InterPro; IPR003601; Topo_IA_2.
DR InterPro; IPR013497; Topo_IA_cen.
DR InterPro; IPR013824; Topo_IA_cen_sub1.
DR InterPro; IPR013826; Topo_IA_cen_sub3.
DR InterPro; IPR023405; Topo_IA_core_domain.
DR InterPro; IPR003602; Topo_IA_DNA-bd_dom.
DR InterPro; IPR006171; TOPRIM_domain.
DR InterPro; IPR034142; TOPRIM_RevGyr.
DR NCBIfam; TIGR01054; rgy; 1.
DR PANTHER; PTHR43505; REVERSE GYRASE; 1.
DR PANTHER; PTHR43505:SF1; REVERSE GYRASE; 1.
DR Pfam; PF00270; DEAD; 1.
DR Pfam; PF01131; Topoisom_bac; 1.
DR Pfam; PF01751; Toprim; 1.
DR PRINTS; PR00417; PRTPISMRASEI.
DR SMART; SM00487; DEXDc; 1.
DR SMART; SM00490; HELICc; 1.
DR SMART; SM00437; TOP1Ac; 1.
DR SMART; SM00436; TOP1Bc; 1.
DR SMART; SM00493; TOPRIM; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 2.
DR SUPFAM; SSF56712; Prokaryotic type I DNA topoisomerase; 1.
DR PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR PROSITE; PS50880; TOPRIM; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01125};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01125};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01125}; Hydrolase {ECO:0000256|HAMAP-Rule:MF_01125};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01125};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01125,
KW ECO:0000256|RuleBase:RU004026};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01125}; Reference proteome {ECO:0000313|Proteomes:UP000001400};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01125};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_01125};
KW Zinc-finger {ECO:0000256|ARBA:ARBA00022771, ECO:0000256|HAMAP-
KW Rule:MF_01125}.
FT REGION 479..1030
FT /note="Topoisomerase I"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01125"
FT ACT_SITE 785
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01125"
FT BINDING 62
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01125"
SQ SEQUENCE 1030 AA; 118151 MW; AF7196879977EB54 CRC64;
MIPVIYGELC PQCHDKLSWK EIENNLCENT GKELSRTRES EIYGEFEKFF VEKFGSKPRA
IQRMWARRVL AGKSFAAIAP TGIGKTSFGI LMSMFLARKG KKSYLLVPTT IILKDMVKKF
EDLGEDIAFY HSKMKGEEKK GMENRIKEGK FNILITTTAY LARNHKNLYG KFFHFIFVDD
VDSLLKRSKN LEKVLKILHK KGVLMVSTAT GTKGYNTKIL RDKLGFDVGN MRNAVRNIED
IYASKDTLKD ILNAMGSGAL IFAPTAKEAK TLADRIGDKA GLVIEKDKRA YDDFQAGKLD
YLVGVSTPYG SLIRGIDMPD RIRYVIFYGI PRFKINAENL DDFGDKLMLS LAYGLRDYGF
DEYIKNRNVK EIREKLKSIL QNRKDIRGED FIYKNGHIIF PDVKTYIQGS GRASRLYAGG
ITKGASFLLD GDDMVEIFLQ RAELYGIEFK SLEDVDIESL KREIDRDRRR IAEKVEEKDV
ITPSLFIVES PNKAKHIAHF FGKPNLRIIG NAVVYEVAVG DRVLTIAPSL GHTVDLSTTQ
GYYGVVIKTG LFIPVYSPIR KCRDCGYQFT EGNKCPVCGS EDIYNAREQI EILRRLAYEC
EDVIIGTDPD TEGEKIAWDL RNLLSPFAKS IKRAEFHEVT KDAIIKAIRE SREFDENLVK
AQIVRRIEDR WIGFELSHIL WNLFGKKNLS AGRAQTPVLG WIIERYEKSK EIREEYFIKG
TDVKSPWKEN VLAKVEKIGD EVKDYVVPPY TTDEILKDAN TILGLGAREA MNILQDLFES
GLITYHRTDS THVSQEGMSI AKKYLGEDFR PRRWGKEGAH ECIRPTKPWS AEDIRRFVNE
GILNLEIQDE ALRVYDLIFR RFMASESVGK IRISKYKVSA KGKVLEIPLI VEAYGKSVEL
YPYRIKVYRP LPTGMVRIEV EKRKIKLAPY TQADVIRLMK DRKIGRPSTY ATIISKLFKR
DYIVERSGKL IPTRIGIEVY SFLSTNYGKF VSEERTRILE RKMEDVENGN RDYLYVLNEL
YEEIGKIRGN
//
