ID A0A2P8CAG7_9BACT Unreviewed; 836 AA.
AC A0A2P8CAG7;
DT 23-MAY-2018, integrated into UniProtKB/TrEMBL.
DT 23-MAY-2018, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=DNA gyrase subunit A {ECO:0000256|HAMAP-Rule:MF_01897};
DE EC=5.6.2.2 {ECO:0000256|HAMAP-Rule:MF_01897};
GN Name=gyrA {ECO:0000256|HAMAP-Rule:MF_01897};
GN ORFNames=CLV93_10774 {ECO:0000313|EMBL:PSK81964.1};
OS Prolixibacter denitrificans.
OC Bacteria; Bacteroidota; Bacteroidia; Marinilabiliales; Prolixibacteraceae;
OC Prolixibacter.
OX NCBI_TaxID=1541063 {ECO:0000313|EMBL:PSK81964.1, ECO:0000313|Proteomes:UP000240621};
RN [1] {ECO:0000313|EMBL:PSK81964.1, ECO:0000313|Proteomes:UP000240621}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 27267 {ECO:0000313|EMBL:PSK81964.1,
RC ECO:0000313|Proteomes:UP000240621};
RA Goeker M.;
RT "Genomic Encyclopedia of Archaeal and Bacterial Type Strains, Phase II
RT (KMG-II): from individual species to whole genera.";
RL Submitted (MAR-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: A type II topoisomerase that negatively supercoils closed
CC circular double-stranded (ds) DNA in an ATP-dependent manner to
CC modulate DNA topology and maintain chromosomes in an underwound state.
CC Negative supercoiling favors strand separation, and DNA replication,
CC transcription, recombination and repair, all of which involve strand
CC separation. Also able to catalyze the interconversion of other
CC topological isomers of dsDNA rings, including catenanes and knotted
CC rings. Type II topoisomerases break and join 2 DNA strands
CC simultaneously in an ATP-dependent manner. {ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP-dependent breakage, passage and rejoining of double-
CC stranded DNA.; EC=5.6.2.2; Evidence={ECO:0000256|ARBA:ARBA00000185,
CC ECO:0000256|HAMAP-Rule:MF_01897};
CC -!- SUBUNIT: Heterotetramer, composed of two GyrA and two GyrB chains. In
CC the heterotetramer, GyrA contains the active site tyrosine that forms a
CC transient covalent intermediate with DNA, while GyrB binds cofactors
CC and catalyzes ATP hydrolysis. {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- MISCELLANEOUS: Few gyrases are as efficient as E.coli at forming
CC negative supercoils. Not all organisms have 2 type II topoisomerases;
CC in organisms with a single type II topoisomerase this enzyme also has
CC to decatenate newly replicated chromosomes. {ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- SIMILARITY: Belongs to the type II topoisomerase GyrA/ParC subunit
CC family. {ECO:0000256|ARBA:ARBA00008263, ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01897}.
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:PSK81964.1}.
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DR EMBL; PYGC01000007; PSK81964.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2P8CAG7; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000240621; Unassembled WGS sequence.
DR GO; GO:0005694; C:chromosome; IEA:InterPro.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0034335; F:DNA negative supercoiling activity; IEA:UniProt.
DR GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR CDD; cd00187; TOP4c; 1.
DR Gene3D; 3.30.1360.40; -; 1.
DR Gene3D; 2.120.10.90; DNA gyrase/topoisomerase IV, subunit A, C-terminal; 1.
DR Gene3D; 3.90.199.10; Topoisomerase II, domain 5; 1.
DR Gene3D; 1.10.268.10; Topoisomerase, domain 3; 1.
DR HAMAP; MF_01897; GyrA; 1.
DR InterPro; IPR005743; GyrA.
DR InterPro; IPR006691; GyrA/parC_rep.
DR InterPro; IPR035516; Gyrase/topoIV_suA_C.
DR InterPro; IPR013760; Topo_IIA-like_dom_sf.
DR InterPro; IPR013758; Topo_IIA_A/C_ab.
DR InterPro; IPR013757; Topo_IIA_A_a_sf.
DR InterPro; IPR002205; Topo_IIA_dom_A.
DR NCBIfam; TIGR01063; gyrA; 1.
DR PANTHER; PTHR43493:SF5; DNA GYRASE SUBUNIT A, CHLOROPLASTIC_MITOCHONDRIAL; 1.
DR PANTHER; PTHR43493; DNA GYRASE/TOPOISOMERASE SUBUNIT A; 1.
DR Pfam; PF03989; DNA_gyraseA_C; 6.
DR Pfam; PF00521; DNA_topoisoIV; 1.
DR SMART; SM00434; TOP4c; 1.
DR SUPFAM; SSF101904; GyrA/ParC C-terminal domain-like; 1.
DR SUPFAM; SSF56719; Type II DNA topoisomerase; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01897}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01897};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01897};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01897};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01897};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 10..463
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT ACT_SITE 121
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 836 AA; 93891 MW; 57227DDAA2BC5CC8 CRC64;
MADGEKIIKI NIEEQMKSAY IDYSMSVIVS RALPDVRDGL KPVHRRILFG MGELGIYSNR
SYKKSARIVG EVLGKYHPHG DSSVYFAMVR MAQQWSMRYR LVDGQGNFGS VDGDSPAAMR
YTEARLQKLA EEALADLDKN TVDFAPNFDE SLKEPTVLPA KFPNLLVNGA SGIAVGMATN
MPPHNLTDTI EAINAYIDNP DIEMDELIDL IKAPDFPTGG IIYGYSGVRE AYETGRGRIV
MRGKSEIEVA PNGREKLIIT EIPYLVNKAE LIIKIADLVN EKRIDGIANV NDESDRKGMR
IVVDIKRDDM ASVVLNKLYK YTQLQSTFSV NNIALVKGRP RMLNLRDLIH YFVEHRHEVV
VRRTQYELDQ AEKKAHVLRG LIIAIDNLDA VISLIRGSKT PEEAREGLMT NFELDEIQAR
AILDMRLQKL TGLERDKLHE EYDELMKQIE HLKDILANEP LRMQIIKDEL AEIQSRYGDE
RKTEIIHSAE EFNPEDFYAD DEMVITISHM GYMKRTPLTE FRTQSRGGVG SRGSTTRDED
FLEHMFIATM HNTILLFTEK GKCFWLKVYE IPEGAKASKG RAIQNLLNIE PDDNVKAFIN
VKNLKDEEYI NNNYIILCTK KGVIKKTSLE AYSRPRQNGV NAITIRENDQ LLEARLTNGN
HEIMMAVRTG KAIRFPEDKV RAIGRTGAGV RGITLGGEND ELVGMVCVEN ESEDILVVSE
NGFGKRSKID DYRITNRGGK GVKTLNVTPK TGSLVAIKSA SNDDDLMIIT QTGVTIRVPV
EDIRMTGRAA QGVKLINLKD TDKIASVARV KASETEIEAS DDVLEADNES NDEVSE
//
