ID A0A3N1Y0D4_9GAMM Unreviewed; 850 AA.
AC A0A3N1Y0D4;
DT 13-FEB-2019, integrated into UniProtKB/TrEMBL.
DT 13-FEB-2019, sequence version 1.
DT 27-MAR-2024, entry version 20.
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=EDC57_1487 {ECO:0000313|EMBL:ROR32289.1};
OS Inmirania thermothiophila.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales;
OC Ectothiorhodospiraceae; Inmirania.
OX NCBI_TaxID=1750597 {ECO:0000313|EMBL:ROR32289.1, ECO:0000313|Proteomes:UP000276634};
RN [1] {ECO:0000313|EMBL:ROR32289.1, ECO:0000313|Proteomes:UP000276634}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 100275 {ECO:0000313|EMBL:ROR32289.1,
RC ECO:0000313|Proteomes:UP000276634};
RA Goeker M.;
RT "Genomic Encyclopedia of Type Strains, Phase IV (KMG-IV): sequencing the
RT most valuable type-strain genomes for metagenomic binning, comparative
RT biology and taxonomic classification.";
RL Submitted (NOV-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: 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:ROR32289.1}.
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DR EMBL; RJVI01000002; ROR32289.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A3N1Y0D4; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000276634; 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}; Reference proteome {ECO:0000313|Proteomes:UP000276634};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 11..498
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT MOTIF 559..565
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 122
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 850 AA; 93583 MW; 3D2C5913B20225E3 CRC64;
MSETAREIVP VDLEEEMQRS YLDYAMSVIV GRALPDVRDG LKPVHRRVLY AMSELGNDWN
KPYKKSARIV GDVIGKYHPH GDAAVYDTIV RMAQPFSMRY PLVDGQGNFG SIDGDAPAAM
RYTEVRMARI AHELLADIDK ETVDFVPNYD ESETEPSVLP SRVPNLLVNG AAGIAVGMAT
NIPPHNLGEI VDACVALIDD PEADVEALMA HVPGPDFPTA GIICGRRGIE EAYRTGRGRI
VVRARCHIEE ARSGREAIVV TEIPYQVNKA RLIERIAELV REKRIEGIAE LRDESDKEGL
RVVIEVKRGE NAEVLLNNLY HHTQLQTVFG VNMVALVDGQ PRLLNLRELL EAFLRHRREV
VTRRTVFELR KARERAHILE GLAVALANID EVIALIKASP SPAEAKAALL ARSWAPGVVT
ALLARAGAEL TRPADLEDGL GLGADGYRLS EAQAQAILDL RLHRLTGLEQ EKIVDEYKGL
IDTIRDLLAI LEDPDRLMAV IREELLELKA RYGDARRSEI VADHQELDIE DLIAPEDVVV
TVSHLGYAKI QPLDEYRAQR RGGRGRAATR VKEEDFVQRL FVANTHDTLL CFSNRGRMYW
LKVYQIPAGG RQSRGRPLVN LLPLEAGERI HAVLPVRGFD EGRYVLMATA AGLVKKTPLE
AFSRPRSAGI IAIGLREGDR LVDVALTDGD REVLLVSDAG KAIRFHESEV RPMGRGASGV
IGLRLGEGEQ VVALVIVGPG TVLTATERGY GKRTPAEDYP RKGRGGKGVI SIRTEGRNGR
VVGAALVQDE DEVMLISDRG TLVRTRVAEI PVLGRNTQGV RLIQLGEGER LVEIEPVAEN
GNSEDEEDGS
//
