ID A0A385Z4V0_9PSED Unreviewed; 920 AA.
AC A0A385Z4V0;
DT 05-DEC-2018, integrated into UniProtKB/TrEMBL.
DT 05-DEC-2018, sequence version 1.
DT 24-JAN-2024, entry version 22.
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 ECO:0000313|EMBL:AYC33560.1};
GN ORFNames=D3880_14880 {ECO:0000313|EMBL:AYC33560.1};
OS Pseudomonas cavernae.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=2320867 {ECO:0000313|EMBL:AYC33560.1, ECO:0000313|Proteomes:UP000265560};
RN [1] {ECO:0000313|Proteomes:UP000265560}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K2W31S-8 {ECO:0000313|Proteomes:UP000265560};
RA Zhu H.;
RL Submitted (SEP-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 topoisomerase GyrA/ParC subunit family.
CC {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- SIMILARITY: Belongs to the type II topoisomerase GyrA/ParC subunit
CC family. {ECO:0000256|ARBA:ARBA00008263}.
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DR EMBL; CP032419; AYC33560.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A385Z4V0; -.
DR KEGG; pcav:D3880_14880; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000265560; Chromosome.
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:UP000265560};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 11..500
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 666..686
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 883..920
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 561..567
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT COMPBIAS 666..683
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 122
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 920 AA; 101795 MW; 7F24AE0C0E20E908 CRC64;
MGELAKEILP VNIEDELKQS YLDYAMSVIV GRALPDARDG LKPVHRRVLF AMSELGNDWN
KPYKKSARVV GDVIGKYHPH GDTAVYDTIV RMAQPFSLRY LLVDGQGNFG SVDGDNAAAM
RYTEVRMAKL AHELLADLDK ETVDWVPNYD GTEQIPAVMP TKIPNLLVNG SSGIAVGMAT
NIPPHNLREV IDGCLALIDN PELTVDELMQ YIPGPDFPTA GIINGRAGII EAYRTGRGRI
YMRARAEIED IDKVGGRQQI IVTELPYQLN KARLIEKIAE LVKEKKLEGI TELRDESDKD
GMRVVIELRR GEVGEVVLNN LYAQTQMQSV FGINVVALVD GQPRTLNLKD MLEVFVRHRR
EVVTRRTVYE LRKARERGHI LEGQAVALSN IDPVIELIKT SPTPAEAKER LIATAWESSA
VESMVERAGA EACRPEDLDP QFGLREGKYY LSPDQAQAIL ELRLHRLTGL EHEKLLTEYQ
EILTQIGELI RILTNPLRLM EVIREELEQV KADFGDDRRT EIVASQVDLT IADLITEEER
VVTISHGGYA KSQPLAAYQA QRRGGKGKSA TGVKDEDYIE HLLVANSHAT LLLFSSKGKV
YWLRTFEIPE ASRTARGRPM VNLLPLDEGE RITAMLQVDL EALRQQALEG EEQDDIEGVL
VEQDEVEDLA DDEDGDEAEG AEDKDETTGA YIFMATANGT VKKTPLVQFS KPRSSGLIAL
RLEEGDTLIA AAVTDGAREV MMFSDGGKVI RFKESKVRTM GRTARGVRGM RLAEGQHIIS
MLIPEQGAQI LTASERGYGK RTAMDEFPKR GRGGQGVIAM VSNERNGRLV GAIQVLDGEE
IMLISDQGTL VRTRVDEVSS LSRNTQGVTL IKLASDETLV GLERVQEPSE VEGDDLEGDE
SREAGEVAVE VVPEVPAGEE
//