ID A0A0D0F3A8_9FLAO Unreviewed; 881 AA.
AC A0A0D0F3A8;
DT 29-APR-2015, integrated into UniProtKB/TrEMBL.
DT 29-APR-2015, sequence version 1.
DT 27-MAR-2024, entry version 52.
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=IW18_11660 {ECO:0000313|EMBL:KIO52587.1};
OS Flavobacterium hibernum.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Flavobacteriaceae; Flavobacterium.
OX NCBI_TaxID=37752 {ECO:0000313|EMBL:KIO52587.1, ECO:0000313|Proteomes:UP000032061};
RN [1] {ECO:0000313|EMBL:KIO52587.1, ECO:0000313|Proteomes:UP000032061}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12611 {ECO:0000313|EMBL:KIO52587.1,
RC ECO:0000313|Proteomes:UP000032061};
RA Stropko S.J., Pipes S.E., Newman J.D.;
RT "Genome of Flavobacterium hibernum DSM 12611.";
RL Submitted (JAN-2015) 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:KIO52587.1}.
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DR EMBL; JPRK01000009; KIO52587.1; -; Genomic_DNA.
DR RefSeq; WP_041517893.1; NZ_UGGR01000006.1.
DR AlphaFoldDB; A0A0D0F3A8; -.
DR STRING; 37752.IW18_11660; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000032061; 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}; Coiled coil {ECO:0000256|SAM:Coils};
KW 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..462
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 845..881
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 434..475
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 523..529
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT COMPBIAS 850..881
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 121
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 881 AA; 99224 MW; D7D6BB015279976C CRC64;
MSDGEKLIPI NIEDEMKSAY IDYSMSVIVS RALPDVRDGL KPVHRRVLYG MYDLGVTSRS
AHKKSARIVG EVLGKYHPHG DTSVYDAMVR MAQEWSMRYL LVDGQGNFGS VDGDSPAAMR
YTEARMRKIS EDIMADIEKE TVDFQLNFDD TLYEPKVMPT RVPTLLVNGA TGIAVGMATN
MPPHNLTEVI NGTLAYLDNN DIEIDELMTH IKAPDFPTGG VIYGYEGVRE AFKTGRGRIV
MRAKVGFEEV DGRECIIVTE IPYQVNKAEM IKRTADLVND KKIEGIANIR DESDRNGMRI
VYILKRDATP NVVLNTLYKY TSLQSSFSVN NIALVKGRPQ MLNLKDMIHY FIEHRHDVVV
RRTQFELRKA EERAHILEGL IIASDNIDEV IAIIRGSKNT EEAREKLIER FKLSDIQARA
IVEMRLRQLT GLEQDKLRAE FEELMKLIEH LKALLADVDL RTKLIKEELE EIREKYGDAR
RSQIEYSGGD VSIEDLIADE NVVITISHAG YIKRTNLTEY KTQNRGGVGQ KSAGTRDQDF
LEHMFVATNH QYMMFFTQKG KCFWMRVYEI PEGSKTAKGR AIQNLVNIES DDKVKAFICT
QDLKDKDYIN SHNLVMVTKQ GQVKKTSLEK YSKPRVNGVA AITIKEGDEL LEAKLTNGES
QIILAVKSGK LVRFEETKTR PMGRTASGVR GITLKDETDE VIGMVTVDKE NVNDTQILVV
TENGYGKRTK LVDDDGEDVY RITNRGGKGV KTLNITEKTG KLISISNVTD ADDLMIINKS
GLTIRMAIED LRVMGRATQG VRLINLKGKD SIAAVTKVMK DDVAEVVVDE DGNVIESVIE
RVKPDLEVLE DDGTGDDDED DDTDEEVEDE DDSEEEEESE E
//