ID A0A1B9Y3I3_9FLAO Unreviewed; 833 AA.
AC A0A1B9Y3I3;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 36.
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=BA195_06595 {ECO:0000313|EMBL:OCK44342.1};
OS Tenacibaculum soleae.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Flavobacteriaceae; Tenacibaculum.
OX NCBI_TaxID=447689 {ECO:0000313|EMBL:OCK44342.1, ECO:0000313|Proteomes:UP000093186};
RN [1] {ECO:0000313|EMBL:OCK44342.1, ECO:0000313|Proteomes:UP000093186}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UCD-KL19 {ECO:0000313|EMBL:OCK44342.1,
RC ECO:0000313|Proteomes:UP000093186};
RA Eisen J.A., Coil D.A., Lujan K.M.;
RT "Draft Genome Sequence of Tenacibaculum soleae UCD-KL19.";
RL Submitted (JUN-2016) 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:OCK44342.1}.
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DR EMBL; MAKX01000001; OCK44342.1; -; Genomic_DNA.
DR RefSeq; WP_068703619.1; NZ_MAKX01000001.1.
DR AlphaFoldDB; A0A1B9Y3I3; -.
DR STRING; 447689.BA195_06595; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000093186; 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:UP000093186};
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 812..833
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 523..529
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT COMPBIAS 818..833
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 833 AA; 94106 MW; D4AC228519AC02E8 CRC64;
MADGEKLIPI NIEEQMKSAY IDYSMSVIVS RALPDVRDGL KPVHRRVLFG MHELGIKATG
SYKKSARIVG EVLGKYHPHG DTSVYDSMVR MAQNWSVRYM MVDGQGNFGS VDGDSPAAMR
YTEVRMQKIS EDMLADIEKD TVDHRLNFDD TLQEPTVLPT RIPNLLVNGA SGIAVGMATN
MAPHNLTEVV NGTIAYIENR DIEIDELMQH IKAPDFPTGG TIYGYDGVKD AFHTGRGRIV
MRAKATIEEV KGRECIIVTE IPYQVNKAEM IKKTAELVND KKLEGISNIR DESDRNGMRI
VYILKRDAIP NIVLNKLFKY TQLQTSFSVN NIALVNGRPE QLNLKQLIHH FVEHRHEVVV
RRTEFELKKA EARAHILEGL IIASDNIDEV IKIIRGSKNG DEAREKLIER FELTEIQAKA
IVEMRLRQLT GLEQDKLRAE FDEIMLTIAD LKDILANEPR RYQIITDELI HVRDKYGDER
RSEIHYAGGD MRIEDMIPNS KVVVTISHAG YVKRTNLDEY KVQNRGGRGQ KGATTRNEDF
LEHLFIGTNH QYMMFFTQKG KVFWMRVYEI PEGGKNTKGR AMQNLINIEQ DDKVKAFLVT
QDLKDEEYIK NHFVIMATKK GKVKKTPLEQ YSRPRTNGIN AITIKDGDEL LEAKLTTGDS
QVMLALKSGK SIRFEEAKTR PMGRTASGVR GITLQHDKDE VVGMVAVNDM DSNILVVSEK
GYGKRSKLED YRVTNRGGKG VKTLNISEKT GELVAIKNVD DSNDLMIINK SGLTIRMAVE
DLRVMGRATQ GVRLINIKGS DSIAAVAKVM HEKETDEDGT EIENEDITNQ EQE
//
