ID A0A142EP02_9BACT Unreviewed; 844 AA.
AC A0A142EP02;
DT 08-JUN-2016, integrated into UniProtKB/TrEMBL.
DT 08-JUN-2016, sequence version 1.
DT 27-MAR-2024, entry version 40.
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=AO498_10495 {ECO:0000313|EMBL:AMQ56857.1};
OS Algoriphagus sanaruensis.
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Cyclobacteriaceae;
OC Algoriphagus.
OX NCBI_TaxID=1727163 {ECO:0000313|EMBL:AMQ56857.1, ECO:0000313|Proteomes:UP000073816};
RN [1] {ECO:0000313|Proteomes:UP000073816}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=M8-2 {ECO:0000313|Proteomes:UP000073816};
RA Shintani M.;
RT "Complete sequence of Algoriphagus sp. M8-2.";
RL Submitted (SEP-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AMQ56857.1, ECO:0000313|Proteomes:UP000073816}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=M8-2 {ECO:0000313|EMBL:AMQ56857.1,
RC ECO:0000313|Proteomes:UP000073816};
RX PubMed=27174266;
RA Muraguchi Y., Kushimoto K., Ohtsubo Y., Suzuki T., Dohra H., Kimbara K.,
RA Shintani M.;
RT "Complete Genome Sequence of Algoriphagus sp. Strain M8-2, Isolated from a
RT Brackish Lake.";
RL Genome Announc. 4:0-0(2016).
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}.
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DR EMBL; CP012836; AMQ56857.1; -; Genomic_DNA.
DR RefSeq; WP_067547078.1; NZ_CP012836.1.
DR AlphaFoldDB; A0A142EP02; -.
DR STRING; 1727163.AO498_10495; -.
DR KEGG; alm:AO498_10495; -.
DR PATRIC; fig|1727163.4.peg.2190; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000073816; 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}; 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}; Reference proteome {ECO:0000313|Proteomes:UP000073816};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 12..466
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 809..844
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 438..479
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 527..533
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT COMPBIAS 825..844
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 123
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 844 AA; 94869 MW; 86163AA56B2BF30D CRC64;
MAQGENEHII PINIEEEMRG AYIDYSMSVI VSRALPDVRD GLKPVHRRIL YGMQELGVLH
NKPYKKSARI VGEVLGKYHP HGDSAVYDTM VRMAQDWSLR YTLVDGQGNF GSVDGDNPAA
MRYTEARLKR IAEELLVDIN KETVDFQFNF DDSLKEPTVL PAKVPALLLN GASGIAVGMA
TNMAPHNLRE VIDGIIAYID NREITVAELM KHITAPDFPT GGIIYGYNGV KAAFETGRGR
IVIRGKANIE TKDNGNREMI VITEIPYQVN KASMVEKTAQ LINEKKIEGI SAIRDESDRS
GMRVVYELKR DAVANVVLNN LYKQTALQTS FSVNNVALVK GRPLTLNLKD LIVHYVSHRH
EVVVRRTEYE LKEAEKRAHI LEGYLIALDH LDEVISLIRN SADPETARNG LMDRFGLSEI
QARAILDMRL QRLTGMERDK IVQEYKEIMA LIEELKEILA NEDKRMEIIK AELMEMKDRY
GDDRRTEIEH DAEDFSYEDM IPNEEVVITV SHQGYVKRTA LTEYRTQGRG GVGSRGVSTK
EDDWTEYIFT ASTHNYLLIF TDKGKLFWLK TYAIPEGSKT AKGRPIQNLI NIESDDKIRS
IIQVESLDDQ DYINNHFLVM VTKQGVIKKT TLEQYSRPRS NGIIALNFRE DDQLVNVSMT
NGNQHIVIAA KSGRAIHFHE SAVRPMGRTA TGVKAITLND QNDYVIGMVC ASEEKATLLV
VSEKGYGKRS DLEEYRITNR GGKGVKAMNV TEKTGSLVAI KQVVDTDDLM IINKSGITIR
ISMDELRVMG RATQGVRLIR VGEGDEISSV EKISREEVET PDVSGDDQPE NSNGESTNTQ
EITE
//
