ID A5HXQ3_CLOBH Unreviewed; 836 AA.
AC A5HXQ3;
DT 26-JUN-2007, integrated into UniProtKB/TrEMBL.
DT 26-JUN-2007, sequence version 1.
DT 27-MAR-2024, entry version 105.
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:CAL81561.1};
GN OrderedLocusNames=CBO0007 {ECO:0000313|EMBL:CAL81561.1};
OS Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=441771 {ECO:0000313|EMBL:CAL81561.1, ECO:0000313|Proteomes:UP000001986};
RN [1] {ECO:0000313|EMBL:CAL81561.1, ECO:0000313|Proteomes:UP000001986}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Hall / ATCC 3502 / NCTC 13319 / Type A [Sanger]
RC {ECO:0000313|Proteomes:UP000001986};
RX PubMed=17519437; DOI=10.1101/gr.6282807;
RA Sebaihia M., Peck M.W., Minton N.P., Thomson N.R., Holden M.T.G.,
RA Mitchell W.J., Carter A.T., Bentley S.D., Mason D.R., Crossman L.,
RA Paul C.J., Ivens A., Wells-Bennik M.H.J., Davis I.J., Cerdeno-Tarraga A.M.,
RA Churcher C., Quail M.A., Chillingworth T., Feltwell T., Fraser A.,
RA Goodhead I., Hance Z., Jagels K., Larke N., Maddison M., Moule S.,
RA Mungall K., Norbertczak H., Rabbinowitsch E., Sanders M., Simmonds M.,
RA White B., Whithead S., Parkhill J.;
RT "Genome sequence of a proteolytic (Group I) Clostridium botulinum strain
RT Hall A and comparative analysis of the clostridial genomes.";
RL Genome Res. 17:1082-1092(2007).
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; AM412317; CAL81561.1; -; Genomic_DNA.
DR RefSeq; YP_001252559.1; NC_009495.1.
DR AlphaFoldDB; A5HXQ3; -.
DR SMR; A5HXQ3; -.
DR GeneID; 5184262; -.
DR KEGG; cbo:CBO0007; -.
DR PATRIC; fig|413999.7.peg.7; -.
DR HOGENOM; CLU_002977_6_1_9; -.
DR Proteomes; UP000001986; Chromosome.
DR GO; GO:0005694; C:chromosome; IEA:InterPro.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0009330; C:DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) complex; IBA:GO_Central.
DR GO; GO:0005524; F:ATP binding; IBA:GO_Central.
DR GO; GO:0003677; F:DNA binding; IBA:GO_Central.
DR GO; GO:0034335; F:DNA negative supercoiling activity; IEA:UniProt.
DR GO; GO:0006265; P:DNA topological change; IBA:GO_Central.
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:UP000001986};
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 COILED 434..475
FT /evidence="ECO:0000256|SAM:Coils"
FT COILED 808..835
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 523..529
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 121
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 836 AA; 94527 MW; 6DE261D81E5BC9C7 CRC64;
MLNEGKILPV DVSKEMKKCY IDYAMSVIAG RALPDVRDGL KPVHRRIIYS MQGLGLAPEK
GYRKCARIVG DVLGKYHPHG DTAVYEALVR MAQNFSIRYT LVDGHGNFGS VDGDGAAAMR
YTEAKMSKIS MELIKDINKN TVDFIPNFDG EEEEPSVLPS RFPNLLVNGS SGIAVGMATN
IPPHNLTEVI DGIIMLIENE DVNILDLMTK IKGPDFPTSG LIVGTRGIRE AYETGRGKVI
IRAKAEIEEE KGKNKIIVTE IPYQVNKARL IENMANLVKD KKINGISDLR DESDRDGMRI
VIELKRDANP NIVLNQLYKH TKLQDTFGII MLALVNNQPQ ILNLKEILVN YVEFQKEVIR
RRTRFDLDKA LARAHILEGL RIALDHIDEV IKLIRASKNT AEAKEGLMNN FNLSEKQAQA
ILDMKLQRLT GLEREKIEEE YKELMEKISY FREILDKEEL VLSIIKEELI EIKNKYGDER
KTEIVKGEHD IDIEDLIEDK KVIITLTHGG YIKRLDMDTY SSQKRGGKGI QATSTKQDDF
IENMFVTSTH STILFFTNRG KVYKLKAYEI PEAGRTAKGT NIVNIIPIEN NEKIQTVIGL
KDIDDMKHFV MCTRNGIIKK TEIKKYSSIR KGGLNAINLR EDDELIDVKM TKGNNEIIIV
TQNGYCIRFN EEDVRPMGRV ATGVKGITLR EDDKAVSMEV VLEDEALLSI SENGFGKRTD
IEEYPIHRRG GKGVITYKIT DKTGPIVGAR FIKEDDELML VNSGDVAIRI NVSEISKTSR
NAMGVKLMRT SEEEKIVAIA KIKSEDIIEE EILNEENLNE ENLNEENLNE ENLNEE
//
