ID D4S3U3_9FIRM Unreviewed; 815 AA.
AC D4S3U3;
DT 15-JUN-2010, integrated into UniProtKB/TrEMBL.
DT 15-JUN-2010, sequence version 1.
DT 27-MAR-2024, entry version 77.
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:EFF67120.1};
GN ORFNames=HMPREF7545_0271 {ECO:0000313|EMBL:EFF67120.1};
OS Selenomonas noxia ATCC 43541.
OC Bacteria; Bacillota; Negativicutes; Selenomonadales; Selenomonadaceae;
OC Selenomonas.
OX NCBI_TaxID=585503 {ECO:0000313|EMBL:EFF67120.1, ECO:0000313|Proteomes:UP000003701};
RN [1] {ECO:0000313|EMBL:EFF67120.1, ECO:0000313|Proteomes:UP000003701}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43541 {ECO:0000313|EMBL:EFF67120.1,
RC ECO:0000313|Proteomes:UP000003701};
RA Qin X., Bachman B., Battles P., Bell A., Bess C., Bickham C., Chaboub L.,
RA Chen D., Coyle M., Deiros D.R., Dinh H., Forbes L., Fowler G.,
RA Francisco L., Fu Q., Gubbala S., Hale W., Han Y., Hemphill L.,
RA Highlander S.K., Hirani K., Hogues M., Jackson L., Jakkamsetti A.,
RA Javaid M., Jiang H., Korchina V., Kovar C., Lara F., Lee S., Mata R.,
RA Mathew T., Moen C., Morales K., Munidasa M., Nazareth L., Ngo R.,
RA Nguyen L., Okwuonu G., Ongeri F., Patil S., Petrosino J., Pham C., Pham P.,
RA Pu L.-L., Puazo M., Raj R., Reid J., Rouhana J., Saada N., Shang Y.,
RA Simmons D., Thornton R., Warren J., Weissenberger G., Zhang J., Zhang L.,
RA Zhou C., Zhu D., Muzny D., Worley K., Gibbs R.;
RL Submitted (JAN-2010) 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:EFF67120.1}.
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DR EMBL; ACKT01000006; EFF67120.1; -; Genomic_DNA.
DR RefSeq; WP_006695267.1; NZ_GG749281.1.
DR AlphaFoldDB; D4S3U3; -.
DR eggNOG; COG0188; Bacteria.
DR HOGENOM; CLU_002977_6_1_9; -.
DR InParanoid; D4S3U3; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000003701; 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};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 13..466
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT MOTIF 527..533
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 124
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 815 AA; 90918 MW; 8BF172B263748D71 CRC64;
MDLDFGQGRV VPVNLEHEMK NSYIDYAMSV IVARALPDVR DGLKPVHRRI LYAMQGSGMT
SSKPYKKSAR IVGEVLGKYH PHGDSSVYDA IVRMAQDFSM RYMLADGHGN FGSVDGDSAA
AMRYTEVRMS KIAELMLRDI DKETVDFVDN YDGSEKEPSV LPAKFPQLLV NGTAGIAVGM
ATNIPPHNMV EVINGTLMLI DNPETTIEEL MGVIKGPDFP TAGLILGTEE IRKAYTTGRG
VIKMRARAHI ETMSSGKPRI LVTELPYQVN KARLIEKIAE LVRDKQIDGI TDLRDESDRS
GMRIVIELRR DSAPNVILNQ LYKHTQLQDS FGVIMLALVD GQPVIMNLKQ ILGHYISHQE
NVITRRTQYE LAKAEARAHI LEGLTIALDH LDAVITTIRE SRTADIARTA LMDGFKLTEK
QAQAILDLRL QRLTGLEREK IEEEYQEVLR MIEELKGILA DRMKVLAIIK DELIEVRDKY
GDERRTEITF DASEMDITDL IAEEDVVVTL TMSNYIKRIP LDTYRRQRRG GVGVKGMGTK
ETDIVSDLLI TTTHHDILFF TNRGRVFVLK AYEIPESGRQ AKGTAIINLL AVEADERITA
VIQVREFKPD RFLFLGTKRG VVKKTPLAEF ANIRKSGLKA VNLDEEDELI GVKFTDGENR
IMLGTRLGKA IAFPESGVRS MGRVTRGVRG IMLADGDEVV AMDILKSDSE VLTVTEGGYG
KRTAAGEYRT QTRGGKGLIN MKVTEKTGPV VGIRVVREDQ ELMLITTEGI VIRTSVNEIS
RISRNTQGVR LMTIAENDRV ASMATMNRIV DTPSE
//
