ID A0A318XPK5_9FIRM Unreviewed; 845 AA.
AC A0A318XPK5;
DT 10-OCT-2018, integrated into UniProtKB/TrEMBL.
DT 10-OCT-2018, sequence version 1.
DT 27-MAR-2024, entry version 22.
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=LY28_00803 {ECO:0000313|EMBL:PYG88985.1};
OS Ruminiclostridium sufflavum DSM 19573.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC Ruminiclostridium.
OX NCBI_TaxID=1121337 {ECO:0000313|EMBL:PYG88985.1, ECO:0000313|Proteomes:UP000248132};
RN [1] {ECO:0000313|EMBL:PYG88985.1, ECO:0000313|Proteomes:UP000248132}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19573 {ECO:0000313|EMBL:PYG88985.1,
RC ECO:0000313|Proteomes:UP000248132};
RA Kyrpides N.;
RT "Genomic Encyclopedia of Type Strains, Phase I: the one thousand microbial
RT genomes (KMG-I) project.";
RL Submitted (JUN-2018) 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:PYG88985.1}.
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DR EMBL; QKMR01000004; PYG88985.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A318XPK5; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000248132; 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:UP000248132};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 13..472
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 820..845
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 533..539
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 845 AA; 95060 MW; 368432DC1115ACE6 CRC64;
MADEIREQKI IPIDIEEEMK KSFIDYAMSV IIDRALPDVR DGLKPVHRRI LYTMYASGFT
PDKPYRKSVA TVGECLKNYH PHGDAAVYDS LVRMAQDFSL RHTLVDGHGN FGSRDGDCAA
AMRYTEAKLT KISMEMLADI NKDTVDFKPN FDDHEVEPVV LPSRFPCLLV NGSQGIAVGM
ATNIPPHNLG EVINGICAII DNPEITIDEL MKYIKGPDFP TAAKIIGKKG IRDAYRTGKG
RIVVRSEATI EELPGNKHRI IISEIPYMVN KARLIEKIAD LVKEKRIEGI SLLQDESGRE
EPVRIVVELK RDANPNVVLN QLYKNTQLQD TFSANMVAIV PTEDNLYEPR TLNLKEILDY
YIAHQIDVIR RRTKFELDKA EARAHILEGL KIALDNMDEV IRIIRASKTE AIAKEGLIQR
FGFSDKQAQA IVDMRLGRLT GLEREKIENE YNELLEKINY YKSVLANEVL VLGIIKDELS
VIKDKYADER RTKIEIDEDE IDIEDLIENE ESVITLTHFG YIKRLPADTY TSQRRGGKGI
IGLSTREEDF VKNLFVTSTH DFIMFFTSKG RVYRLKAYEI PESGRQAKGT AIVNLLQLDG
DERITTVIPI KEYKEGQYLV MATRNGLIKK TDIMEYGNIR KGGLAAVSLR ENDELIDVKL
TDGNQDIMIS TNNGMAIRFN ETDARPIGRV SQGVKGIEID EDDHVIGMEV CTENTTLLVV
TENGFGKRTE LDEYKVQNRG GKGVLTYRIT EKTGKSIGMM LVSDEDDIML ISSDGTIIRM
KVSEISILGR ATQGVTLMRM ADGIKVVSMA RMVNEDVDSE EADDLVRDNS DCSGLKDAAV
DTDEL
//
