ID A0A1G4WLL3_9MYCO Unreviewed; 834 AA.
AC A0A1G4WLL3;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
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=SAMN02799620_03761 {ECO:0000313|EMBL:SCX24727.1};
OS Mycolicibacterium fluoranthenivorans.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycolicibacterium.
OX NCBI_TaxID=258505 {ECO:0000313|EMBL:SCX24727.1, ECO:0000313|Proteomes:UP000199707};
RN [1] {ECO:0000313|Proteomes:UP000199707}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UNC267MFSha1.1M11 {ECO:0000313|Proteomes:UP000199707};
RA Varghese N., Submissions S.;
RL Submitted (OCT-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 topoisomerase GyrA/ParC subunit family.
CC {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- SIMILARITY: Belongs to the type II topoisomerase GyrA/ParC subunit
CC family. {ECO:0000256|ARBA:ARBA00008263}.
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DR EMBL; FMUB01000007; SCX24727.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G4WLL3; -.
DR STRING; 1502745.SAMN02799620_03761; -.
DR Proteomes; UP000199707; 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}; 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};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 19..477
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT COILED 449..476
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 538..544
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 130
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 834 AA; 92511 MW; 50A531A4695019D6 CRC64;
MTDTTLPPGD EAGDRIEPVD IQHEMQRSYI DYAMSVIVGR ALPEVRDGLK PVHRRVLYAM
FDSGFRPDRG HAKSARSVAE TMGNYHPHGD SSIYDTLVRM AQPWSLRYPL VDGQGNFGSP
GNDPAAAMRY TEARLTPLAM EMLREIDEET VDFIPNYDGR VQEPTVLPSR FPNLLANGSG
GIAVGMATNI PPHNLNELAE AVYWCLENHE ADEEATLAAC CERVKGPDFP THGLIVGSQG
INDTYTTGRG SIRMRGVVEI EEDSRGRTSI VITELPYQVN HDNFITSIAE QVRDAKLTGI
SNIEDQSSDR VGLRIVVELK RDAVAKVVLN NLYKHTQLQT SFGANMLSIV DGVPRTLRLD
QMIRYYVEHQ LDVIIRRTRY RLRKANERAH ILRGLVKALD ALDEVIALIR ASANADVARS
GLMELLDVDE IQAQAILDMQ LRRLAALERQ RIVDDLAKIE AEIADLEDIL AKPERQRAIV
RDELKEIVEK HGDERRTRII AADGDVTDED LIQREDVVVT ITETGYAKRT KTDLYRSQKR
GGKGVQGAGL KQDDIVNHFF VCSTHDWILF FTTQGRVYRA KAYDLPEASR TARGQHVANL
LAFQPEERIA QVIQIQSYED APYLVLATRN GLVKKSKLVD FDSNRSGGIV AVNLRDGDEL
VGAVLCSAED DLLLVSANGQ SIRFSATDEA LRPMGRATSG VQGMRFNEDD RLLSLNVVRE
GTYLLVATAG GYAKRTDIEE YTVQGRGGKG ILTIQYDRRR GSLVGALIVD DDTELYAITS
GGGVIRTAAR QVRKAGRQTK GVRLMNLGEG DTLIAVARNA EGPEEPEDDE TPDE
//