ID B8IV01_METNO Unreviewed; 911 AA.
AC B8IV01;
DT 03-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 03-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 90.
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 OrderedLocusNames=Mnod_4181 {ECO:0000313|EMBL:ACL59059.1};
OS Methylobacterium nodulans (strain LMG 21967 / CNCM I-2342 / ORS 2060).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Methylobacteriaceae; Methylobacterium.
OX NCBI_TaxID=460265 {ECO:0000313|EMBL:ACL59059.1, ECO:0000313|Proteomes:UP000008207};
RN [1] {ECO:0000313|EMBL:ACL59059.1, ECO:0000313|Proteomes:UP000008207}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LMG 21967 / CNCM I-2342 / ORS 2060
RC {ECO:0000313|Proteomes:UP000008207};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Sims D., Brettin T., Detter J.C., Han C.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Ivanova N., Marx C.J.,
RA Richardson P.;
RT "Complete sequence of chromosome of Methylobacterium nodulans ORS 2060.";
RL Submitted (JAN-2009) 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}.
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DR EMBL; CP001349; ACL59059.1; -; Genomic_DNA.
DR AlphaFoldDB; B8IV01; -.
DR STRING; 460265.Mnod_4181; -.
DR KEGG; mno:Mnod_4181; -.
DR eggNOG; COG0188; Bacteria.
DR HOGENOM; CLU_002977_6_1_5; -.
DR Proteomes; UP000008207; 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}; 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:UP000008207};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 22..501
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 1..23
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 562..568
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 133
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 911 AA; 100938 MW; 1E04481BA1BCDB69 CRC64;
MTLAEKNDET GAPPPASDIK PVSITDEMRR SYLDYAMSVI VSRALPDARD GLKPVHRRIL
YSMYENGYLP DRKYVKSARI VGDVMGQYHP HGDQSIYDAL VRMAQDFAMR IMLVDGQGNF
GSIDGDPPAA MRYTESRLAK PAMALLEDID KNTVDFNPNY DESKDEPAVL PARFPNLLVN
GAGGIAVGMA TNIPPHNLGE VIDGCVALID DPSLTIEALN EIIPGPDFPT GGLILGRAGT
RAAYMTGRGS VVMRAKSHVE EIRKEREALV FTEIPYQVNK ASLVEKIADL VREKRIEGVA
DLRDESDRDG MRIVVELKRD AMADVVLNQL YRYTPLQTSF GCNMVALNGG RPELLNLKDL
IQAFIDFREE VVSRRTKFLL RKARERAHVL CGLAIAVANI DEVIRLIRTS PDPNSAREAL
MSRDWPAADI APLIALVDDP RHRVADDGTY RLSEAQARAI LDLRLQRLTA LGRDEVGDEL
KQLADEIADY LDILRSRARI LGIVKAELAE VRAEYATPRK TEIQDWDSNV EDEDLIQRED
MVVTVSHAGY IKRVPLSTYR AQRRGGKGRS GMTTRDEDFV TRLFVANTHT PVLFFSSQGQ
AYKEKVWRLP LAAPNARGKA LVNILPLDQA GERITTIMPL PEDEASWETL DVMFATASGN
VRRNKLSDFV QVNRNGKIAM KLDEGDHIVH VEICTEADDV LLTTAAGQCI RFPVTDVRVF
KGRDSTGVRG INLGKDDRVI SMTILRHFEA TPEERQAYLR RANADRRATG EAVDLPTAPE
ADGEETTASI DLGQERYIDM GAAEQFVLTL SERGFGKRTS SFEYRISGRG GKGIKAMEVN
ARNGHLVASF PVEPSDQIML VTNGGQLIRV PVDDIRIVGR ASQGVTVFNT AKDERVVSVE
HIEGEEEGEG N
//
