ID F2JXC4_MARM1 Unreviewed; 881 AA.
AC F2JXC4;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 74.
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=Marme_1463 {ECO:0000313|EMBL:ADZ90730.1};
OS Marinomonas mediterranea (strain ATCC 700492 / JCM 21426 / NBRC 103028 /
OS MMB-1).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Oceanospirillaceae; Marinomonas.
OX NCBI_TaxID=717774 {ECO:0000313|EMBL:ADZ90730.1, ECO:0000313|Proteomes:UP000001062};
RN [1] {ECO:0000313|EMBL:ADZ90730.1, ECO:0000313|Proteomes:UP000001062}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700492 / JCM 21426 / NBRC 103028 / MMB-1
RC {ECO:0000313|Proteomes:UP000001062};
RX PubMed=22675599; DOI=10.4056/sigs.2545743;
RA Lucas-Elio P., Goodwin L., Woyke T., Pitluck S., Nolan M., Kyrpides N.C.,
RA Detter J.C., Copeland A., Teshima H., Bruce D., Detter C., Tapia R.,
RA Han S., Land M.L., Ivanova N., Mikhailova N., Johnston A.W.,
RA Sanchez-Amat A.;
RT "Complete genome sequence of the melanogenic marine bacterium Marinomonas
RT mediterranea type strain (MMB-1(T)).";
RL Stand. Genomic Sci. 6:63-73(2012).
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; CP002583; ADZ90730.1; -; Genomic_DNA.
DR RefSeq; WP_013660635.1; NZ_CP047696.1.
DR AlphaFoldDB; F2JXC4; -.
DR STRING; 717774.Marme_1463; -.
DR KEGG; mme:Marme_1463; -.
DR PATRIC; fig|717774.3.peg.1518; -.
DR eggNOG; COG0188; Bacteria.
DR HOGENOM; CLU_002977_6_1_6; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000001062; 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:UP000001062};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 11..499
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 839..881
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 560..566
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT COMPBIAS 841..855
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 856..872
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 122
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 881 AA; 97727 MW; 09027E3FF3F01270 CRC64;
MGELAKEIIP VSIENELKGS YLDYAMSVIV GRALPDVRDG LKPVHRRVLY AMNELKNDWN
KPYKKSARIV GDVIGKYHPH GDSAVYETIV RMAQPFSMRY TLVDGQGNFG SVDGDSAAAM
RYTEIRMDKI SHHLLMDLEK ETVDFVPNYD ESETMPEVLP ARIPGLLVNG SAGIAVGMAT
NIPPHNLTEV INGCLALIDR PEIEIDELME FIPGPDFPTG AFINGRAGIV EAYKTGRGRI
YMRARHHVED MEKGNRQAIV FTEIPYQLNK AKVIEKIAEL VKEKKLEGIS ELRDESDKDG
MRIVIELRRG ENPDVVVNNI FTQTQLQSVF GINMVALVDG RPELLNLKQI LECFVRHRRE
VVTRRTIFEL RKARERGHIL EGLAVALANI DRVIELIRTS PSSAEAREKL IAESWQPGDV
MAMLERAGAD ACRPDDLDPQ FGFNNGAYRL SPDQAQAILD LRLHRLTGLE HEKLLSEYKD
LIAVIAELLE ILGNPTRLME VICEELEAVR DQFGDERLTE ILTSRQDLTI ADLIDEAPMV
VTISDTGYAK SQPLEEYKAQ RRGGRGKSSA TMKDEDHISH LLVTSSHDTV MLFSNFGKVY
WLRVFEIPVA SRTAKGRPIV NLLPLAEGEH ISALLPLNDE MEDSYIFMAT ANGTVKKTAV
EYFARPRSTG LIALSLDEND ELVGVAQTSG ENDIMLVSSS GKTIRFKESD VRAMGRTAAG
VRGIRLADEY KVVSLIVPQE GCSVLFACEN GFGKRTLTED FPVYGRGGQG VIGIQVSERN
GPVVGATQVE DTDEIMLISD QGTLVRTRAS EVSCQGRNTQ GVTLIRLMND EHLVGVERVV
DEDDDAGEDA ESEERGEEQA TTPDAPEAEK TDEAPDSEGE E
//
