ID A0A248JW30_9PROT Unreviewed; 932 AA.
AC A0A248JW30;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 29.
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=Y958_17975 {ECO:0000313|EMBL:ASG22789.1};
OS Nitrospirillum amazonense CBAmc.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Azospirillaceae; Nitrospirillum.
OX NCBI_TaxID=1441467 {ECO:0000313|EMBL:ASG22789.1, ECO:0000313|Proteomes:UP000197153};
RN [1] {ECO:0000313|EMBL:ASG22789.1, ECO:0000313|Proteomes:UP000197153}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CBAmC {ECO:0000313|EMBL:ASG22789.1,
RC ECO:0000313|Proteomes:UP000197153};
RA Schwab S., dos Santos Teixeira K.R., Simoes Araujo J.L., Soares Vidal M.,
RA Borges de Freitas H.R., Rivello Crivelaro A.L., Bueno de Camargo Nunes A.,
RA dos Santos C.M., Palmeira da Silva Rosa D., da Silva Padilha D.,
RA da Silva E., Araujo Terra L., Soares Mendes V., Farinelli L.,
RA Magalhaes Cruz L., Baldani J.I.;
RT "Complete genome sequence of Nitrospirillum amazonense strain CBAmC, an
RT endophytic nitrogen-fixing and plant growth-promoting bacterium, isolated
RT from sugarcane.";
RL Submitted (JUN-2017) 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; CP022111; ASG22789.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A248JW30; -.
DR KEGG; nao:Y958_17975; -.
DR Proteomes; UP000197153; Chromosome 2.
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:UP000197153};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 19..498
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 896..932
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 559..565
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 932 AA; 102341 MW; 79ACF414565B0CE0 CRC64;
MVTTPTPPAA PPASDITPIA IEEEMRSSYL DYAMSVIVSR ALPDVRDGLK PVHRRILYAM
KESGYDSTKP YRKSAKAVGD VMGNYHPHGD SSIYEAMVRM AQDFSMRLPL IDGQGNFGSM
DGDRAAAMRY TEARLAKSAE AMLDDIDKDT IDWQKNYDES KDEPTVLPSR FPNLLVNGAG
GIAVGMATNI PPHNLGEVID ACCAYVDNPD ITIPELMEIV PGPDFPTGAL ILGRAGIRSA
FETGRGSVVM RAKSEIEEIR KDRWAIVFTE IPYQVNKAKL IERIAEVVQE KLVEGISDVR
DESDRDGVRV VVELKRDAVA DVVMNQLFRH TPLQTSFGVN TLALNGGRPE LMNLKDIIAA
FVKFREQVIT RRTEFELGKA RERAHTLVGL GVAVANLDEM IALIRRAPDP QSAREEMVAR
EWPALDVAPL ITLIDEPGRG LSEAGTYRLS EAQAKAILEL RLHRLTGLER DKIGADLTAV
VEQIRHFLEI LSSRPLLLDI LRNELVEVKA RFDTPRRTKI EDLEFEADIE DLIQREDMVV
IVTQGGYIKR VPVSTYRAQA RGGKGRSGMQ LKAEDTVSDL FVANTHTPML LFTNRGMVYK
LKVWRLPLGQ PQTRGKALVN LLPLEEGEVI TTVMPMPEDE ASWGDLNVLF VTSHGNVRRN
KLSDFTNIRA NGLIAMKLEE EGELLIAART CGEADDVLLA TRLGRCIRFP VVDVRVFAGR
TSTGVRGIRL AEGDEVIGLS ILHHTEYTAE DRAAYLKQAS AERRQQGEEV EEAADVDPEV
TGDVGTLSSD VYAEMKAREE FLLTVSVQGF GKRTSAYEYR LTGRGGQGIW NMDMGARNKA
IAAVFPIAET DQVMMVSNGG QVIRMPVHDV RITARKSKGV TLFRLSTDEG VVSVARLADD
GTEDGGADDA TPGETGPVAG PAPDGSNEGT GG
//
