ID A0A1Y0G8L7_9PROT Unreviewed; 863 AA.
AC A0A1Y0G8L7;
DT 30-AUG-2017, integrated into UniProtKB/TrEMBL.
DT 30-AUG-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=CAP31_09935 {ECO:0000313|EMBL:ARU31969.1};
OS Sulfuriferula sp. AH1.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Sulfuricellaceae; Sulfuriferula.
OX NCBI_TaxID=1985873 {ECO:0000313|EMBL:ARU31969.1, ECO:0000313|Proteomes:UP000195558};
RN [1] {ECO:0000313|EMBL:ARU31969.1, ECO:0000313|Proteomes:UP000195558}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AH1 {ECO:0000313|EMBL:ARU31969.1,
RC ECO:0000313|Proteomes:UP000195558};
RA Jones D.S., Hua A.A., Roepke E.W., Bailey J.V.;
RT "The complete genome sequence of Sulfuriferula sp. str. AH1, a sulfur-
RT oxidizing autotroph isolated from weathered sulfide-bearing rock from the
RT Duluth Complex.";
RL Submitted (MAY-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; CP021138; ARU31969.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Y0G8L7; -.
DR KEGG; sulf:CAP31_09935; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000195558; 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:UP000195558};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 11..502
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT MOTIF 563..569
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 122
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 863 AA; 95987 MW; 49FD2FFF44EFEE02 CRC64;
MESFAKETLP VSLEEEMRRS YLDYAMSVIV GRALPDVRDG LKPVHRRVLF AMHELSNDWN
KAYKKSARIV GDVIGKYHPH GDTAVYDTIV RMAQDFSLRY PLVDGQGNFG SVDGDNAAAM
RYTEIRMSRI AHELLADLDK ETVDFGPNYD GSEHEPLILP AKIPNLLING SSGIAVGMAT
NIPPHNLTDV CDACLTLLQE PETDIEALID IVKAPDFPTA GIIYGLVGVR EGYRTGRGRV
VIRARTHFED LDKAGNRQSI IVDELPYQVN KANLLIKIGE LVREKRIEGI SDLRDESDKS
GMRVVIELKR GEVPEVVLNN LYKHTQMQDS FGMNMVALVD NQPRLLNLKQ MLDAFLRHRR
EVVTRRTVFE LKKARERGHI LEGLAVALSN VDDIIALIKA APTPAVAKEG LMGRTWRSQL
VEEMLSRAVA DANAFRPDGL AIEFGFSKDG YRLSDAQAQA ILELRLQRLT GLEQDKILSE
YKEVVAKIAD LLDILAKPER ITAIIVEEIG LIKQQFGDKR RSEIVVYAQD LSLEDLITPQ
DMVVTLSHGG YMKSQPLDDY RAQKRGGRGK QAAPTKDDDF IERLFIANSH DYILCFSNFG
RVYWVKVYEV PQGSRISRGK PIVNLLSLSE GEKINAILPV KEFVDNRYVF MATANGVVKK
TTLSEFGNPR RAGIIAVGLD EGDYLVGVAV TEGNHDIMLF SNGGKAVRFD ENDVRSMGRG
ARGVRGMKLG TDQKVISLLV AENEQQSVLT ATENGYGKRT NIAEYTRHGR GTQGMIAIQT
TKRNGRVVAA TLVEPDDEIM LITNGGVLIR TRVKEMREMG RATQGVTLIN LDDGQKLIGV
ERVLERDDDE EAPADSPNGQ LDI
//
