ID A0A347UGN0_9RHOB Unreviewed; 909 AA.
AC A0A347UGN0;
DT 07-NOV-2018, integrated into UniProtKB/TrEMBL.
DT 07-NOV-2018, sequence version 1.
DT 27-MAR-2024, entry version 22.
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=BAR1_08720 {ECO:0000313|EMBL:AXX98008.1};
OS Profundibacter amoris.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Profundibacter.
OX NCBI_TaxID=2171755 {ECO:0000313|EMBL:AXX98008.1, ECO:0000313|Proteomes:UP000261704};
RN [1] {ECO:0000313|EMBL:AXX98008.1, ECO:0000313|Proteomes:UP000261704}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BAR1 {ECO:0000313|EMBL:AXX98008.1,
RC ECO:0000313|Proteomes:UP000261704};
RA Le Moine Bauer S., Sjoeberg A.G., L'Haridon S., Stokke R., Roalkvam I.,
RA Steen I.H., Dahle H.;
RT "Profundibacter amoris BAR1 gen. nov., sp. nov., a new member of the
RT Roseobacter clade isolated at Lokis Castle Vent Field on the Arctic Mid-
RT Oceanic Ridge.";
RL Submitted (SEP-2018) 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; CP032125; AXX98008.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A347UGN0; -.
DR KEGG; pamo:BAR1_08720; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000261704; 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:UP000261704};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 26..505
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT REGION 1..22
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 566..572
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 137
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 909 AA; 100514 MW; 4ABD59123B171BDC CRC64;
MNDTPETPEN EEENQTPAYV YDGPSISITS EMKTSYLDYA MSVIVSRAIP DLRDGLKPVH
RRILYAMYEG GNTADKPYRK SARAVGDVMG KYHPHGDSAI YDALVRMAQD FSMSLPLLDG
QGNFGSMDGD NAAAMRYTEV RLDKPSAFLT ADIEKDTVDF QDNYDGKDQE PTVLPARYPN
MLVNGAGGIA VGMATNIPPH NLGEVIEATL ALIENPDLTT EELIEYVPGP DFPTGGIMLG
RSGARKAYLE GRGSVIIRAK TRTEEIRKDR YAIVIDEIPY QVNKASMIEK IAEQVREKRI
EGVSHVQDES DRNGVRVVVE LKRDATSEVV LNQLFRFTPM QTSFGCNMLA LNGGRPETLT
LRRFLTLFIT FREEVVARRT AYELRKARER SHILCGLAVA VSNVDEIVAT IRSSADPAEA
REKLMTRRWP AGDILEYIAL IDDPTHKAND DGTYNLSETQ ARAILELRLQ RLTAMGVKEV
TDELQTLAAA IREYLDILRS RDRIMAIIAD ELREVKEKFA VDRRTTIVDW SGDMEDEDLI
EKEDMVVTVT SGGYIKRTPL ADFRAQKRGG KGLAGMQTKE EDVITNLFVA NTHTQLLFFT
TEGMVYKLKT WRLPQGGRTA KGKAIVNILP IPAGVSVAAI MPVDADEKDW GDLQIFFATD
AGDVRRNALS DFTNVRANGK IAMKLPEGVE LVNARICTED DDVMLFTAGG RAIRFPTTAV
RVFKGRDSTG VRGIRLKDGE KVVSMSIIRH FEASSEERIA YLKMRRALAG ADDTEVETEE
EGEGAITQER FEEMQAIENL ILTITSGGSG KLSSSHDYPV RGRGGMGVAA MDKAMRGGDL
VASFAVEMED QIMLATSKGQ SIRCPVNGIS FRSRSAGGVK VFDTAKGEVV VSVAWIAERD
EDDTEEAEE
//
