ID F2LB24_BURGS Unreviewed; 1248 AA.
AC F2LB24;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 80.
DE RecName: Full=RecBCD enzyme subunit RecB {ECO:0000256|HAMAP-Rule:MF_01485};
DE EC=3.1.11.5 {ECO:0000256|HAMAP-Rule:MF_01485};
DE AltName: Full=Exonuclease V subunit RecB {ECO:0000256|HAMAP-Rule:MF_01485};
DE Short=ExoV subunit RecB {ECO:0000256|HAMAP-Rule:MF_01485};
DE AltName: Full=Helicase/nuclease RecBCD subunit RecB {ECO:0000256|HAMAP-Rule:MF_01485};
GN Name=recB {ECO:0000256|HAMAP-Rule:MF_01485};
GN OrderedLocusNames=bgla_1g11740 {ECO:0000313|EMBL:AEA59856.1};
OS Burkholderia gladioli (strain BSR3).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia.
OX NCBI_TaxID=999541 {ECO:0000313|EMBL:AEA59856.1, ECO:0000313|Proteomes:UP000008316};
RN [1] {ECO:0000313|EMBL:AEA59856.1, ECO:0000313|Proteomes:UP000008316}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BSR3 {ECO:0000313|EMBL:AEA59856.1,
RC ECO:0000313|Proteomes:UP000008316};
RX PubMed=21478339; DOI=10.1128/JB.00420-11;
RA Seo Y.S., Lim J., Choi B.S., Kim H., Goo E., Lee B., Lim J.S., Choi I.Y.,
RA Moon J.S., Kim J., Hwang I.;
RT "Complete genome sequence of Burkholderia gladioli BSR3.";
RL J. Bacteriol. 193:3149-3149(2011).
CC -!- FUNCTION: A helicase/nuclease that prepares dsDNA breaks (DSB) for
CC recombinational DNA repair. Binds to DSBs and unwinds DNA via a highly
CC rapid and processive ATP-dependent bidirectional helicase activity.
CC Unwinds dsDNA until it encounters a Chi (crossover hotspot instigator)
CC sequence from the 3' direction. Cuts ssDNA a few nucleotides 3' to the
CC Chi site. The properties and activities of the enzyme are changed at
CC Chi. The Chi-altered holoenzyme produces a long 3'-ssDNA overhang and
CC facilitates RecA-binding to the ssDNA for homologous DNA recombination
CC and repair. Holoenzyme degrades any linearized DNA that is unable to
CC undergo homologous recombination. In the holoenzyme this subunit
CC contributes ATPase, 3'-5' helicase, exonuclease activity and loads RecA
CC onto ssDNA. {ECO:0000256|HAMAP-Rule:MF_01485}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=5.6.2.4;
CC Evidence={ECO:0000256|ARBA:ARBA00034618};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Exonucleolytic cleavage (in the presence of ATP) in either
CC 5'- to 3'- or 3'- to 5'-direction to yield 5'-
CC phosphooligonucleotides.; EC=3.1.11.5; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01485};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01485};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01485};
CC -!- SUBUNIT: Heterotrimer of RecB, RecC and RecD. All subunits contribute
CC to DNA-binding. Interacts with RecA. {ECO:0000256|HAMAP-Rule:MF_01485}.
CC -!- DOMAIN: The C-terminal domain has nuclease activity and interacts with
CC RecD. It interacts with RecA, facilitating its loading onto ssDNA.
CC {ECO:0000256|HAMAP-Rule:MF_01485}.
CC -!- DOMAIN: The N-terminal DNA-binding domain is a ssDNA-dependent ATPase
CC and has ATP-dependent 3'-5' helicase function. This domain interacts
CC with RecC. {ECO:0000256|HAMAP-Rule:MF_01485}.
CC -!- SIMILARITY: Belongs to the helicase family. UvrD subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_01485}.
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DR EMBL; CP002599; AEA59856.1; -; Genomic_DNA.
DR RefSeq; WP_013697207.1; NC_015381.1.
DR AlphaFoldDB; F2LB24; -.
DR STRING; 999541.bgla_1g11740; -.
DR KEGG; bgd:bgla_1g11740; -.
DR eggNOG; COG1074; Bacteria.
DR HOGENOM; CLU_001114_6_1_4; -.
DR Proteomes; UP000008316; Chromosome 1.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003678; F:DNA helicase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008854; F:exodeoxyribonuclease V activity; IEA:UniProtKB-EC.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000724; P:double-strand break repair via homologous recombination; IEA:UniProtKB-UniRule.
DR CDD; cd22352; RecB_C-like; 1.
DR Gene3D; 3.90.320.10; -; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 2.
DR Gene3D; 1.10.3170.10; Recbcd, chain B, domain 2; 1.
DR HAMAP; MF_01485; RecB; 1.
DR InterPro; IPR014017; DNA_helicase_UvrD-like_C.
DR InterPro; IPR000212; DNA_helicase_UvrD/REP.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR011604; PDDEXK-like_dom_sf.
DR InterPro; IPR038726; PDDEXK_AddAB-type.
DR InterPro; IPR004586; RecB.
DR InterPro; IPR011335; Restrct_endonuc-II-like.
DR InterPro; IPR014016; UvrD-like_ATP-bd.
DR NCBIfam; TIGR00609; recB; 1.
DR PANTHER; PTHR11070:SF23; RECBCD ENZYME SUBUNIT RECB; 1.
DR PANTHER; PTHR11070; UVRD / RECB / PCRA DNA HELICASE FAMILY MEMBER; 1.
DR Pfam; PF12705; PDDEXK_1; 1.
DR Pfam; PF00580; UvrD-helicase; 1.
DR Pfam; PF13361; UvrD_C; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF52980; Restriction endonuclease-like; 1.
DR PROSITE; PS51198; UVRD_HELICASE_ATP_BIND; 1.
DR PROSITE; PS51217; UVRD_HELICASE_CTER; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW Exonuclease {ECO:0000256|ARBA:ARBA00022839, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW Helicase {ECO:0000256|ARBA:ARBA00022806, ECO:0000256|HAMAP-Rule:MF_01485};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01485};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01485};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01485};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_01485};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01485}.
FT DOMAIN 8..474
FT /note="UvrD-like helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51198"
FT DOMAIN 475..776
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51217"
FT REGION 1..900
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 947..1248
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 1147
FT /note="For nuclease activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 29..36
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00560"
FT BINDING 1021
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1134
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1147
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1248 AA; 135215 MW; 6FD662854F4D12CF CRC64;
MSAAMAASQA PQELDVFACA LDGVNQIEAS AGTGKTWNIC ALYVRLLLEH DLQADQILVV
TFTKAATAEL HERIRGRLAQ LAHALETGDD GGDPFVARLF ETTLGEGSEG DDGGAIDAET
AAKRIRRALR GFDQAAIHTI HAFCQRALQE APFAAAMPFA FEMEADDAAL RFELAAEFWR
TRVEPVAAAH PGFAAWLVAH RAGPEALDAQ LARRLKKPLA ALRFDGLPDP HAPGPDFDAA
LRASHAAAAA LWQAERAAIA SVLELAQASL NQRSHKPEAV ADALAAWGAY FNEAAGALAP
AALPKPALKL TRGVLEKATK KGGATPEHPF FEAAEALEAA LAAAEAAQRA RWLALIADWL
AEAPARLAEK KRTRRVVSFD DLLANLYHAL EAHPWLADTL RRRYPAALID EFQDTDPLQF
AIFDRIFAPA GPLFLVGDPK QAIYSFRAAD LHTYLAARER AGARYTLAVN QRSTPAIVEA
CNRVFGANPR AFVLDGLDYQ PVRAGTRQRA PFVDGTDPRA GSGDFRIWML PDGDQALGKR
DAQWQAAQAC AAEIARLMRG AREGAVRLGE AALTPADIAV LVQTHRQGSI VKRVLAAWGI
GSVELAQASV FATLDAEQLE RVLAAIDAPG DLRRLRAALA TDWFGLDAAA LWRLEQGEAA
PGAAADDADA MSWVERFSRY RLLWRERGFA VMWRSFAREL RIAERLIGGA DGERRVTDIN
HLAELTQARA SAQPGIAPTL RWLAAQRAVG GGEDAQLRLE SDRNLVQIVT VHKSKGLEYA
VVFCPFLNDG RLHEPREDAL PDAREYHDEA GAAVLHYGCD EAAAELAATQ ARREQAAERA
RLVYVALTRA VHRCYLVAGV YQSARSTREA RRSVLNWLVG GAGHGFDAWL ETPPEAEELA
ASWRALATGP ISIAPLPGVS ARTPLAAGHD AERLGGARQA ARFLRDAWRI ASFSSLTASI
AREQEGIAAV PDEALRPDHD ALAAAVDPVP RIDGGGERAM QPDPDDIVGF PRGAAAGECL
HLLFELSDFG DASGWDEAAR RALHERPVEA EPELAKRLPA MMTRMLAEVV ATELVPGMRL
AAIDPGRRLN EMEFLFPAAA LDFAALRALL VEHGYPDVAL ESGTLAGFFK GFIDMIVEHD
GRFLIVDWKS NHLGATPDAY GPAALDAAMA DHAYHLQALL YTVALHRYLR VRLPGYDYDS
HMAGYLYLFV RGVRPGWSSG GRPSGVHARR PSRELVEALD ALMRKERA
//
