ID B4X4Z1_9GAMM Unreviewed; 1198 AA.
AC B4X4Z1;
DT 23-SEP-2008, integrated into UniProtKB/TrEMBL.
DT 23-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 84.
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 ORFNames=ADG881_86 {ECO:0000313|EMBL:EDX87984.1};
OS Alcanivorax sp. DG881.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Alcanivoracaceae; Alcanivorax.
OX NCBI_TaxID=236097 {ECO:0000313|EMBL:EDX87984.1, ECO:0000313|Proteomes:UP000003954};
RN [1] {ECO:0000313|EMBL:EDX87984.1, ECO:0000313|Proteomes:UP000003954}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DG881 {ECO:0000313|EMBL:EDX87984.1,
RC ECO:0000313|Proteomes:UP000003954};
RA Bolch C., Ferriera S., Johnson J., Kravitz S., Beeson K., Sutton G.,
RA Rogers Y.-H., Friedman R., Frazier M., Venter J.C.;
RL Submitted (JUL-2008) to the EMBL/GenBank/DDBJ databases.
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; DS989915; EDX87984.1; -; Genomic_DNA.
DR RefSeq; WP_007148392.1; NZ_DS989915.1.
DR AlphaFoldDB; B4X4Z1; -.
DR STRING; 236097.ADG881_86; -.
DR eggNOG; COG1074; Bacteria.
DR HOGENOM; CLU_001114_6_0_6; -.
DR Proteomes; UP000003954; Unassembled WGS sequence.
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; 2.
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 1..462
FT /note="UvrD-like helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51198"
FT DOMAIN 495..762
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51217"
FT REGION 1..868
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 914..1198
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 1103
FT /note="For nuclease activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 21..28
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00560"
FT BINDING 973
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1090
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1103
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1198 AA; 134692 MW; 1FDE528AB496A603 CRC64;
MNIERPLPIT FPLHGTRLIE ASAGTGKTFT LAALYLRLVL GHGDENGFSR PLLPPEILVV
TFTEAATEEL RERIRDRLAD AARIFADSNA EADDPVLAEL LNDYSAPDDR ARCAQRLEAA
AQWMDEAAIY TIHGFCNRML KQHAFDSGSL FSLELQEDAS DEQQMAARDY WRTIISKFPV
SAANALQSDN LGNPDALLEA CRPLLGLKEA DPEELPQSVT HWLTQTGPQA DKDQQARQQL
ADELPEFLEW VRAARDNKWL NGNSYRTTSL PGMLQTLQRY ANGERLNGKA YDTLAKFSNE
GMRLTKAGQE QRPDFAFCQQ LDAVMDGRAN TQLPRTDLLA HAAAWIDRRV DQVRRQTATM
GFDDMLSRLH DALKGGNGER LAQVIRDQFP VALIDEFQDT DPTQYGIFCA LYEGQEGTGW
FMIGDPKQAI YAFRGADVFT YLKARRATEG NHYTLDKNFR SADAMVHAVN HLFSYSQNTF
GDVFMMDNAI PFEAVQANGR KDVLLVDNNE KSGITLWVDE QEKPVSAGQY RDEQAARCAS
EIAHLLNGAV KGVTGFQKTD SFRPLHPNDI AILVRDRTEA KAIRDALMER QVRSVYLSDQ
DSVFAQPEAH DLLLILHACA TPESDTRVRS ALACAVLDLA YAELDALNQD EVRWEETVEQ
FHGYRQQWQT QGVLPMLRSL LMDFHVPARL SQSLDGERAL TNLLHLAELL QQAATQLDGE
QSLIRYLEDT VEEGRGSSKE SILRLESDDD RVKVITIHKS KGLEYPLVYL PFICSFRPAD
KNKPPLRYHE NDHLNVSLEP DETVENKADH ERLAEDMRLL YVALTRACHT CTLGIAPYIK
GRGKQNQLEK SAIGRLLFGN GVANDGLRAA LTPVAHDAVA IINAPDSNPE CYQPKAQARP
LRTPLIPVAR QRQPWWIASY SALKQVQETL APADPRGDQL AEQQDDTVID DAEPLPDTIH
AFPRGAAPGT LLHDVLEQAA NQSFTQTLAD PAEFETSVEE KLQARGWQDF MEVIRHWWKQ
AVTTSLPLEN DRIALNTLHT YVPELEFLFP AHQVKVAEMD TLIRQHIHPQ HPRPRLEADT
LNGMLKGFID LVFEHDGKYY VLDYKSNWLG VDDSAYTLDA MTDAVLEKRY EVQYVLYLLA
LHRLLKSRLP DYDPDQHLGG AVYVFLRGLQ GPAAGTVFDR PATGLIEALD VMFEARES
//
