ID A0A010SJL4_PSEFL Unreviewed; 1229 AA.
AC A0A010SJL4;
DT 11-JUN-2014, integrated into UniProtKB/TrEMBL.
DT 11-JUN-2014, sequence version 1.
DT 27-MAR-2024, entry version 56.
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=HK44_018325 {ECO:0000313|EMBL:EXF91403.1};
OS Pseudomonas fluorescens HK44.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=1042209 {ECO:0000313|EMBL:EXF91403.1, ECO:0000313|Proteomes:UP000022611};
RN [1] {ECO:0000313|EMBL:EXF91403.1, ECO:0000313|Proteomes:UP000022611}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HK44 {ECO:0000313|EMBL:EXF91403.1,
RC ECO:0000313|Proteomes:UP000022611};
RX PubMed=21742869; DOI=10.1128/JB.05530-11;
RA Chauhan A., Layton A.C., Williams D.E., Smartt A.E., Ripp S.,
RA Karpinets T.V., Brown S.D., Sayler G.S.;
RT "Draft genome sequence of the polycyclic aromatic hydrocarbon-degrading,
RT genetically engineered bioluminescent bioreporter Pseudomonas fluorescens
RT HK44.";
RL J. Bacteriol. 193:5009-5010(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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EXF91403.1}.
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DR EMBL; AFOY02000024; EXF91403.1; -; Genomic_DNA.
DR RefSeq; WP_019691691.1; NZ_AFOY02000024.1.
DR AlphaFoldDB; A0A010SJL4; -.
DR PATRIC; fig|1042209.11.peg.5831; -.
DR eggNOG; COG1074; Bacteria.
DR HOGENOM; CLU_001114_6_0_6; -.
DR OrthoDB; 9810135at2; -.
DR Proteomes; UP000022611; 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; 2.
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}; Reference proteome {ECO:0000313|Proteomes:UP000022611}.
FT DOMAIN 1..461
FT /note="UvrD-like helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51198"
FT DOMAIN 462..769
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51217"
FT REGION 1..878
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 926..1229
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 1121
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 992
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1108
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1121
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1229 AA; 137941 MW; BCFAEDC8E916B44E CRC64;
MTAKVSLALA FPLRGSQLIE ASAGTGKTFT ISALYLRLVL GHGDESAGFG RELLPPQILV
VTFTDAATKE LRERIRTRLT EAARFFREET PAPDSLIAEL RGQFSPEQWS GCANRLDIAA
QWMDEAAVST IHSWCQRMLR EHAFDSGSLF TQTLEVDHSD LLGEVLRDYW RLFCYPMQGD
ALNWVRSHWG GPAALLPRVR GLFASERDTD EGKAPAELIA ECLQARRDAL LELKAPWRQW
AQELREICLQ GVASKSVDGR KMQARYFEPW FEKISAWAED DSLEQLDIGT GFNRLTPDGM
AEAWKGQAPS HPGLDAMPGL KTSLDALPTP DAAVLKHAAQ WVGARFEEEK RRRAEMGFDD
MLLRLDAALR AEGGERLATL IREQFPVALI DEFQDTDPVQ YRIFESIYRI EDNNPECGLF
LIGDPKQAIY AFRGADIYTY LRARQATSGR LHTLGTNFRS SHGMVDAVNH VFQRAEAREQ
GRGAFLFREN SGENPVPFLP VESQGRKESL QINGQAVPAL NIWQLSSEQP LSGVVYRQQL
AAACASEITA LLNGGQQRRA GFVRGAEDLQ GLLPADIAIL VRDGKEAQAV RNELSARGVR
SVYLSDKDSV FAAQEAHDLL SWLKACAEPD VERPLRAALA SITLNLSLIE LARLNQDELA
WEKRVMQFRE YRVIWRSQGI LPMLRRLLHD FELPQALIAR SDGERILTNL LHLSELLQQA
AAELDGEQAL IRHLSEHLAL SGQAGEEQIL RLESDEQLVK VVTIHKSKGL EYPLVFLPFI
CSAKPVDGSR LPLHYHDASG QAQITLSPTS ELIALADDER LAEDLRLLYV ALTRAQHACW
LGVTDLKRGN NNSSVLHLSA LGYLLGGGEK LAESTALKRW LEDLQQSCSA LSYGEMPEVT
TERFLPPRNE ATLLAPLIPK RKAAENWWIA SYSALRIGDS LSVGSDEAPE SPQAQKLFDD
ERLDPEAPRE VLASGGDIHR FPRGPNPGTF LHGLLEWAGD EGFAADPKSI ENAIARRCNR
RGWEGWINTL SDWLQHLLQA PLRIGAEQPP VVLEQLTEYR VEMEFWFASH KVDVLKLDEL
VRQYTHEGAS RVVAEPVLLN GMFKGFIDLT FEHAGRYYVA DYKSNWLGAD DSAYTEQAME
KSMLDHRYDL QYVLYLLALH RQLKARLADY DYDRHVGGAL YLFLRGTRGP SQGVYFTRPP
RELIERLDRL FQGKPEPKPE PAWEQGVLL
//
