ID A0A0F7JW59_9GAMM Unreviewed; 1207 AA.
AC A0A0F7JW59;
DT 22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2015, sequence version 1.
DT 27-MAR-2024, entry version 43.
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=AAY24_05365 {ECO:0000313|EMBL:AKH19872.1};
OS Sedimenticola thiotaurini.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Sedimenticola.
OX NCBI_TaxID=1543721 {ECO:0000313|EMBL:AKH19872.1, ECO:0000313|Proteomes:UP000034410};
RN [1] {ECO:0000313|EMBL:AKH19872.1, ECO:0000313|Proteomes:UP000034410}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SIP-G1 {ECO:0000313|EMBL:AKH19872.1,
RC ECO:0000313|Proteomes:UP000034410};
RX PubMed=26089430;
RA Flood B.E., Jones D.S., Bailey J.V.;
RT "Complete Genome Sequence of Sedimenticola thiotaurini Strain SIP-G1, a
RT Polyphosphate- and Polyhydroxyalkanoate-Accumulating Sulfur-Oxidizing
RT Gammaproteobacterium Isolated from Salt Marsh Sediments.";
RL Genome Announc. 3:e00671-15(2015).
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; CP011412; AKH19872.1; -; Genomic_DNA.
DR RefSeq; WP_046858808.1; NZ_CP011412.1.
DR AlphaFoldDB; A0A0F7JW59; -.
DR KEGG; seds:AAY24_05365; -.
DR PATRIC; fig|1543721.4.peg.1111; -.
DR OrthoDB; 9810135at2; -.
DR Proteomes; UP000034410; Chromosome.
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; 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; 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}; Reference proteome {ECO:0000313|Proteomes:UP000034410}.
FT DOMAIN 1..441
FT /note="UvrD-like helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51198"
FT DOMAIN 442..730
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51217"
FT REGION 1..880
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 921..1207
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 1107
FT /note="For nuclease activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 19..26
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00560"
FT BINDING 975
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1094
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1107
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1207 AA; 135725 MW; FAF171834ED673B4 CRC64;
MQPLALFDTP LDGMNLIEAS AGTGKTYTIT GLYLRLILEQ GLTVEQILVV TYTKAATAEL
RERIRTRMVA LKRAAEMDGA DEFRDALLAD PATVELRLQR LTLAILSFDR AAIFTIHGFC
QRLLSENAFE SGMPFQTEML LDERSLVQEV VDDFWRRHIQ DIPSGLLGYL LDRGITPDQL
ADGLRGNINK PYLEIRGQGM PEGLAELERD FLNHFEVARQ LWLDQREAIV TLLKQSDGLN
RQKYRLASID KWVLAMDQFL QPGPGPRFAE LEKFTSGALA KALKKGGVAP THPFFDHCDT
LLGALNSLES HYEQARVALL SELIPYVNEE LYRRKQQLRV QSYDDLLLNL QGALRGDRGA
ALVDAVRRTY NAALIDEFQD TDPVQYEIFE TLFVERPGIL FLVGDPKQAI YSFRGADIFA
YLKASAEARN RYTLDVNWRS VAPLIDAVNH LFAQPQGGFL FPQIGFQVSK PAPKEQTRLL
DPAGDPACFR VGFIPGKQSK EQAAQIAATW TAREIARLLG PGVSAARLGE RALVGGDIAV
LVRTHRQGRM IRDALAERGI YSVQRAQEDV FKTHEATELE RLLRAVMEPQ RDGLVFAALG
TDLLGVSGDE IAGLASDETQ LGGYLEQFQV YHELWQAHGF MRMFRHLLRE YRVTERLLGL
PDGERRLTNI LHLSELIHQQ ERDTTAGMEA QINWFSQLRL GDMPEDEQRQ LRLESDDNLV
QIVTIHKSKG LQYPVVFCPF VWDGGTRAIR SDEACHFHDP GKDNQAVLDL GSPDWPAACQ
VSQAETLAES LRLLYVALTR AEQRCYITWG KVNGAETSPL AWLLYPPPSP EDMGLDAPAE
AKDQDRLESL ATHFKSLDES ALLGPLQAWS EQLSGEVLIS PCDTEPEEPE VASEPTAVER
HSPYVAEALQ ARQFNRYLSR GNAVTSFSAL AAGSEHFELP DHDEILSPME LTSEPPTGRD
RFSFPRGANP GSCLHAIFER LEFNRHTLDE LQDLVQQQLA AYGIDPVWQD VVCQLVNDVL
DTPLEPGSDR CLRRLSKAQC LVEMEFNYPV ARLQAPGLAK LLMEQGFAGS EALEQAIRRL
SFTDTKGYLK GFVDLIFVHD GRYHLLDYKS NWLGDQIEDY GQANLASAIA RDGYYLQYLL
YSLALHRYLA QRIADYDYER HFGSIYYLFL RGISPTAGPD YGIFRDRPAR RLIEALDDYF
AGTEVSA
//
