ID W7QEI5_9ALTE Unreviewed; 1218 AA.
AC W7QEI5;
DT 16-APR-2014, integrated into UniProtKB/TrEMBL.
DT 16-APR-2014, sequence version 1.
DT 27-MAR-2024, entry version 52.
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=DS2_03970 {ECO:0000313|EMBL:EWH11299.1};
OS Catenovulum agarivorans DS-2.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Alteromonadaceae; Catenovulum.
OX NCBI_TaxID=1328313 {ECO:0000313|EMBL:EWH11299.1, ECO:0000313|Proteomes:UP000019276};
RN [1] {ECO:0000313|EMBL:EWH11299.1, ECO:0000313|Proteomes:UP000019276}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DS-2 {ECO:0000313|EMBL:EWH11299.1,
RC ECO:0000313|Proteomes:UP000019276};
RX PubMed=24604650;
RA Shan D., Li X., Gu Z., Wei G., Gao Z., Shao Z.;
RT "Draft Genome Sequence of the Agar-Degrading Bacterium Catenovulum sp.
RT Strain DS-2, Isolated from Intestines of Haliotis diversicolor.";
RL Genome Announc. 2:e00144-14(2014).
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:EWH11299.1}.
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DR EMBL; ARZY01000005; EWH11299.1; -; Genomic_DNA.
DR RefSeq; WP_051479607.1; NZ_ARZY01000005.1.
DR AlphaFoldDB; W7QEI5; -.
DR STRING; 1328313.DS2_03970; -.
DR PATRIC; fig|1328313.3.peg.822; -.
DR eggNOG; COG1074; Bacteria.
DR OrthoDB; 9810135at2; -.
DR Proteomes; UP000019276; 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; 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:UP000019276}.
FT DOMAIN 1..454
FT /note="UvrD-like helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51198"
FT DOMAIN 488..748
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51217"
FT REGION 1..847
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 908..1218
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 1102
FT /note="For nuclease activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 22..29
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00560"
FT BINDING 969
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1089
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 1102
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1218 AA; 139809 MW; 24BBF1667B282203 CRC64;
MSQGNLLSVE NMVLSGRHLI EASAGTGKTY NITRIYLRLL LEKNLSVKEI LLMTFTKAAT
EELKGRIEKV LRETLNKWSS LADSEDEFFI SLHQAVPAEA AKLKLKAALL ELDEASIYTI
HGFCKTVLSQ QAFASQLPMQ MNMEVDTSEL LIQAVQDWFR TNANNQSIID ALYQYNWHTP
DRFFRQFSNA LKTQQQYVVA TADKINQAHQ AAVELWLEAI NTRKKQLRHD LLAQQTDIFE
ALVYSKKGAE QQKRQAEWAC MLAWLDNPSL EIAPKEVGDF INGNRYRNNQ LISDIFAPVK
ALRDEYKKTA ASFDAELAAY LDAADVNQIV ASAIDDIRIS FVQNKSIKKV LDFDDLIYLL
ANALNQPQAQ QQLIPQLRKQ YPVALIDEFQ DTDTNQYQIL QSLYAVDAAE HALFMIGDPK
QAIYGFRGGD IFTYLAARNH ADYIWVMDTN WRSNLLVIQA YNRLFHGTNI ELPARDVFGF
DIQYQQVNAG KKSTENVFND NSDYQAVNYW LYQPTDEDNK VVKNKADLKT GLAIYTANEI
VRLLEEVELN NRAVRPQDIA ILVRTGTEAA VIKQALQQAN IASVYLSESS NVFESTQAKH
ILFVLEALLE LDNSKLINRA LASDLFGYTA QQIFDLHLDN NHNQYDLVIE QLQQYRLQWQ
QKGIMSVLLD LMQKNYQPLP QFHERGLTNM LHLAEILQKK SIQLKHPQQL MKWFKEQVSL
PQSQSEAELR LESDSHLVQI VTQHKSKGLE YPIVFIPFAT EYSDPTKVAN RTNYLLRYFN
QATGKSDLQV GLDASALQAN KLEGEAEAVR LLYVAVTRAE HRLYIGMPMH NHAEKSALAK
CLDLQRTDKS KWPQQLNEIA QEQAMQGAIS IKQFDSLVDD IEVKVLNNSA QSTGELPVHI
FTGDIEDNWY LSSFSSLTRN SHSQIKQIER HDEFNLKQLA SPAEPAVEPI QNELRFTLKK
GADAGNLLHD ILEHSDFSKQ NWSEVSEAPL SRFAQLPEEQ HQYLYAWLDE VVQTPLPLMN
LDGSPTGEHF CLADLHFNQT LREAEFYFPL NYLNIFKLNK ILAQHRQEQH AHYLLQTNAI
KGMMHGFIDL IFEYQGKYYV ADYKSTHLGN QLADYGFEQL KLNNQSHYYD LQYLIYSVAL
HRYLQNRLPT YNYKEHFGGV YYLYLRGMKA AEQSLGDYYG VYYNTIELKV IESLDNLMAD
CQLEEQQTGE DRGQISLF
//
