ID Q6A850_CUTAK Unreviewed; 1078 AA.
AC Q6A850;
DT 13-SEP-2004, integrated into UniProtKB/TrEMBL.
DT 13-SEP-2004, sequence version 1.
DT 27-MAR-2024, entry version 141.
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=PPA1316 {ECO:0000313|EMBL:AAT83065.1};
OS Cutibacterium acnes (strain DSM 16379 / KPA171202) (Propionibacterium
OS acnes).
OC Bacteria; Actinomycetota; Actinomycetes; Propionibacteriales;
OC Propionibacteriaceae; Cutibacterium.
OX NCBI_TaxID=267747 {ECO:0000313|EMBL:AAT83065.1, ECO:0000313|Proteomes:UP000000603};
RN [1] {ECO:0000313|EMBL:AAT83065.1, ECO:0000313|Proteomes:UP000000603}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16379 / KPA171202 {ECO:0000313|Proteomes:UP000000603};
RX PubMed=15286373; DOI=10.1126/science.1100330;
RA Bruggemann H., Henne A., Hoster F., Liesegang H., Wiezer A.,
RA Strittmatter A., Hujer S., Durre P., Gottschalk G.;
RT "The complete genome sequence of Propionibacterium acnes, a commensal of
RT human skin.";
RL Science 305:671-673(2004).
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; AE017283; AAT83065.1; -; Genomic_DNA.
DR RefSeq; WP_002531332.1; NZ_CP025935.1.
DR AlphaFoldDB; Q6A850; -.
DR EnsemblBacteria; AAT83065; AAT83065; PPA1316.
DR KEGG; pac:PPA1316; -.
DR PATRIC; fig|267747.3.peg.1353; -.
DR eggNOG; COG1074; Bacteria.
DR HOGENOM; CLU_001114_6_1_11; -.
DR Proteomes; UP000000603; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
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; cd17932; DEXQc_UvrD; 1.
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 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 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; 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 REGION 1..736
FT /note="DNA-binding and helicase activity, interacts with
FT RecC"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT REGION 771..1078
FT /note="Nuclease activity, interacts with RecD and RecA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT ACT_SITE 972
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 827
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 958
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
FT BINDING 972
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01485"
SQ SEQUENCE 1078 AA; 118147 MW; 570D269D97A685F8 CRC64;
MTTNTSFDIT RPLPQGTVLL AASAGTGKTW TISAVCAKAI ATGLVHMKNL LLVTFNRSAA
RELRGRVYER LVNTRLLLAG AREPSDPCDW SLIRCGRAGF TRVESALDNF DRAVITTTHE
FASRMLVELG VLSDHDPSSV LMTDLAPLAT EVSDDHYLAQ YLDYDRPPSV REKRELSRDV
AVKYGEVPIF SKDDADTPVQ DVLWALSVRE DVRRRSKSRS VHTFDDLIGD LVKALRDPYR
GPLARATLAH RFGLVMVDEF QDTDPLQWEI LRRAFHGHSN LWLIGDPKQS IYAFRGADIH
AYQDAAQSAS HVLHLDVNYR TDKPIVEAVN TLFSNAQLGH DISMELVTAH HQESRIKTAA
TDGPRYHWSQ PFQIRCLQAP AGAQLNTATS DQFVTEDLVN QVIMMLEGGT VVQDGDGLRP
LRPTDIAILV RTRRRGAELA TALSQAHQPA VFSGASPVWS SQAAEDLITL LEALENTDER
LRTRLCLSDL IGATPADLAA SDSRVRSDLA IDLARWSSTW TMTGVWGTVE AALHRPGVLV
RLVSMAGGER YVTDLRQVAQ KAHIAACEGR LTATATAAWI REQQQLAGDD EPRRLDSDQQ
AVIIMTIHEA KGLGFPVVLL PDITNGWAPK QSINGPIVWH DGQRRVLDIS SQGTDRSIAI
ESHEEDERGE NLRLLYVALT RARSAVRLWW SPCPLRHRWS AFQRLVEMDR TTGELGSGVA
GTDPGTLPWL NSGPIATVIA PANQKLLTRS VSAQPRACVV PRTLTRPLDT AFARTSYSGL
TANLHAAVSE PMTDGLIDEP VDDETVDDTA PGLCGLPGGT SFGTLVHTVL EYIDTAAIDL
SSEVLSITRR ALRMSPLPDV PPSELATSLE QVLHSDLGPL APGMTLADFS PADRLAEMNF
ELAMAQSGRS TTMTDLASLL CDPSLVPPDD PISGYGEILA HIPNGDQALR GFLTGSIDAV
LRRPDGRHLV VDYKTNRIPG VHKLSPHMYD AHTMRTMMFS SHYPLQGLLY SAALHRFLAS
SLPGYDPATH LGPIGYLFVR GMADRPVPDG DMPDGVFTWH PRPELIEAIS ERLGGLHD
//
