ID A0A2K8KTY7_9GAMM Unreviewed; 588 AA.
AC A0A2K8KTY7;
DT 25-APR-2018, integrated into UniProtKB/TrEMBL.
DT 25-APR-2018, sequence version 1.
DT 27-MAR-2024, entry version 22.
DE RecName: Full=RecBCD enzyme subunit RecD {ECO:0000256|HAMAP-Rule:MF_01487};
DE EC=3.1.11.5 {ECO:0000256|HAMAP-Rule:MF_01487};
DE AltName: Full=Exonuclease V subunit RecD {ECO:0000256|HAMAP-Rule:MF_01487};
DE Short=ExoV subunit RecD {ECO:0000256|HAMAP-Rule:MF_01487};
DE AltName: Full=Helicase/nuclease RecBCD subunit RecD {ECO:0000256|HAMAP-Rule:MF_01487};
GN Name=recD {ECO:0000256|HAMAP-Rule:MF_01487};
GN ORFNames=REIFOR_03078 {ECO:0000313|EMBL:ATX78197.1};
OS Reinekea forsetii.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Saccharospirillaceae; Reinekea.
OX NCBI_TaxID=1336806 {ECO:0000313|EMBL:ATX78197.1, ECO:0000313|Proteomes:UP000229757};
RN [1] {ECO:0000313|EMBL:ATX78197.1, ECO:0000313|Proteomes:UP000229757}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Hel1_31_D35 {ECO:0000313|EMBL:ATX78197.1,
RC ECO:0000313|Proteomes:UP000229757};
RX PubMed=28000419;
RA Avci B., Hahnke R.L., Chafee M., Fischer T., Gruber-Vodicka H.,
RA Tegetmeyer H.E., Harder J., Fuchs B.M., Amann R.I., Teeling H.;
RT "Genomic and physiological analyses of 'Reinekea forsetii' reveal a
RT versatile opportunistic lifestyle during spring algae blooms.";
RL Environ. Microbiol. 19:1209-1221(2017).
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 has
CC ssDNA-dependent ATPase and 5'-3' helicase activity. When added to pre-
CC assembled RecBC greatly stimulates nuclease activity and augments
CC holoenzyme processivity. Negatively regulates the RecA-loading ability
CC of RecBCD. {ECO:0000256|HAMAP-Rule:MF_01487}.
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_01487};
CC -!- SUBUNIT: Heterotrimer of RecB, RecC and RecD. All subunits contribute
CC to DNA-binding. {ECO:0000256|HAMAP-Rule:MF_01487}.
CC -!- SIMILARITY: Belongs to the RecD family. {ECO:0000256|HAMAP-
CC Rule:MF_01487}.
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DR EMBL; CP011797; ATX78197.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2K8KTY7; -.
DR KEGG; rfo:REIFOR_03078; -.
DR OrthoDB; 9803432at2; -.
DR Proteomes; UP000229757; Chromosome.
DR GO; GO:0009338; C:exodeoxyribonuclease V complex; IEA:InterPro.
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:0000724; P:double-strand break repair via homologous recombination; IEA:UniProtKB-UniRule.
DR CDD; cd17933; DEXSc_RecD-like; 1.
DR CDD; cd18809; SF1_C_RecD; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 3.
DR Gene3D; 1.10.10.1020; RecBCD complex, subunit RecD, N-terminal domain; 1.
DR HAMAP; MF_01487; RecD; 1.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR006344; RecD.
DR InterPro; IPR041851; RecD_N_sf.
DR InterPro; IPR027785; UvrD-like_helicase_C.
DR NCBIfam; TIGR01447; recD; 1.
DR PANTHER; PTHR43788; DNA2/NAM7 HELICASE FAMILY MEMBER; 1.
DR PANTHER; PTHR43788:SF6; RECBCD ENZYME SUBUNIT RECD; 1.
DR Pfam; PF13245; AAA_19; 1.
DR Pfam; PF13538; UvrD_C_2; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 2.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01487}; DNA damage {ECO:0000256|HAMAP-Rule:MF_01487};
KW DNA repair {ECO:0000256|HAMAP-Rule:MF_01487};
KW DNA-binding {ECO:0000256|HAMAP-Rule:MF_01487};
KW Exonuclease {ECO:0000256|HAMAP-Rule:MF_01487};
KW Helicase {ECO:0000256|HAMAP-Rule:MF_01487};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01487, ECO:0000313|EMBL:ATX78197.1};
KW Nuclease {ECO:0000256|HAMAP-Rule:MF_01487};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01487}; Reference proteome {ECO:0000313|Proteomes:UP000229757}.
FT DOMAIN 515..558
FT /note="UvrD-like helicase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF13538"
FT BINDING 170..177
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01487"
SQ SEQUENCE 588 AA; 64536 MW; F49F9F5A11A6CE16 CRC64;
MTLNLASPFQ ALDFALAESI AQWHQTDDAL FKQSVMAVSY ALQQGHSCLS LVQCLDEAPY
RDMSQFGLPA LPSAADWQTH LSTFGIGPED GSPLVLHNQR LYLRRYWQFE SELLAFLAER
YQQPSSLSQA QLEQARKLLA SYFAPTPGQI DWQQVAAANS LFSNVSTIIG GPGTGKTHTV
TRILALLAGL SDRPLVIKLA APTGKAAQRL AEAIREAKAA LNLDMLVDQA IPNEAHTLHR
LLGVIPNRLQ FRHQGDNPIE ADVLLIDEVS MVDLPLMARL FRAIKPTTRL ILLGDADQLP
SVAAGSVLAD LVRKPHPGYS EARRSQLQAV GIKLPAASIE LGAPLDSVTE LTLSRRFAHG
SGIGALAQAV IRGDASGSLA VFTDAADLTW LGAHDLHDCL HGWIRNHYRA IAEQPDLHQA
FAHLKTFRIL CALRDGERGV TALNDWISQR LNPSRQPFFK GQPIMVTQNH YGLKLFNGDV
GLVWPNEDGQ LMVWFEAEGE PRPVTPGRLP TFETVYAMTI HKTQGSEFDE VALVLPDHQS
QLLSRELIYT GLTRAKKRFS CLGTAAVWRA GVTARVDRWA GLAARLQG
//
