ID W6K873_MAGSQ Unreviewed; 722 AA.
AC W6K873;
DT 16-APR-2014, integrated into UniProtKB/TrEMBL.
DT 16-APR-2014, sequence version 1.
DT 27-MAR-2024, entry version 50.
DE RecName: Full=UvrABC system protein B {ECO:0000256|ARBA:ARBA00029504, ECO:0000256|HAMAP-Rule:MF_00204};
DE Short=Protein UvrB {ECO:0000256|HAMAP-Rule:MF_00204};
DE AltName: Full=Excinuclease ABC subunit B {ECO:0000256|HAMAP-Rule:MF_00204};
GN Name=uvrB {ECO:0000256|HAMAP-Rule:MF_00204,
GN ECO:0000313|EMBL:CCQ73369.1};
GN ORFNames=MGMAQ_1452 {ECO:0000313|EMBL:CCQ73369.1};
OS Magnetospira sp. (strain QH-2) (Marine magnetic spirillum (strain QH-2)).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Thalassospiraceae; Magnetospira.
OX NCBI_TaxID=1288970 {ECO:0000313|EMBL:CCQ73369.1, ECO:0000313|Proteomes:UP000032733};
RN [1] {ECO:0000313|EMBL:CCQ73369.1, ECO:0000313|Proteomes:UP000032733}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=QH-2 {ECO:0000313|EMBL:CCQ73369.1,
RC ECO:0000313|Proteomes:UP000032733};
RX PubMed=23841906; DOI=10.1111/1462-2920.12180;
RA Ji B., Zhang S.D., Arnoux P., Rouy Z., Alberto F., Philippe N., Murat D.,
RA Zhang W.J., Rioux J.B., Ginet N., Sabaty M., Mangenot S., Pradel N.,
RA Tian J., Yang J., Zhang L., Zhang W., Pan H., Henrissat B., Coutinho P.M.,
RA Li Y., Xiao T., Medigue C., Barbe V., Pignol D., Talla E., Wu L.F.;
RT "Comparative genomic analysis provides insights into the evolution and
RT niche adaptation of marine Magnetospira sp. QH-2 strain.";
RL Environ. Microbiol. 16:525-544(2014).
CC -!- FUNCTION: The UvrABC repair system catalyzes the recognition and
CC processing of DNA lesions. A damage recognition complex composed of 2
CC UvrA and 2 UvrB subunits scans DNA for abnormalities. Upon binding of
CC the UvrA(2)B(2) complex to a putative damaged site, the DNA wraps
CC around one UvrB monomer. DNA wrap is dependent on ATP binding by UvrB
CC and probably causes local melting of the DNA helix, facilitating
CC insertion of UvrB beta-hairpin between the DNA strands. Then UvrB
CC probes one DNA strand for the presence of a lesion. If a lesion is
CC found the UvrA subunits dissociate and the UvrB-DNA preincision complex
CC is formed. This complex is subsequently bound by UvrC and the second
CC UvrB is released. If no lesion is found, the DNA wraps around the other
CC UvrB subunit that will check the other stand for damage.
CC {ECO:0000256|HAMAP-Rule:MF_00204}.
CC -!- SUBUNIT: Forms a heterotetramer with UvrA during the search for
CC lesions. Interacts with UvrC in an incision complex.
CC {ECO:0000256|ARBA:ARBA00026033, ECO:0000256|HAMAP-Rule:MF_00204,
CC ECO:0000256|RuleBase:RU003587}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_00204, ECO:0000256|RuleBase:RU003587}.
CC -!- DOMAIN: The beta-hairpin motif is involved in DNA binding.
CC {ECO:0000256|HAMAP-Rule:MF_00204}.
CC -!- SIMILARITY: Belongs to the UvrB family. {ECO:0000256|ARBA:ARBA00008533,
CC ECO:0000256|HAMAP-Rule:MF_00204, ECO:0000256|RuleBase:RU003587}.
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DR EMBL; FO538765; CCQ73369.1; -; Genomic_DNA.
DR AlphaFoldDB; W6K873; -.
DR STRING; 1288970.MGMAQ_1452; -.
DR KEGG; magq:MGMAQ_1452; -.
DR HOGENOM; CLU_009621_2_1_5; -.
DR Proteomes; UP000032733; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0009380; C:excinuclease repair complex; IEA:InterPro.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009381; F:excinuclease ABC activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006289; P:nucleotide-excision repair; IEA:UniProtKB-UniRule.
DR GO; GO:0009432; P:SOS response; IEA:UniProtKB-UniRule.
DR CDD; cd17916; DEXHc_UvrB; 1.
DR CDD; cd18790; SF2_C_UvrB; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 3.
DR Gene3D; 4.10.860.10; UVR domain; 1.
DR HAMAP; MF_00204; UvrB; 1.
DR InterPro; IPR006935; Helicase/UvrB_N.
DR InterPro; IPR014001; Helicase_ATP-bd.
DR InterPro; IPR001650; Helicase_C.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR001943; UVR_dom.
DR InterPro; IPR036876; UVR_dom_sf.
DR InterPro; IPR004807; UvrB.
DR InterPro; IPR041471; UvrB_inter.
DR InterPro; IPR024759; UvrB_YAD/RRR_dom.
DR NCBIfam; TIGR00631; uvrb; 1.
DR PANTHER; PTHR24029; UVRABC SYSTEM PROTEIN B; 1.
DR PANTHER; PTHR24029:SF0; UVRABC SYSTEM PROTEIN B; 1.
DR Pfam; PF00271; Helicase_C; 1.
DR Pfam; PF04851; ResIII; 1.
DR Pfam; PF02151; UVR; 1.
DR Pfam; PF12344; UvrB; 1.
DR Pfam; PF17757; UvrB_inter; 1.
DR SMART; SM00487; DEXDc; 1.
DR SMART; SM00490; HELICc; 1.
DR SUPFAM; SSF46600; C-terminal UvrC-binding domain of UvrB; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 2.
DR PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR PROSITE; PS51194; HELICASE_CTER; 1.
DR PROSITE; PS50151; UVR; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00204}; Coiled coil {ECO:0000256|SAM:Coils};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00204};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW DNA excision {ECO:0000256|ARBA:ARBA00022769, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW Excision nuclease {ECO:0000256|ARBA:ARBA00022881, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00204}; Reference proteome {ECO:0000313|Proteomes:UP000032733};
KW SOS response {ECO:0000256|ARBA:ARBA00023236, ECO:0000256|HAMAP-
KW Rule:MF_00204}.
FT DOMAIN 55..208
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51192"
FT DOMAIN 460..626
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51194"
FT DOMAIN 654..689
FT /note="UVR"
FT /evidence="ECO:0000259|PROSITE:PS50151"
FT REGION 695..722
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COILED 657..689
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 121..144
FT /note="Beta-hairpin"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00204"
FT BINDING 68..75
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00204"
SQ SEQUENCE 722 AA; 81139 MW; A89156077621D824 CRC64;
MLEPGENQRY IRPMNTVVPF IPQKRQPVGD GPAFRLESDY SPSGDQPQAI TELVAGITAQ
ETDQVLLGVT GSGKTFTVAK VIEQVQRPAL VLAPNKTLAA QLYAEMKEFF PHNAVEYFVS
YYDYYQPEAY VPRTDTYIEK DSAINEQIDR MRHAATRALF ERDDVIIVAS VSCIYGIGAP
ETYAEMVAKV TVGEEVARNA LMKRLVELQY QRNDASFHRG TFRVRGDVVE IFPSHYEDRA
WRVSFFGDEV EEIREIDSLT GEKTGSLEQI TVYPASHYVT PRPTIQQAMI KIKTELKARL
EILHAEGKLL EAQRLEERTT FDLEMMETTG HCSGIENYSR YLTGREPGQP PPTLFEYLPE
NALLFVDESH VTVSQLGGMY RGDFNRKSTL ADFGFRLPSC VDNRPLKFEE WETMRPQTVY
VSATPGDWEM ERTEGVFVEQ VIRPTGLIDP VCLVRPVEHQ VDDLMAECKA CAGKGERVLV
TVLTKRMAED LTEYLHEQGI RVRYMHSDID TIERIEIIRD LRLGAFDVLV GINLLREGLD
IPECALVAIL DADKEGFLRS KRSLVQTIGR AARNVDGRVI LYADKMTDSL EYAISETNRR
REKQQAFNVA NGITPESVKK KVADILEGVE QKDYVTVRLS DTGGPTEVVG KDLTQVKADM
EKRMRAAAAD LEFEEAARLR DEIRRLEAHE LGLDGAGVAP RAASRAGVGG KGPGKKGRGR
RG
//
