ID UVRB_AQUAE Reviewed; 663 AA.
AC O67708;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1998, sequence version 1.
DT 27-MAR-2024, entry version 139.
DE RecName: Full=UvrABC system protein B {ECO:0000255|HAMAP-Rule:MF_00204};
DE Short=Protein UvrB {ECO:0000255|HAMAP-Rule:MF_00204};
DE AltName: Full=Excinuclease ABC subunit B {ECO:0000255|HAMAP-Rule:MF_00204};
GN Name=uvrB {ECO:0000255|HAMAP-Rule:MF_00204}; OrderedLocusNames=aq_1856;
OS Aquifex aeolicus (strain VF5).
OC Bacteria; Aquificota; Aquificae; Aquificales; Aquificaceae; Aquifex.
OX NCBI_TaxID=224324;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VF5;
RX PubMed=9537320; DOI=10.1038/32831;
RA Deckert G., Warren P.V., Gaasterland T., Young W.G., Lenox A.L.,
RA Graham D.E., Overbeek R., Snead M.A., Keller M., Aujay M., Huber R.,
RA Feldman R.A., Short J.M., Olsen G.J., Swanson R.V.;
RT "The complete genome of the hyperthermophilic bacterium Aquifex aeolicus.";
RL Nature 392:353-358(1998).
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:0000255|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:0000255|HAMAP-Rule:MF_00204}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00204}.
CC -!- DOMAIN: The beta-hairpin motif is involved in DNA binding.
CC {ECO:0000255|HAMAP-Rule:MF_00204}.
CC -!- SIMILARITY: Belongs to the UvrB family. {ECO:0000255|HAMAP-
CC Rule:MF_00204}.
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DR EMBL; AE000657; AAC07664.1; -; Genomic_DNA.
DR PIR; B70460; B70460.
DR RefSeq; NP_214276.1; NC_000918.1.
DR RefSeq; WP_010881212.1; NC_000918.1.
DR AlphaFoldDB; O67708; -.
DR SMR; O67708; -.
DR STRING; 224324.aq_1856; -.
DR EnsemblBacteria; AAC07664; AAC07664; aq_1856.
DR KEGG; aae:aq_1856; -.
DR PATRIC; fig|224324.8.peg.1437; -.
DR eggNOG; COG0556; Bacteria.
DR HOGENOM; CLU_009621_2_1_0; -.
DR InParanoid; O67708; -.
DR OrthoDB; 9806651at2; -.
DR Proteomes; UP000000798; 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; Cytoplasm; DNA damage; DNA excision; DNA repair;
KW Excision nuclease; Nucleotide-binding; Reference proteome; SOS response.
FT CHAIN 1..663
FT /note="UvrABC system protein B"
FT /id="PRO_0000138378"
FT DOMAIN 29..416
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 433..599
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 624..659
FT /note="UVR"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT MOTIF 95..118
FT /note="Beta-hairpin"
FT BINDING 42..49
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
SQ SEQUENCE 663 AA; 77339 MW; 58F3D52F1E49989C CRC64;
MGVSEQRFKL KTNLKPAGDQ PKAIKKLLEN LRKGVKEQTL LGVTGSGKTF TLANVIAKYN
KPTLVVVHNK ILAAQLYREF KELFPENAVE YFVSYYDYYQ PEAYIPEKDL YIEKDASINE
TLERFRHSAT ISVLERRDVI VVASVSCIYG LGKPEHYENL RIKLQRGIRL NLSKLLRKLV
ELGYQRNDFA IKRATFSVRG DVVEIVPSHT EDYLVRVEFW DDEVERIVLM DALNRHVIKE
VEEYSVFPAS HYIAPRPTVE QALKEIEKDL IERVKWFKSQ GREVEAQRLY QRTMYDIEMI
RELGHCKGIE NYSRYFDGRK PGEPPFTLLD YFPEDFLLII DESHMTIPQL RAMYNGDRSR
KEKLVEYGWR LPSALDNRPL KFEEFLERIN QVIYVSATPG DWELERSEAV VEQIVRPTGL
LDPVVEVRPK MNQLENLVKE IKEVKKRKER ALVLTTTKRL AEEIADYLTE RKIRAKYMHS
ELDAIERAQL IRELREGSID VIVGVNLLRE GLDLPEVSLV AIMDADKEGF LRSYQALIQT
IGRAARNIHG KAILYADRIT KAMEKAIQET QRRRKIQEEF NKKHGITPKS IKKPVKELLA
IEELDYVSVP EELPKGVKSE EDILKKIEKL EKEMWKYAQN WEFEKAAKVR DEIKKLKKLL
GLD
//
