UVRB_THESQ
ID UVRB_THESQ Reviewed; 664 AA.
AC B1LAR2;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 29-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 84.
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=TRQ2_1063;
OS Thermotoga sp. (strain RQ2).
OC Bacteria; Thermotogae; Thermotogales; Thermotogaceae; Thermotoga;
OC unclassified Thermotoga.
OX NCBI_TaxID=126740;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RQ2;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Bruce D.B., Goodwin L., Pitluck S., Saunders E., Brettin T.,
RA Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Nelson K., Gogarten J.P., Noll K.,
RA Richardson P.;
RT "Complete sequence of Thermotoga sp. RQ2.";
RL Submitted (MAR-2008) to the EMBL/GenBank/DDBJ databases.
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; CP000969; ACB09410.1; -; Genomic_DNA.
DR RefSeq; WP_011943596.1; NC_010483.1.
DR AlphaFoldDB; B1LAR2; -.
DR SMR; B1LAR2; -.
DR EnsemblBacteria; ACB09410; ACB09410; TRQ2_1063.
DR KEGG; trq:TRQ2_1063; -.
DR HOGENOM; CLU_009621_2_1_0; -.
DR OMA; EYVDRMV; -.
DR OrthoDB; 95696at2; -.
DR Proteomes; UP000001687; 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:0004386; F:helicase activity; IEA:UniProtKB-KW.
DR GO; GO:0006289; P:nucleotide-excision repair; IEA:UniProtKB-UniRule.
DR GO; GO:0009432; P:SOS response; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.300; -; 3.
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 PANTHER; PTHR24029; PTHR24029; 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; SSF46600; 1.
DR SUPFAM; SSF52540; SSF52540; 2.
DR TIGRFAMs; TIGR00631; uvrb; 1.
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; Helicase; Hydrolase; Nucleotide-binding; SOS response.
FT CHAIN 1..664
FT /note="UvrABC system protein B"
FT /id="PRO_1000099574"
FT DOMAIN 23..180
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 429..588
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 622..657
FT /note="UVR"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT MOTIF 89..112
FT /note="Beta-hairpin"
FT BINDING 36..43
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
SQ SEQUENCE 664 AA; 76640 MW; D257A067F4F62F4D CRC64;
MFKLVSEFEP TGDQPQAIEK LVEGLNRGMR FQTLLGVTGS GKTFTMANVI ARVNRPALVI
SPNKTLAAQL YQEFKAFFPE NRVEFFISYY DYYQPEAYIP TKDLYIEKNA DINDVIVRMR
MSTLKSVRTR RDVVVVASVS CIYATGDPND FDRMNINLAV GDRIDVLELA ERLARIGYQR
TEDVSLSGCF RLKGDTVEIY PTYQDEGIRI EFFGDEVDSI TLIDRFNRTT LEHLDKIIIY
PAVEFITTEE KLKRAVESIR EELNERLSEL KKQGKILEYE RLKQRTLNDI ELLETMGYCP
GIENYSRHFD GRKPGEPPYT LLDYFDKDFI VFIDESHITV PQLRAMYNGD RSRKKNLVEY
GFRLPSAYDN RPLTFEEFLK KTGQIIFVSA TPGDFELSIS EQVVEQIIRP TGLVDPEVEV
RPTAGQVDDL VNEIVKVKER GERALVTVLT KKTAELLSEH LTELGIRSLY LHSELDAIER
VEVLKKLRRG DVDVVVGVNL LREGLDLPEV SLVAIMDADV EGFLRSETTL IQIIGRTARN
INGKVIMYAD RITNAMKRAI EETNRRRRIQ LEYNKKHGIT PRSVIKPLEI EVFEQFMVKE
EPERYGDTVK NIFEMKKTLS PEEYMAVLEE EMYRAASELR YEDAAALRDE LFRIREEIKK
KKGL
