ID UVRB_ECO7I Reviewed; 673 AA.
AC B7NNK9;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 27-MAR-2024, entry version 86.
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};
GN OrderedLocusNames=ECIAI39_0755;
OS Escherichia coli O7:K1 (strain IAI39 / ExPEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585057;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IAI39 / ExPEC;
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
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; CU928164; CAR16892.1; -; Genomic_DNA.
DR RefSeq; WP_000042532.1; NC_011750.1.
DR RefSeq; YP_002406780.1; NC_011750.1.
DR AlphaFoldDB; B7NNK9; -.
DR SMR; B7NNK9; -.
DR STRING; 585057.ECIAI39_0755; -.
DR KEGG; ect:ECIAI39_0755; -.
DR PATRIC; fig|585057.6.peg.798; -.
DR HOGENOM; CLU_009621_2_1_6; -.
DR Proteomes; UP000000749; 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 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; Helicase; Hydrolase; Nucleotide-binding; SOS response.
FT CHAIN 1..673
FT /note="UvrABC system protein B"
FT /id="PRO_1000200545"
FT DOMAIN 26..183
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 431..597
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 633..668
FT /note="UVR"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT REGION 608..627
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 92..115
FT /note="Beta-hairpin"
FT BINDING 39..46
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
SQ SEQUENCE 673 AA; 76212 MW; 2F172045344FDB67 CRC64;
MSKPFKLNSA FKPSGDQPEA IRRLEEGLED GLAHQTLLGV TGSGKTFTIA NVIADLQRPT
MVLAPNKTLA AQLYGEMKEF FPENAVEYFV SYYDYYQPEA YVPSSDTFIE KDASVNEHIE
QMRLSATKAM LERRDVVVVA SVSAIYGLGD PDLYLKMMLH LTVGMIIDQR AILRRLAELQ
YARNDQAFQR GTFRVRGEVI DIFPAESDDI ALRVELFDEE VERLSLFDPL TGQIVSTIPR
FTIYPKTHYV TPRERIVQAM EEIKEELAAR RKVLLENNKL LEEQRLTQRT QFDLEMMNEL
GYCSGIENYS RFLSGRGPGE PPPTLFDYLP ADGLLVVDES HVTIPQIGGM YRGDRARKET
LVEYGFRLPS ALDNRPLKFE EFEALAPQTI YVSATPGNYE LEKSGGDVVD QVVRPTGLLD
PIIEVRPVAT QVDDLLSEIR QRAAINERVL VTTLTKRMAE DLTEYLEEHG ERVRYLHSDI
DTVERMEIIR DLRLGEFDVL VGINLLREGL DMPEVSLVAI LDADKEGFLR SERSLIQTIG
RAARNVNGKA ILYGDKITPS MAKAIGETER RREKQQKYNE EHGITPQGLN KKVVDILALG
QNIAKTKAKG RGKSRPIVEP DNVPMDMSPK ALQQKIHELE GLMMQHAQNL EFEEAAQIRD
QLHQLRDLFI AAS
//
