UVRB_SYNJB
ID UVRB_SYNJB Reviewed; 695 AA.
AC Q2JN87;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 07-MAR-2006, sequence version 1.
DT 03-AUG-2022, entry version 95.
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=CYB_0807;
OS Synechococcus sp. (strain JA-2-3B'a(2-13)) (Cyanobacteria bacterium
OS Yellowstone B-Prime).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC unclassified Synechococcus.
OX NCBI_TaxID=321332;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JA-2-3B'a(2-13);
RX PubMed=18059494; DOI=10.1038/ismej.2007.46;
RA Bhaya D., Grossman A.R., Steunou A.-S., Khuri N., Cohan F.M., Hamamura N.,
RA Melendrez M.C., Bateson M.M., Ward D.M., Heidelberg J.F.;
RT "Population level functional diversity in a microbial community revealed by
RT comparative genomic and metagenomic analyses.";
RL ISME J. 1:703-713(2007).
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; CP000240; ABD01788.1; -; Genomic_DNA.
DR RefSeq; WP_011432445.1; NC_007776.1.
DR AlphaFoldDB; Q2JN87; -.
DR SMR; Q2JN87; -.
DR STRING; 321332.CYB_0807; -.
DR PRIDE; Q2JN87; -.
DR KEGG; cyb:CYB_0807; -.
DR eggNOG; COG0556; Bacteria.
DR HOGENOM; CLU_009621_2_1_3; -.
DR OMA; EYVDRMV; -.
DR OrthoDB; 95696at2; -.
DR Proteomes; UP000001938; 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 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;
KW Reference proteome; SOS response.
FT CHAIN 1..695
FT /note="UvrABC system protein B"
FT /id="PRO_1000077935"
FT DOMAIN 25..176
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 454..617
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 652..687
FT /note="UVR"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT MOTIF 91..114
FT /note="Beta-hairpin"
FT BINDING 38..45
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
SQ SEQUENCE 695 AA; 79245 MW; 484E2736DD104598 CRC64;
MSEFQLVSPY QPTGDQPKAI AGLVKSISEG HRFQTLLGAT GTGKTFTIAH TIQQVGRPTL
VMAHNKTLAA QLCNELRELF PHNAVEYFIS YYDYYQPEAY VPSTDTYIAK SSSINDEIDM
LRHSATRSLF ERRDVIVVAS VSCIYGLGMP EEYLKASIPF KVGQEINQRD VLRDLASIQY
ERNDLELVRG RFRLKGDVLE IVPAYEDRVI RIEFFGDEIE AIRLIDPVTG EILNSLSALR
VYPARHFVTP EAQLERAILN IEQELEEQLA LFRKEGKLLE AQRLEQRTRY DLEMLREVGY
CNGIENYSRH LTGRKAGEPP ACLVDYFKAD DWLLVVDESH VTVPQIRGMY NGDRARKQVL
VDHGFRLPSA LDNRPLKAEE FWAKVHQCIF VSATPGNWEL EQSEAQFETR VEDGKTLKFY
VQGSGRVIEQ VIRPTGVVDP EVHVRPTAGQ VDDLLGEIYL RLERSQLGPA ERVIVTTLTK
RMAEDLTEYL QERGIRVRYL HSEITSIERI EILQDFREGA FDVLVGVNLL REGLDLPEVS
LVAILDADKE GFLRAERSLI QMIGRAARNV RGMVVMYADT MTSSMARAIA ETQRRREIQL
QYNRQHNITP KPIVKKNSNA ILSFLAISRK LNDPDLEKAF QAAQEIPLSE IPELIGQLEL
KMKEAAKNLE FEEAAQLRDR IKKLRQRLLG HPQGI
