ID UVRB_NEIGO Reviewed; 675 AA.
AC Q50939;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 08-NOV-2023, entry version 113.
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};
OS Neisseria gonorrhoeae.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC Neisseria.
OX NCBI_TaxID=485;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=MS11;
RX PubMed=7721686; DOI=10.1128/jb.177.8.1952-1958.1995;
RA Black C.G., Fyfe J.A.M., Davies J.K.;
RT "A promoter associated with the neisserial repeat can be used to transcribe
RT the uvrB gene from Neisseria gonorrhoeae.";
RL J. Bacteriol. 177:1952-1958(1995).
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; U11547; AAA75358.1; -; Genomic_DNA.
DR PIR; B56262; B56262.
DR RefSeq; WP_003688978.1; NZ_VCDA01000002.1.
DR AlphaFoldDB; Q50939; -.
DR SMR; Q50939; -.
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; 6.10.140.240; -; 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; SOS response.
FT CHAIN 1..675
FT /note="UvrABC system protein B"
FT /id="PRO_0000138414"
FT DOMAIN 32..417
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 436..602
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT DOMAIN 634..669
FT /note="UVR"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
FT MOTIF 98..121
FT /note="Beta-hairpin"
FT BINDING 45..52
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00204"
SQ SEQUENCE 675 AA; 76989 MW; 7F1756AA3E0A9CF5 CRC64;
MEVIRYPNSP FKLHQPFPPA GDQPTAIAGL LEGLSDGLAY QTLLGVTGSG KTYTMANVIA
QSGRPAIIMA HNKTLAAQLY AEMREFFPEN AVEYFVSYYD YYQPEAYVPS RDLFIEKDSA
INEHIEQMRL SATKNLMTRD DVIIVATVSA IYGIGDPTEY QQMVLSVKEG DTIEQRDIIA
TLVSMQYERG DLDFKRGSFR VRGDVIDVYP AESSENALRI SLFDDEIDRL DMFDPLSGSL
HQRVGRYTVF PSSHYVTPRD TVLRACESIK EELRERIEFF AREQRPVEQQ RIEQRTRFDL
EMLYEMGFCK GIENYSRHFS GKKEGEPPPT LMDYLPDNAI MFIDESHVTV TQIGGMYKGD
ASRKQNLVDY GFRLPSARDN RPLKFHEFEK VMPQTVFVSA TPAKYEEEHA GQVVEQVVRP
TGLVDPQIII RPVATQVDDL MSEINDRIQK GERVLVTTLT KRMAEQLTDY YSELGIKVRY
LHSDIDTVER VEIIRDLRLG LFDVLVGINL LREGLDIPEV SLVAILDADK EGFLRSHRSL
IQTIGRAARN VNGVAILYAD KITDSMKAAV DETERRREKQ IKFNEEHGIV PQQIKKQVKD
IIDGVYHEED SGKGRRQGKN KVKVGEIHNE EDAIKEIAKL EKAMQQAARD LQFEEAAVLR
DRIRNIKENL LFGAE
//
