ID A0A1I7NBG6_9BACT Unreviewed; 677 AA.
AC A0A1I7NBG6;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
DE RecName: Full=UvrABC system protein B {ECO:0000256|ARBA:ARBA00029504, ECO:0000256|HAMAP-Rule:MF_00204};
DE Short=Protein UvrB {ECO:0000256|HAMAP-Rule:MF_00204};
DE AltName: Full=Excinuclease ABC subunit B {ECO:0000256|HAMAP-Rule:MF_00204};
GN Name=uvrB {ECO:0000256|HAMAP-Rule:MF_00204};
GN ORFNames=SAMN05660895_1199 {ECO:0000313|EMBL:SFV31876.1};
OS Thermoflavifilum thermophilum.
OC Bacteria; Bacteroidota; Chitinophagia; Chitinophagales; Chitinophagaceae;
OC Thermoflavifilum.
OX NCBI_TaxID=1393122 {ECO:0000313|EMBL:SFV31876.1, ECO:0000313|Proteomes:UP000199537};
RN [1] {ECO:0000313|Proteomes:UP000199537}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14807 {ECO:0000313|Proteomes:UP000199537};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) 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:0000256|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:0000256|ARBA:ARBA00026033, ECO:0000256|HAMAP-Rule:MF_00204,
CC ECO:0000256|RuleBase:RU003587}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_00204, ECO:0000256|RuleBase:RU003587}.
CC -!- DOMAIN: The beta-hairpin motif is involved in DNA binding.
CC {ECO:0000256|HAMAP-Rule:MF_00204}.
CC -!- SIMILARITY: Belongs to the UvrB family. {ECO:0000256|ARBA:ARBA00008533,
CC ECO:0000256|HAMAP-Rule:MF_00204, ECO:0000256|RuleBase:RU003587}.
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DR EMBL; FPCJ01000001; SFV31876.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I7NBG6; -.
DR STRING; 1393122.SAMN05660895_1199; -.
DR OrthoDB; 9806651at2; -.
DR Proteomes; UP000199537; Unassembled WGS sequence.
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 {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00204}; Coiled coil {ECO:0000256|SAM:Coils};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00204};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW DNA excision {ECO:0000256|ARBA:ARBA00022769, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW Excision nuclease {ECO:0000256|ARBA:ARBA00022881, ECO:0000256|HAMAP-
KW Rule:MF_00204};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00204}; Reference proteome {ECO:0000313|Proteomes:UP000199537};
KW SOS response {ECO:0000256|HAMAP-Rule:MF_00204,
KW ECO:0000256|RuleBase:RU003587}.
FT DOMAIN 24..190
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000259|PROSITE:PS51192"
FT DOMAIN 429..582
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51194"
FT DOMAIN 637..672
FT /note="UVR"
FT /evidence="ECO:0000259|PROSITE:PS50151"
FT COILED 633..660
FT /evidence="ECO:0000256|SAM:Coils"
FT MOTIF 90..113
FT /note="Beta-hairpin"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00204"
FT BINDING 37..44
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00204"
SQ SEQUENCE 677 AA; 77777 MW; 6FB18E0E5FA35F74 CRC64;
MPFKLVSPYP PAGDQPEAIA QLTEGIRRGE KFQTLLGVTG SGKTYTIAHV IQHVQKPTLV
LTHNKTLVAQ LYGEFRQFFP ENAVEYFVSY YDYYQPEAYI PVTDTYIEKD LSINEELDKL
RLKATSSLLS GRRDIIVVAS VSCIYGIGNP AEYERSITRI HKGQQISRSA FLRNLVEALY
NRTTVEFTRG SFRVKGDTVE VYPPYADFGL RIIFFGDEIE SIEQFDLQTG KRLLDMENAA
IFPANLYLAP RDQFQQILQE IQDELAAQVE YFKSQGKYIE AQRLQERVNY DLEMIRELGY
CNGIENYSRF FDRRAPGTRP FCLLDYFPKD YLMVIDESHV TIPQVAGMYG GDRSRKLTLV
EYGFRLPSAL DNRPLNFQEF ESLMNQVIFM SATPGEYELE KCEGVVVEQV VRPTGLLDPP
IEVRPSQNQI DDLLDEIDKR VKKGERVLVA TLTKRMAEEL DTYLKRLQIR SKYIHSEIDT
LERVEILREL RLGKIDVIVG VNLLREGLDL PEVSLVAILD ADKEGFLRNQ TSLTQTAGRA
ARNVNGLVIF YADTITESMQ KTIDETNRRR EKQIRYNQQH GITPRGIQKS VRQILEQTSV
LDIREDKTPA DTELPEQVPL QAVAEPEAEY LSPAELEKRI RTLKKAMEKA ARELDFMEAA
RLRDQLFALQ QKQNARK
//
