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Database: UniProt
Entry: I0KD47_9BACT
LinkDB: I0KD47_9BACT
Original site: I0KD47_9BACT 
ID   I0KD47_9BACT            Unreviewed;       373 AA.
AC   I0KD47;
DT   13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT   13-JUN-2012, sequence version 1.
DT   24-JAN-2024, entry version 53.
DE   RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN   Name=dnaN3 {ECO:0000313|EMBL:CCH02050.1};
GN   ORFNames=FAES_4050 {ECO:0000313|EMBL:CCH02050.1};
OS   Fibrella aestuarina BUZ 2.
OC   Bacteria; Bacteroidota; Cytophagia; Cytophagales; Spirosomataceae;
OC   Fibrella.
OX   NCBI_TaxID=1166018 {ECO:0000313|EMBL:CCH02050.1, ECO:0000313|Proteomes:UP000011058};
RN   [1] {ECO:0000313|EMBL:CCH02050.1, ECO:0000313|Proteomes:UP000011058}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BUZ 2T {ECO:0000313|Proteomes:UP000011058};
RX   PubMed=22689241; DOI=10.1128/JB.00550-12;
RA   Filippini M., Qi W., Blom J., Goesmann A., Smits T.H., Bagheri H.C.;
RT   "Genome Sequence of Fibrella aestuarina BUZ 2T, a Filamentous Marine
RT   Bacterium.";
RL   J. Bacteriol. 194:3555-3555(2012).
CC   -!- FUNCTION: Confers DNA tethering and processivity to DNA polymerases and
CC       other proteins. Acts as a clamp, forming a ring around DNA (a reaction
CC       catalyzed by the clamp-loading complex) which diffuses in an ATP-
CC       independent manner freely and bidirectionally along dsDNA. Initially
CC       characterized for its ability to contact the catalytic subunit of DNA
CC       polymerase III (Pol III), a complex, multichain enzyme responsible for
CC       most of the replicative synthesis in bacteria; Pol III exhibits 3'-5'
CC       exonuclease proofreading activity. The beta chain is required for
CC       initiation of replication as well as for processivity of DNA
CC       replication. {ECO:0000256|PIRNR:PIRNR000804}.
CC   -!- SUBUNIT: Forms a ring-shaped head-to-tail homodimer around DNA.
CC       {ECO:0000256|PIRNR:PIRNR000804}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC       ECO:0000256|PIRNR:PIRNR000804}.
CC   -!- SIMILARITY: Belongs to the beta sliding clamp family.
CC       {ECO:0000256|ARBA:ARBA00010752, ECO:0000256|PIRNR:PIRNR000804}.
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DR   EMBL; HE796683; CCH02050.1; -; Genomic_DNA.
DR   RefSeq; WP_015333149.1; NC_020054.1.
DR   AlphaFoldDB; I0KD47; -.
DR   STRING; 1166018.FAES_4050; -.
DR   KEGG; fae:FAES_4050; -.
DR   PATRIC; fig|1166018.3.peg.1001; -.
DR   eggNOG; COG0592; Bacteria.
DR   HOGENOM; CLU_038149_4_1_10; -.
DR   OrthoDB; 8421503at2; -.
DR   Proteomes; UP000011058; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0009360; C:DNA polymerase III complex; IEA:InterPro.
DR   GO; GO:0008408; F:3'-5' exonuclease activity; IEA:InterPro.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-UniRule.
DR   CDD; cd00140; beta_clamp; 1.
DR   Gene3D; 3.70.10.10; -; 1.
DR   Gene3D; 3.10.150.10; DNA Polymerase III, subunit A, domain 2; 1.
DR   InterPro; IPR046938; DNA_clamp_sf.
DR   InterPro; IPR001001; DNA_polIII_beta.
DR   InterPro; IPR022635; DNA_polIII_beta_C.
DR   InterPro; IPR022637; DNA_polIII_beta_cen.
DR   InterPro; IPR022634; DNA_polIII_beta_N.
DR   NCBIfam; TIGR00663; dnan; 1.
DR   PANTHER; PTHR30478:SF0; BETA SLIDING CLAMP; 1.
DR   PANTHER; PTHR30478; DNA POLYMERASE III SUBUNIT BETA; 1.
DR   Pfam; PF00712; DNA_pol3_beta; 1.
DR   Pfam; PF02767; DNA_pol3_beta_2; 1.
DR   Pfam; PF02768; DNA_pol3_beta_3; 1.
DR   PIRSF; PIRSF000804; DNA_pol_III_b; 1.
DR   SMART; SM00480; POL3Bc; 1.
DR   SUPFAM; SSF55979; DNA clamp; 3.
PE   3: Inferred from homology;
KW   Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|PIRNR:PIRNR000804};
KW   DNA replication {ECO:0000256|ARBA:ARBA00022705,
KW   ECO:0000256|PIRNR:PIRNR000804};
KW   DNA-binding {ECO:0000256|ARBA:ARBA00023125};
KW   DNA-directed DNA polymerase {ECO:0000256|ARBA:ARBA00022932,
KW   ECO:0000256|PIRNR:PIRNR000804};
KW   Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW   ECO:0000256|PIRNR:PIRNR000804};
KW   Reference proteome {ECO:0000313|Proteomes:UP000011058};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT   DOMAIN          1..120
FT                   /note="DNA polymerase III beta sliding clamp N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF00712"
FT   DOMAIN          130..242
FT                   /note="DNA polymerase III beta sliding clamp central"
FT                   /evidence="ECO:0000259|Pfam:PF02767"
FT   DOMAIN          246..362
FT                   /note="DNA polymerase III beta sliding clamp C-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF02768"
SQ   SEQUENCE   373 AA;  40963 MW;  84BE922094049830 CRC64;
     MKFVVSSAVL LKNLLNINGV INANPIVPIL ENFLFQIDNG TLTVTASDLQ TTMTTQVPID
     SADSGAIAIP AKLLLDTLRS LPEQPITIKV NTDTFGSEIQ TDNGRYKLSG ENPIDYPKIP
     DVNKKQSVEL SSDALMSAIN HTAFATSSDD LRPAMTGVYL QLNSDNATFV ATDGHRLIRY
     RRTDIQTAES TTIILPRKAV SMLKNALPEG VPVTVEMSQA NASFTFSSIK LICRLIDERF
     PDYENAIPTN NSNVLTIGRA DLLNSLKRIM IYANRTTHQI RLSMKANSLV ISAEDLDYSN
     EANEKLLCEY DGAEMDIGFN AKLLSEMLSN LSSKMISLEM SAPNRAGLII PADKDEHEDI
     LMLAMPVMLN TYA
//
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