ID D3IIA2_9BACT Unreviewed; 375 AA.
AC D3IIA2;
DT 23-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 23-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 59.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN Name=dnaN {ECO:0000313|EMBL:EFC69748.1};
GN ORFNames=HMPREF0670_01071 {ECO:0000313|EMBL:EFC69748.1};
OS Prevotella sp. oral taxon 317 str. F0108.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Prevotellaceae;
OC Prevotella.
OX NCBI_TaxID=575615 {ECO:0000313|EMBL:EFC69748.1, ECO:0000313|Proteomes:UP000003829};
RN [1] {ECO:0000313|EMBL:EFC69748.1, ECO:0000313|Proteomes:UP000003829}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=F0108 {ECO:0000313|EMBL:EFC69748.1,
RC ECO:0000313|Proteomes:UP000003829};
RG The Broad Institute Genome Sequencing Platform;
RA Ward D., Feldgarden M., Earl A., Young S.K., Zeng Q., Koehrsen M.,
RA Alvarado L., Berlin A., Bochicchio J., Borenstein D., Chapman S.B.,
RA Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J., Griggs A.,
RA Gujja S., Heilman E., Heiman D., Hepburn T., Howarth C., Jen D., Larson L.,
RA Lewis B., Mehta T., Park D., Pearson M., Roberts A., Saif S., Shea T.,
RA Shenoy N., Sisk P., Stolte C., Sykes S., Thomson T., Walk T., White J.,
RA Yandava C., Izard J., Baranova O.V., Blanton J.M., Tanner A.C.,
RA Dewhirst F.E., Haas B., Nusbaum C., Birren B.;
RT "The Genome Sequence of Prevotella sp. Oral Taxon 317 strain F0108.";
RL Submitted (NOV-2009) to the EMBL/GenBank/DDBJ databases.
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; GG740072; EFC69748.1; -; Genomic_DNA.
DR RefSeq; WP_009230172.1; NZ_GG740072.1.
DR AlphaFoldDB; D3IIA2; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_4_1_10; -.
DR Proteomes; UP000003829; Unassembled WGS sequence.
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-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:UP000003829};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 1..118
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 132..245
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 248..370
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 375 AA; 41326 MW; 219CB4791DFBC531 CRC64;
MKFSISSSAL SSKLQNLAKT LSAKPSIPIL NNFLFEVVDG VLTLTTSDSE TTMKAALKLD
ESDSNGRFTV PSRTILDATR ELPDQPLHFD INLETMAVQI TYQNGVYNFT AQTAEEYPRN
KELAADAASI QMESAVLLNS IVRSIFATGQ DELRPIMNGI YFDLKEDGLA IVATDGHKLV
KNKNNAIRSD VKRSFVLAKK PASLLRNILT KDATMVEIKF DDRNAEVHFP NGMLSCRLVE
GNYPNYESVI PKDNPNQITL DRKGLVSVLR RVLPFASESS QLIRLHIEQG LIELSSEDID
FATSAKESMV CDYVGIPMNI GFKGSVLGDV LNNLDSDDVV VQLADPSKAA LVLPAVQPEN
EEVLMLIMPM MLNDN
//
