ID U2WJV9_9FIRM Unreviewed; 370 AA.
AC U2WJV9;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 27-MAR-2024, entry version 44.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=HMPREF1985_00182 {ECO:0000313|EMBL:ERL25456.1};
OS Mitsuokella sp. oral taxon 131 str. W9106.
OC Bacteria; Bacillota; Negativicutes; Selenomonadales; Selenomonadaceae;
OC Mitsuokella.
OX NCBI_TaxID=1321781 {ECO:0000313|EMBL:ERL25456.1, ECO:0000313|Proteomes:UP000016614};
RN [1] {ECO:0000313|EMBL:ERL25456.1, ECO:0000313|Proteomes:UP000016614}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=W9106 {ECO:0000313|EMBL:ERL25456.1,
RC ECO:0000313|Proteomes:UP000016614};
RA Weinstock G., Sodergren E., Wylie T., Fulton L., Fulton R., Fronick C.,
RA O'Laughlin M., Godfrey J., Miner T., Herter B., Appelbaum E., Cordes M.,
RA Lek S., Wollam A., Pepin K.H., Palsikar V.B., Mitreva M., Wilson R.K.;
RL Submitted (AUG-2013) 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|ARBA:ARBA00002266,
CC 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ERL25456.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AWVT01000002; ERL25456.1; -; Genomic_DNA.
DR RefSeq; WP_021771831.1; NZ_KI273060.1.
DR AlphaFoldDB; U2WJV9; -.
DR STRING; 1321781.HMPREF1985_00182; -.
DR PATRIC; fig|1321781.3.peg.174; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_2_1_9; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000016614; 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:UP000016614};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 1..119
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 130..244
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 247..367
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 370 AA; 41270 MW; A3F1FC484E009BA0 CRC64;
MKIQCLKSEL ASALQIVSKA VAVKPQTPIL SGIYLKASEG LLELQATNYE IGIIVRIVAD
VEEAGEIAIS GRYFGEVIRR LPGDNVKLSF NREESILHIQ SNQSNFTLVS MNPAEFPTVK
ELDGDLKFTV KDNVLRSLIK KTVFACATDE GRPVFTGCSL DIQETKLTMA ATNTHRLAVK
YEMFEQRIGK IKIIVPSRTL SELLHNMTSE LPTDVTVTCS YNRISFQFDH FFMTSRLIEG
QFPDYNRVIP ASFDTHVRLD TAAFSGAVDR VSLISRAGEY NVIKLEFANN LLHITSHNPD
IGKAEETIVA EIEGPDITIA FNAQYIIDVL KTIETKSCRI DLGQPLTPIA VREAEDESFI
YIVTPVRTQH
//
