ID E1IH81_9CHLR Unreviewed; 377 AA.
AC E1IH81;
DT 30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT 30-NOV-2010, sequence version 1.
DT 27-MAR-2024, entry version 56.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=OSCT_2682 {ECO:0000313|EMBL:EFO79556.1};
OS Oscillochloris trichoides DG-6.
OC Bacteria; Chloroflexota; Chloroflexia; Chloroflexales; Chloroflexineae;
OC Oscillochloridaceae; Oscillochloris.
OX NCBI_TaxID=765420 {ECO:0000313|EMBL:EFO79556.1, ECO:0000313|Proteomes:UP000054010};
RN [1] {ECO:0000313|EMBL:EFO79556.1, ECO:0000313|Proteomes:UP000054010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DG-6 {ECO:0000313|EMBL:EFO79556.1,
RC ECO:0000313|Proteomes:UP000054010};
RX PubMed=21037015; DOI=10.1128/JB.00931-10;
RA Kuznetsov B.B., Ivanovsky R.N., Keppen O.I., Sukhacheva M.V.,
RA Bumazhkin B.K., Patutina E.O., Beletsky A.V., Mardanov A.V., Baslerov R.V.,
RA Panteleeva A.N., Kolganova T.V., Ravin N.V., Skryabin K.G.;
RT "Draft genome sequence of the anoxygenic filamentous phototrophic bacterium
RT Oscillochloris trichoides subsp. DG-6.";
RL J. Bacteriol. 193:321-322(2011).
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}.
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:EFO79556.1}.
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DR EMBL; ADVR01000112; EFO79556.1; -; Genomic_DNA.
DR RefSeq; WP_006563245.1; NZ_GL501404.1.
DR AlphaFoldDB; E1IH81; -.
DR STRING; 765420.OSCT_2682; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_4_1_0; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000054010; 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:UP000054010};
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 131..247
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 250..374
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 377 AA; 39908 MW; 1C0E7B097349ECE0 CRC64;
MKLTCLQENL KRGLATVSHA VAGKSTLPVL SNVLLATDGG RLKLAATNLD VGITHWIGAQ
VQEEGAITVP AKLLADVIGG LPNDRVTLTL DARTQTVKVE CARYTSNIKG IEAEEFPIIP
TVSDRAPAVS LSPATLREAI DQVAFAAASD DTRPVLAGVL VRLRENRLTF AAADGFRLAT
RVVQLPEAVA QPQEFIVPAR SLVELARIAA DSEGQISLTM SPSGGQALFH TENTELVSRL
IDGKFPDFER IIPSQYLTRS ILDTAELAKA VKLASFFANP SQNVVKLTLE PGGELGPGRL
VISANAAEVG DNTGEIDGMI HGEGGQIALN VKYLADAIAA IKTAQVALET QGSQNPGVFK
PVGQEGYVHI VMPMSLR
//
