ID A0A0R2DLB4_9LACO Unreviewed; 359 AA.
AC A0A0R2DLB4;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 24-JAN-2024, entry version 26.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=FC86_GL001232 {ECO:0000313|EMBL:KRN04873.1};
OS Holzapfeliella floricola DSM 23037 = JCM 16512.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC Holzapfeliella.
OX NCBI_TaxID=1423744 {ECO:0000313|EMBL:KRN04873.1, ECO:0000313|Proteomes:UP000051378};
RN [1] {ECO:0000313|EMBL:KRN04873.1, ECO:0000313|Proteomes:UP000051378}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 23037 {ECO:0000313|EMBL:KRN04873.1,
RC ECO:0000313|Proteomes:UP000051378};
RX PubMed=26415554; DOI=10.1038/ncomms9322;
RA Sun Z., Harris H.M., McCann A., Guo C., Argimon S., Zhang W., Yang X.,
RA Jeffery I.B., Cooney J.C., Kagawa T.F., Liu W., Song Y., Salvetti E.,
RA Wrobel A., Rasinkangas P., Parkhill J., Rea M.C., O'Sullivan O., Ritari J.,
RA Douillard F.P., Paul Ross R., Yang R., Briner A.E., Felis G.E.,
RA de Vos W.M., Barrangou R., Klaenhammer T.R., Caufield P.W., Cui Y.,
RA Zhang H., O'Toole P.W.;
RT "Expanding the biotechnology potential of lactobacilli through comparative
RT genomics of 213 strains and associated genera.";
RL Nat. Commun. 6:8322-8322(2015).
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:KRN04873.1}.
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DR EMBL; AYZL01000006; KRN04873.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0R2DLB4; -.
DR STRING; 1423744.FC86_GL001232; -.
DR PATRIC; fig|1423744.4.peg.1263; -.
DR Proteomes; UP000051378; 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-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:UP000051378};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 2..106
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 116..230
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 233..357
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 359 AA; 40158 MW; 2AC0433D90D09E44 CRC64;
MRAISSKTTI PILTGIKLEL STEGLILTGS NSDISIKSTV IKDTELQIQS EGNIVLPARF
FSEIVKKLPE SIFTFEVKEN LQTVIKSGSS EFLINGLDAD NYPRLPQVSK NLQFELNGKM
LRNLINQTNF AVSTQESRPI LTGVHFVISN NQVKAVATDS HRLSQRILQI ENGPDNILDF
IIPGKSLTEL SRILSDVDDN IQIQMSENQI LFTIGNLSFY SRLLEGTYPE TDRLLPDSST
TDITFNSSKI FSALERASLL THESRNNVVR LVINPELHQV VLYGNSPEVG NVEEILNVDT
LVGESLEISF NPDYLKSALR AFKTDQITMK FTQPLRPFTV VPKENDGQFV QLITPVRTF
//