ID W1Q1D5_ABIDE Unreviewed; 404 AA.
AC W1Q1D5;
DT 19-MAR-2014, integrated into UniProtKB/TrEMBL.
DT 19-MAR-2014, sequence version 1.
DT 27-MAR-2024, entry version 36.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=GCWU000182_001983 {ECO:0000313|EMBL:ESK64796.1};
OS Abiotrophia defectiva ATCC 49176.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Aerococcaceae; Abiotrophia.
OX NCBI_TaxID=592010 {ECO:0000313|EMBL:ESK64796.1, ECO:0000313|Proteomes:UP000019050};
RN [1] {ECO:0000313|EMBL:ESK64796.1, ECO:0000313|Proteomes:UP000019050}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 49176 {ECO:0000313|EMBL:ESK64796.1,
RC ECO:0000313|Proteomes:UP000019050};
RA Weinstock G., Sodergren E., Clifton S., Fulton L., Fulton B., Courtney L.,
RA Fronick C., Harrison M., Strong C., Farmer C., Delahaunty K., Markovic C.,
RA Hall O., Minx P., Tomlinson C., Mitreva M., Nelson J., Hou S., Wollam A.,
RA Pepin K.H., Johnson M., Bhonagiri V., Nash W.E., Warren W., Chinwalla A.,
RA Mardis E.R., Wilson R.K.;
RL Submitted (JUN-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:ESK64796.1}.
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DR EMBL; ACIN03000017; ESK64796.1; -; Genomic_DNA.
DR AlphaFoldDB; W1Q1D5; -.
DR STRING; 592010.GCWU000182_001983; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_2_0_9; -.
DR Proteomes; UP000019050; 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:UP000019050};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 22..147
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 157..272
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 275..387
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 404 AA; 45097 MW; 8E4C3B7A8EE733CC CRC64;
MMKKTIYIYL IIFMNKRSRP TMHFSINRDY FINQLNHVAR AIPGKAAIPV LTGMKLELKS
DRLILTGSDA SISIESVIET SQEAAQLQVT TPGSIVLSAR LFIDIVRKLP TNQVEIQVQD
HYNVQLTSGK AVFTIQGVDS SQYPVLPETD EDKPVTLPGL LFKKLINQTI FSASNQENRP
ILTGLNLSFH DGYLTGVATD SHRLSKRDIP IKDLNPSLKG LNITIPKKTV IELTRILDDE
SNVTFYVMAQ QLVFHFDNLV IYSRLLEGTF PDTSRLIPTT YNTELTVNTQ SFSQALERAA
LLVHVAKSNV VQLKMSQGSV ALLVQGISIG QSTEELSYDS LEGDDLTIAF NPDYMRDAVK
SFGDTTIKLG FISGERPLLL REDKVEEGHN DLIQLLTPIR THHA
//
