ID A0A323VFB7_9ACTN Unreviewed; 386 AA.
AC A0A323VFB7;
DT 10-OCT-2018, integrated into UniProtKB/TrEMBL.
DT 10-OCT-2018, sequence version 1.
DT 27-MAR-2024, entry version 15.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=DMO24_07465 {ECO:0000313|EMBL:PZA21966.1}, FHX36_003088
GN {ECO:0000313|EMBL:MBB3677353.1};
OS Modestobacter versicolor.
OC Bacteria; Actinomycetota; Actinomycetes; Geodermatophilales;
OC Geodermatophilaceae; Modestobacter.
OX NCBI_TaxID=429133 {ECO:0000313|EMBL:PZA21966.1, ECO:0000313|Proteomes:UP000247602};
RN [1] {ECO:0000313|EMBL:PZA21966.1, ECO:0000313|Proteomes:UP000247602}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CP153-2 {ECO:0000313|EMBL:PZA21966.1,
RC ECO:0000313|Proteomes:UP000247602};
RA Gundlapally S.R.;
RT "Draft genome sequence of Modestobacter versicolor CP153-2.";
RL Submitted (JUN-2018) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:MBB3677353.1, ECO:0000313|Proteomes:UP000580718}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16678 {ECO:0000313|EMBL:MBB3677353.1,
RC ECO:0000313|Proteomes:UP000580718};
RA Klenk H.-P.;
RT "Sequencing the genomes of 1000 actinobacteria strains.";
RL Submitted (AUG-2020) 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}.
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:PZA21966.1}.
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DR EMBL; JACIBU010000001; MBB3677353.1; -; Genomic_DNA.
DR EMBL; QKNV01000055; PZA21966.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A323VFB7; -.
DR OrthoDB; 468978at2; -.
DR Proteomes; UP000247602; Unassembled WGS sequence.
DR Proteomes; UP000580718; 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; 3.10.150.10; DNA Polymerase III, subunit A, domain 2; 3.
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:UP000247602};
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 127..244
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 249..358
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 386 AA; 40766 MW; 4E4EADD50FA2E362 CRC64;
MKFRVAREVL AEAVAWTARS LPPRPSVPVL AGILLEVEGN QLSVSGFDYE VSARSEVDVQ
STESGRTLVP GRLLAEITRA LPPHPVDVVA EGARLAISCG NAKFSLPTLP VEDYPSLPSL
PSTAGTVDSD AFAEAVSQVA VAAGRDDTLP MLTGVRLEIE DDLVTLAATD RYRLAVREFA
WRPETPGLSA AVLVPARTLA DAAKTLTSGP EVTLSLSSGG SGEGILGLSG KDRQTTTRLL
DAEFVKYRAI MPSESSSFAT LPVGLFTDAA KRVALVAERG TPLRCEFTSG QVTLRAGGTD
DEGQAEERCD VEFDGDPLTI GFNPTFLLDG LAAVHTDRAR MDFTTALKPA VLSGVEEPSG
DEGDGGRPAE RAGSYRYLIM PVRLPG
//
