ID A0A2T6DHH4_9BACT Unreviewed; 369 AA.
AC A0A2T6DHH4;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 27-MAR-2024, entry version 15.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN Name=dnaN {ECO:0000313|EMBL:PTY01917.1};
GN ORFNames=DB346_10735 {ECO:0000313|EMBL:PTY01917.1};
OS Verrucomicrobia bacterium LW23.
OC Bacteria; Verrucomicrobiota.
OX NCBI_TaxID=2161867 {ECO:0000313|EMBL:PTY01917.1, ECO:0000313|Proteomes:UP000244158};
RN [1] {ECO:0000313|EMBL:PTY01917.1, ECO:0000313|Proteomes:UP000244158}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LW23 {ECO:0000313|EMBL:PTY01917.1,
RC ECO:0000313|Proteomes:UP000244158};
RA Buenger W., Mueller J., Hurek T., Reinhold-Hurek B.;
RT "Genomic and phenotypic characterization of four novel plant-associated
RT Verrucomicrobia indicate a new subdivision with one cultivated member.";
RL Submitted (MAR-2018) 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:PTY01917.1}.
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DR EMBL; QAZA01000021; PTY01917.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2T6DHH4; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000244158; 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:UP000244158};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 1..117
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 129..242
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 244..362
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 369 AA; 40529 MW; F6600565DD24F3BF CRC64;
MKVILTKEAL VAALGVVANV VSNRSPLPIL GNALIKAEDG KLTIATTDLA IGVRAVMPAE
VVEAGATTLP AKRFFSIIRE LPAPEVTLTV DDKHSATIES GSAYYKIMGM PQEEFPPFPR
LDGTRAFSLK QAQLKDMLRR TAYAISTEES RYVLNGVLLS FKENQLTVVA TDGRRLAMVQ
EPLEFPEESA IDVILPTAAV NELQRVLKGD EPVGISIGQN QIAFDLGHIY MFSKLVDGNY
PEYRRVIPAA ATGRIVLERE LLLSAVRRVA LLANEKSLSV KLSFGNNNLE ISANTPDIGE
AKETLTISYT DRAFAIAFNP DYLMDPLKNL DGDQVFFDFT NEYEPGVLKY NRPFTYVIMP
MRATPSGAK
//
