ID A0A1V2THT8_9NOCA Unreviewed; 391 AA.
AC A0A1V2THT8;
DT 07-JUN-2017, integrated into UniProtKB/TrEMBL.
DT 07-JUN-2017, sequence version 1.
DT 27-MAR-2024, entry version 21.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=B0T46_09090 {ECO:0000313|EMBL:ONM49076.1};
OS Nocardia donostiensis.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Nocardiaceae;
OC Nocardia.
OX NCBI_TaxID=1538463 {ECO:0000313|EMBL:ONM49076.1, ECO:0000313|Proteomes:UP000188836};
RN [1] {ECO:0000313|EMBL:ONM49076.1, ECO:0000313|Proteomes:UP000188836}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=X1655 {ECO:0000313|EMBL:ONM49076.1,
RC ECO:0000313|Proteomes:UP000188836};
RX PubMed=26914251; DOI=10.1007/s10482-016-0667-8;
RA Ercibengoa M., Bell M., Marimon J.M., Humrighouse B., Klenk H.P.,
RA Potter G., Perez-Trallero E.;
RT "Nocardia donostiensis sp. nov., isolated from human respiratory
RT specimens.";
RL Antonie Van Leeuwenhoek 109:653-660(2016).
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:ONM49076.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; MUMY01000006; ONM49076.1; -; Genomic_DNA.
DR RefSeq; WP_077116077.1; NZ_MUMY01000006.1.
DR AlphaFoldDB; A0A1V2THT8; -.
DR STRING; 1538463.B0T36_16260; -.
DR OrthoDB; 468978at2; -.
DR Proteomes; UP000188836; 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:UP000188836};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 6..123
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 132..252
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 254..364
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 391 AA; 41323 MW; 2E007AB7576F1DDE CRC64;
MELASMKFRV AREDFAESVA WVARSLPSRP PVPVLGGVLL VADEDGLTVS GFDYEVSAQM
RVAAEVAGPG QVLVSGRLLA DITKALSNKP VDVSVDGTRV LISCGSAKFS LPTMPVEDYP
QLPEVPQQSG ELNVEVFAGA VSQVAVAAGR DDTLPMLTGI RVEIAGPQVV LAATDRFRLA
VRHIEWQPTR TDIETAVLIP ARTLSEAAKT LGPSDAPVQL SLGTGSGADG LLGIVNGGRR
TTTRLLDAEF PKFRQLLPKE HTSIATLEVS ALSDAIKRVA LVAERGAQVR LEFSGEGLLL
SAGGDDAGRA EEWLSADFRG EPLTIAFNPG YLTDGLSALH SDRVTFGFTT SSRPAVLLPA
GEEDPQVLDS GAYAALESPY VYLLMPVRLP G
//
