ID A0A161LJM9_9ACTN Unreviewed; 368 AA.
AC A0A161LJM9;
DT 06-JUL-2016, integrated into UniProtKB/TrEMBL.
DT 06-JUL-2016, sequence version 1.
DT 27-MAR-2024, entry version 28.
DE RecName: Full=Beta sliding clamp {ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=PS9374_04855 {ECO:0000313|EMBL:GAT69184.1};
OS Planomonospora sphaerica.
OC Bacteria; Actinomycetota; Actinomycetes; Streptosporangiales;
OC Streptosporangiaceae; Planomonospora.
OX NCBI_TaxID=161355 {ECO:0000313|EMBL:GAT69184.1, ECO:0000313|Proteomes:UP000077701};
RN [1] {ECO:0000313|EMBL:GAT69184.1, ECO:0000313|Proteomes:UP000077701}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 9374 {ECO:0000313|EMBL:GAT69184.1,
RC ECO:0000313|Proteomes:UP000077701};
RA Dohra H., Suzuki T., Inoue Y., Kodani S.;
RT "Draft Genome Sequence of Planomonospora sphaerica JCM9374, a Rare
RT Actinomycete.";
RL Genome Announc. 4:e00779-16(2016).
RN [2] {ECO:0000313|Proteomes:UP000077701}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 9374 {ECO:0000313|Proteomes:UP000077701};
RA Suzuki T., Dohra H., Kodani S.;
RT "Planomonospora sphaerica JCM9374 whole genome shotgun sequence.";
RL Submitted (APR-2016) 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:GAT69184.1}.
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DR EMBL; BDCX01000012; GAT69184.1; -; Genomic_DNA.
DR RefSeq; WP_068900375.1; NZ_BDCX01000012.1.
DR AlphaFoldDB; A0A161LJM9; -.
DR STRING; 161355.PS9374_04855; -.
DR OrthoDB; 468978at2; -.
DR Proteomes; UP000077701; 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:UP000077701};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 1..120
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 133..240
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 256..355
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 368 AA; 39079 MW; 916BB8F3A3E5DB9A CRC64;
MKFRVDRDVL AEAVAWAARV LPARPAIPVL SGLLLEARPE QEDLVLSAFD YDVSARASVE
AEVAEPGRVL IPGRVLAEIT RSLPGKAVEV VADGSEATLT CGSAEFNLRT MPVEDFPTLP
AMPPVIGAIG GGVFASAVGQ VAPAASRDET LPMLTGVRVD ISGEHVAMAA TDRYRIAARE
FDWRPERPDA AAAAVVPARV LVEVARSLRG GEVAVALGDG IAGFESVGRS TTVRLLDEQF
IDYRARLAGD WSIRADVRVA PFVEAIKRIR LVAEPTTAIR LSFGQGQVTI QAGGGEVGRG
TEVLDAELSG GDIQIAFQSQ FLLDGLSGVE SEFVRLNMES PTRPALITEV PGDAVPAFRY
LVMSLRQA
//
