ID H5Y121_9FIRM Unreviewed; 367 AA.
AC H5Y121;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 51.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=DesyoDRAFT_0003 {ECO:0000313|EMBL:EHQ87241.1};
OS Desulfosporosinus youngiae DSM 17734.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Desulfitobacteriaceae;
OC Desulfosporosinus.
OX NCBI_TaxID=768710 {ECO:0000313|EMBL:EHQ87241.1, ECO:0000313|Proteomes:UP000005104};
RN [1] {ECO:0000313|EMBL:EHQ87241.1, ECO:0000313|Proteomes:UP000005104}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17734 {ECO:0000313|EMBL:EHQ87241.1,
RC ECO:0000313|Proteomes:UP000005104};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Ovchinnikova G., Lu M., Land M.L., Hauser L., Pester M.,
RA Spring S., Ollivier B., Rattei T., Klenk H.-P., Wagner M., Loy A.,
RA Woyke T.J.;
RT "The Noncontiguous Finished genome of Desulfosporosinus youngiae DSM
RT 17734.";
RL Submitted (NOV-2011) 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 ---------------------------------------------------------------------------
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; CM001441; EHQ87241.1; -; Genomic_DNA.
DR RefSeq; WP_007777826.1; NZ_CM001441.1.
DR AlphaFoldDB; H5Y121; -.
DR STRING; 768710.DesyoDRAFT_0003; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_2_1_9; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000005104; Chromosome.
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:UP000005104};
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 128..242
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 244..365
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 367 AA; 41376 MW; 0AA7E3E62766358C CRC64;
MKIFCSKDAL LSGVNAVQRA VSNKNPLPVL QGILIQAENQ SLQFAATDLE IGIRCDVPAQ
VTEEGTMIVP AKLFTEVVRK LPDTTISLEE RDQAITICYH QSKIVLNGYD PEEFPLLPDL
IEPLSFSLPT MIFKNMIRQT IFSCAAEENR PVFNGILLQI ENSTIRLVAT DTHRLAYIIS
EITNSEETKF SGIIPSKTLS EIYRLLRDED EDLMISYSNN QVVFQFGSIY LVSRLIEGQF
PNYKQVIPQT CETKVYLAVR EFLDAVERAS LLSRDKSSAN IVRINVENNE LRIDQTTELG
KISEQISVEM EGKDVRIAFN AKFLIDALKV IDSERILFEL SGPFSPGVMR PSDNPNYIYL
VLPVRTS
//
