ID A1WWD9_HALHL Unreviewed; 366 AA.
AC A1WWD9;
DT 06-FEB-2007, integrated into UniProtKB/TrEMBL.
DT 06-FEB-2007, sequence version 1.
DT 27-MAR-2024, entry version 95.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN OrderedLocusNames=Hhal_1226 {ECO:0000313|EMBL:ABM62001.1};
OS Halorhodospira halophila (strain DSM 244 / SL1) (Ectothiorhodospira
OS halophila (strain DSM 244 / SL1)).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales;
OC Ectothiorhodospiraceae; Halorhodospira.
OX NCBI_TaxID=349124 {ECO:0000313|EMBL:ABM62001.1, ECO:0000313|Proteomes:UP000000647};
RN [1] {ECO:0000313|Proteomes:UP000000647}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 244 / SL1 {ECO:0000313|Proteomes:UP000000647};
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Saunders E., Brettin T., Bruce D., Han C., Tapia R., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Hoff W.,
RA Richardson P.;
RT "Complete sequence of Halorhodospira halophila SL1.";
RL Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ABM62001.1, ECO:0000313|Proteomes:UP000000647}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 244 / SL1 {ECO:0000313|Proteomes:UP000000647};
RX PubMed=23991253; DOI=10.4056/sigs.3677284;
RA Challacombe J.F., Majid S., Deole R., Brettin T.S., Bruce D., Delano S.F.,
RA Detter J.C., Gleasner C.D., Han C.S., Misra M., Reitenga K.G.,
RA Mikhailova N., Woyke T., Pitluck S., Nolan M., Land M.L., Saunders E.,
RA Tapia R., Lapidus A., Ivanova N., Hoff W.D.;
RT "Complete genome sequence of Halorhodospira halophila SL1.";
RL Stand. Genomic Sci. 8:206-214(2013).
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}.
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DR EMBL; CP000544; ABM62001.1; -; Genomic_DNA.
DR RefSeq; WP_011814024.1; NC_008789.1.
DR AlphaFoldDB; A1WWD9; -.
DR STRING; 349124.Hhal_1226; -.
DR KEGG; hha:Hhal_1226; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_4_2_6; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000000647; 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:UP000000647};
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 129..243
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 246..365
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 366 AA; 40613 MW; 5B983CC4B25F0C2B CRC64;
MRFEVQREPL LAALQSIVGV VERRQTLPVL GNIRVEARSQ QLQLTATDLE VELVAYLEAN
TKDEGVITLP ARKWLDICRN LPEGASISIE ANQDRATLRA ASSRFSLATL PADEFPEVES
IGDTEAVEIP RGELRRLIER THFSMAQHDV RYYLNGLLLE LTGSGARAVA TDGHRLALAE
SDSPVQVAQP RQVIVPRKGV QELLRLLDDA DEPATLEFGT NHVRVTLQSV RLTSKLIDGV
FPDYNRVIPQ DGDKHVLIDR QYLRQALTRV AILSNEKYRG IRFAVEGDTL RIGSHNPEQE
EAEEELGIEY GGEAVELGFN ANYLLDALGA LDTERVQVTL TDASSSGLIR AEGSDNARYV
VMPMRL
//
