ID A0A0F7M1I9_9GAMM Unreviewed; 369 AA.
AC A0A0F7M1I9;
DT 22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2015, sequence version 1.
DT 27-MAR-2024, entry version 31.
DE RecName: Full=Beta sliding clamp {ECO:0000256|ARBA:ARBA00021035, ECO:0000256|PIRNR:PIRNR000804};
GN ORFNames=IMCC21906_00431 {ECO:0000313|EMBL:AKH68124.1};
OS Spongiibacter sp. IMCC21906.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC Spongiibacteraceae; Spongiibacter.
OX NCBI_TaxID=1620392 {ECO:0000313|EMBL:AKH68124.1, ECO:0000313|Proteomes:UP000035013};
RN [1] {ECO:0000313|EMBL:AKH68124.1, ECO:0000313|Proteomes:UP000035013}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IMCC21906 {ECO:0000313|EMBL:AKH68124.1,
RC ECO:0000313|Proteomes:UP000035013};
RA Cho J.-C., Yang S.-J., Kang I.;
RT "Complete genome sequence of IMCC21906 belonging to the
RT Gammaproteobacteria.";
RL Submitted (MAY-2015) 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}.
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DR EMBL; CP011477; AKH68124.1; -; Genomic_DNA.
DR RefSeq; WP_047010778.1; NZ_CP011477.1.
DR AlphaFoldDB; A0A0F7M1I9; -.
DR STRING; 1620392.IMCC21906_00431; -.
DR KEGG; spoi:IMCC21906_00431; -.
DR PATRIC; fig|1620392.3.peg.473; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000035013; 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:UP000035013};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000804}.
FT DOMAIN 1..121
FT /note="DNA polymerase III beta sliding clamp N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00712"
FT DOMAIN 132..246
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 249..368
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 369 AA; 40593 MW; FA9337B28D5383F3 CRC64;
MKFSIPRDAL IKPLNLVAGV VERRQTLPVL ANVQIVTDGN ELSLTGTDLE VELIGRVSLE
PSSGAVPGEI TVPAKKLVDI CKALPEGAQV DIQLDEQKLI IKSGRSRFQL STLSASDFPS
VEQGKGGQRF TVKQGDLKRL IEKTNFAMAQ QDVRYYLNGM LFEVESGHLR VVATDGHRLA
MATLPCDINV DQPSQVILPR KGVIELSRLL MNEDQDAEVI VSNNHIRVVT QDFTFTSKLI
DGKFPDYERV LPRGSTKLVL GSRSELKQAF ARTAILSNEK YRGIRIVLSS GNLQIIANNP
EQEEAEETVA VDYQGESLEI GFNVSYLLDV LSAVSGDTVK FSLSDANSSA LIEESESEDC
QYVVMPMRL
//