ID G5GKD5_9FIRM Unreviewed; 370 AA.
AC G5GKD5;
DT 25-JAN-2012, integrated into UniProtKB/TrEMBL.
DT 25-JAN-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=HMPREF9333_02026 {ECO:0000313|EMBL:EHI54825.1};
OS Johnsonella ignava ATCC 51276.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Lachnospiraceae;
OC Johnsonella.
OX NCBI_TaxID=679200 {ECO:0000313|EMBL:EHI54825.1, ECO:0000313|Proteomes:UP000003011};
RN [1] {ECO:0000313|EMBL:EHI54825.1, ECO:0000313|Proteomes:UP000003011}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51276 {ECO:0000313|EMBL:EHI54825.1,
RC ECO:0000313|Proteomes:UP000003011};
RG The Broad Institute Genome Sequencing Platform;
RA Earl A., Ward D., Feldgarden M., Gevers D., Izard J., Blanton J.M.,
RA Baranova O.V., Dewhirst F.E., Young S.K., Zeng Q., Gargeya S.,
RA Fitzgerald M., Haas B., Abouelleil A., Alvarado L., Arachchi H.M.,
RA Berlin A., Brown A., Chapman S.B., Chen Z., Dunbar C., Freedman E.,
RA Gearin G., Gellesch M., Goldberg J., Griggs A., Gujja S., Heiman D.,
RA Howarth C., Larson L., Lui A., MacDonald P.J.P., Montmayeur A., Murphy C.,
RA Neiman D., Pearson M., Priest M., Roberts A., Saif S., Shea T., Shenoy N.,
RA Sisk P., Stolte C., Sykes S., Wortman J., Nusbaum C., Birren B.;
RT "The Genome Sequence of Johnsonella ignava ATCC 51276.";
RL Submitted (AUG-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 -!- 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:EHI54825.1}.
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DR EMBL; ACZL01000037; EHI54825.1; -; Genomic_DNA.
DR RefSeq; WP_005541903.1; NZ_JH378838.1.
DR AlphaFoldDB; G5GKD5; -.
DR STRING; 679200.HMPREF9333_02026; -.
DR PATRIC; fig|679200.3.peg.2135; -.
DR eggNOG; COG0592; Bacteria.
DR HOGENOM; CLU_038149_2_1_9; -.
DR OrthoDB; 8421503at2; -.
DR Proteomes; UP000003011; 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; 2.
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:UP000003011};
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..244
FT /note="DNA polymerase III beta sliding clamp central"
FT /evidence="ECO:0000259|Pfam:PF02767"
FT DOMAIN 253..365
FT /note="DNA polymerase III beta sliding clamp C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02768"
SQ SEQUENCE 370 AA; 42017 MW; 6C22DB5D60BEA1D9 CRC64;
MKLNFEREKL LNALSVVSKA IPGRTTNDIL ECALFNITDE GIIISANNNE LGIETKIDGI
SHGFGKAAID LKLMLDIVRK LDFPDGRINI KIDDENFITT ISSGKSVFKI QARNGEEFNY
LPDININNSV SISQFALKEV IKQTVFAANV NDTNKMTGGE LIELDENMLK FVALDGYRVS
IRHIMLNEGF KNDKCVIPAK NLIEIGRIIE GDSEKKITIY FSDNHVMFKY DTTSVISRIM
TGEYFDLKYM LSSDYETKVR LSRLSLLNSI DRALVFIREN NNKPLIFEIS DETLKLRMES
IYGSMNDEIE CDKSGNNIMI AFNPKYFIDA LKAVDDEFVD IYMTNSRSPC FIRDANGMYI
YLILPVNFVA
//
