ID   PCNA2_SULAC             Reviewed;         245 AA.
AC   Q4J9A8;
DT   27-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   02-AUG-2005, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=DNA polymerase sliding clamp 2 {ECO:0000255|HAMAP-Rule:MF_00317};
DE   AltName: Full=Proliferating cell nuclear antigen homolog 2 {ECO:0000255|HAMAP-Rule:MF_00317};
DE            Short=PCNA 2 {ECO:0000255|HAMAP-Rule:MF_00317};
GN   Name=pcn2 {ECO:0000255|HAMAP-Rule:MF_00317}; OrderedLocusNames=Saci_1280;
OS   Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC
OS   15157 / NCIMB 11770).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfolobus.
OX   NCBI_TaxID=330779;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770;
RX   PubMed=15995215; DOI=10.1128/jb.187.14.4992-4999.2005;
RA   Chen L., Bruegger K., Skovgaard M., Redder P., She Q., Torarinsson E.,
RA   Greve B., Awayez M., Zibat A., Klenk H.-P., Garrett R.A.;
RT   "The genome of Sulfolobus acidocaldarius, a model organism of the
RT   Crenarchaeota.";
RL   J. Bacteriol. 187:4992-4999(2005).
CC   -!- FUNCTION: Sliding clamp subunit that acts as a moving platform for DNA
CC       processing. Responsible for tethering the catalytic subunit of DNA
CC       polymerase and other proteins to DNA during high-speed replication.
CC       {ECO:0000255|HAMAP-Rule:MF_00317}.
CC   -!- SUBUNIT: Homotrimer. The subunits circularize to form a toroid; DNA
CC       passes through its center. Replication factor C (RFC) is required to
CC       load the toroid on the DNA. {ECO:0000255|HAMAP-Rule:MF_00317}.
CC   -!- SIMILARITY: Belongs to the PCNA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00317}.
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DR   EMBL; CP000077; AAY80622.1; -; Genomic_DNA.
DR   RefSeq; WP_011278124.1; NC_007181.1.
DR   AlphaFoldDB; Q4J9A8; -.
DR   SMR; Q4J9A8; -.
DR   STRING; 330779.Saci_1280; -.
DR   EnsemblBacteria; AAY80622; AAY80622; Saci_1280.
DR   GeneID; 3473081; -.
DR   KEGG; sai:Saci_1280; -.
DR   PATRIC; fig|330779.12.peg.1238; -.
DR   eggNOG; arCOG00488; Archaea.
DR   HOGENOM; CLU_043978_1_1_2; -.
DR   OMA; KERTADY; -.
DR   Proteomes; UP000001018; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030337; F:DNA polymerase processivity factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR   GO; GO:0006275; P:regulation of DNA replication; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00317; DNApol_clamp_arch; 1.
DR   InterPro; IPR000730; Pr_cel_nuc_antig.
DR   InterPro; IPR022659; Pr_cel_nuc_antig_CS.
DR   InterPro; IPR022648; Pr_cel_nuc_antig_N.
DR   PANTHER; PTHR11352:SF0; PTHR11352:SF0; 1.
DR   Pfam; PF00705; PCNA_N; 1.
DR   PRINTS; PR00339; PCNACYCLIN.
DR   PROSITE; PS01251; PCNA_1; 1.
PE   3: Inferred from homology;
KW   DNA replication; DNA-binding; Reference proteome.
FT   CHAIN           1..245
FT                   /note="DNA polymerase sliding clamp 2"
FT                   /id="PRO_0000149211"
SQ   SEQUENCE   245 AA;  27562 MW;  D6CD368689EDC6E9 CRC64;
     MKVKVVDALG FSYIFKTLSQ YVSEATLLFG NDGFKVKGMD PSKVVYIDIF VPKDYFEEYN
     LENEMKIGVS LKDVNEVIKN VSKEDILYLE LEKDKIMFTL DGEYLRTFSL PVLSPDEVET
     PSINLEFPFR ANILTSTFGD LLDEFDQIGG DSIRFKAQNG KLYLSVMGDM GESIVELSLE
     NGGLLESTGT DAESLYGLEH VSNTTKMRRP SDTLEIAFGS QLPLKLRYNL PKGGYADFYI
     APRSE