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PRIS_PICTO
ID   PRIS_PICTO              Reviewed;         370 AA.
AC   Q6L0W5;
DT   29-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=DNA primase small subunit PriS {ECO:0000255|HAMAP-Rule:MF_00700};
DE            EC=2.7.7.- {ECO:0000255|HAMAP-Rule:MF_00700};
GN   Name=priS {ECO:0000255|HAMAP-Rule:MF_00700}; Synonyms=priA;
GN   OrderedLocusNames=PTO0802;
OS   Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC
OS   100828).
OC   Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC   Picrophilaceae; Picrophilus.
OX   NCBI_TaxID=263820;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828;
RX   PubMed=15184674; DOI=10.1073/pnas.0401356101;
RA   Fuetterer O., Angelov A., Liesegang H., Gottschalk G., Schleper C.,
RA   Schepers B., Dock C., Antranikian G., Liebl W.;
RT   "Genome sequence of Picrophilus torridus and its implications for life
RT   around pH 0.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9091-9096(2004).
CC   -!- FUNCTION: Catalytic subunit of DNA primase, an RNA polymerase that
CC       catalyzes the synthesis of short RNA molecules used as primers for DNA
CC       polymerase during DNA replication. The small subunit contains the
CC       primase catalytic core and has DNA synthesis activity on its own.
CC       Binding to the large subunit stabilizes and modulates the activity,
CC       increasing the rate of DNA synthesis while decreasing the length of the
CC       DNA fragments, and conferring RNA synthesis capability. The DNA
CC       polymerase activity may enable DNA primase to also catalyze primer
CC       extension after primer synthesis. May also play a role in DNA repair.
CC       {ECO:0000255|HAMAP-Rule:MF_00700}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00700};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00700};
CC   -!- SUBUNIT: Heterodimer of a small subunit (PriS) and a large subunit
CC       (PriL). {ECO:0000255|HAMAP-Rule:MF_00700}.
CC   -!- SIMILARITY: Belongs to the eukaryotic-type primase small subunit
CC       family. {ECO:0000255|HAMAP-Rule:MF_00700}.
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DR   EMBL; AE017261; AAT43387.1; -; Genomic_DNA.
DR   RefSeq; WP_011177603.1; NC_005877.1.
DR   AlphaFoldDB; Q6L0W5; -.
DR   SMR; Q6L0W5; -.
DR   STRING; 263820.PTO0802; -.
DR   EnsemblBacteria; AAT43387; AAT43387; PTO0802.
DR   GeneID; 2844074; -.
DR   KEGG; pto:PTO0802; -.
DR   PATRIC; fig|263820.9.peg.837; -.
DR   eggNOG; arCOG04110; Archaea.
DR   HOGENOM; CLU_056123_1_0_2; -.
DR   OMA; GYHVHVR; -.
DR   OrthoDB; 95578at2157; -.
DR   Proteomes; UP000000438; Chromosome.
DR   GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR   GO; GO:1990077; C:primosome complex; IEA:UniProtKB-KW.
DR   GO; GO:0003896; F:DNA primase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   CDD; cd04860; AE_Prim_S; 1.
DR   HAMAP; MF_00700; DNA_primase_sml_arc; 1.
DR   InterPro; IPR002755; DNA_primase_S.
DR   InterPro; IPR014052; DNA_primase_ssu_euk/arc.
DR   InterPro; IPR023639; DNA_primase_ssu_PriS.
DR   PANTHER; PTHR10536; PTHR10536; 1.
DR   Pfam; PF01896; DNA_primase_S; 1.
DR   TIGRFAMs; TIGR00335; primase_sml; 1.
PE   3: Inferred from homology;
KW   DNA replication; DNA-directed RNA polymerase; Magnesium; Manganese;
KW   Metal-binding; Nucleotidyltransferase; Primosome; Reference proteome;
KW   Transcription; Transferase.
FT   CHAIN           1..370
FT                   /note="DNA primase small subunit PriS"
FT                   /id="PRO_0000046747"
FT   ACT_SITE        92
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00700"
FT   ACT_SITE        94
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00700"
FT   ACT_SITE        272
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00700"
SQ   SEQUENCE   370 AA;  43752 MW;  74EF0810ABEE8477 CRC64;
     MISYDKSLNY FSLYYRSNHL IMPDLISKRE IGYIPFSGTM IRHLSFRNHR EIESFVKRNT
     PRHLYYSSAY YIKPDEKRME KKIWEGAELI FDLDADHIPG SDKMTYEEIL LEVKKHVSRL
     LNYLINDFGF DDDSIKLYFS GGRGYHVHVV SDRVYSLDSD ARREIGNYIK MEDFTIDNII
     RASREKPESG PLKRFNEYIS EIYSDENYLK RFYNGDFDRY YKSLDVYKDG KKKIDIMREN
     NYEKFKIVSK RDLDVLNNIL NDFKDKYSAE IDEPVTTDVH RLIRFPGSLH GKTGLAVTPV
     NINEFDNFDP LISAVPEVFK DKYEHVYLNS DYMITMMNEK FSLNAGENKV PLYLALFLTG
     MKIGNFIEKK
 
 
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