ID   PNP_RICCN               Reviewed;         749 AA.
AC   Q92HV7;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   27-MAR-2024, entry version 115.
DE   RecName: Full=Polyribonucleotide nucleotidyltransferase {ECO:0000255|HAMAP-Rule:MF_01595};
DE            EC=2.7.7.8 {ECO:0000255|HAMAP-Rule:MF_01595};
DE   AltName: Full=Polynucleotide phosphorylase {ECO:0000255|HAMAP-Rule:MF_01595};
DE            Short=PNPase {ECO:0000255|HAMAP-Rule:MF_01595};
GN   Name=pnp {ECO:0000255|HAMAP-Rule:MF_01595}; OrderedLocusNames=RC0663;
OS   Rickettsia conorii (strain ATCC VR-613 / Malish 7).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=272944;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-613 / Malish 7;
RX   PubMed=11557893; DOI=10.1126/science.1061471;
RA   Ogata H., Audic S., Renesto-Audiffren P., Fournier P.-E., Barbe V.,
RA   Samson D., Roux V., Cossart P., Weissenbach J., Claverie J.-M., Raoult D.;
RT   "Mechanisms of evolution in Rickettsia conorii and R. prowazekii.";
RL   Science 293:2093-2098(2001).
CC   -!- FUNCTION: Involved in mRNA degradation. Catalyzes the phosphorolysis of
CC       single-stranded polyribonucleotides processively in the 3'- to 5'-
CC       direction. {ECO:0000255|HAMAP-Rule:MF_01595}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + RNA(n+1) = a ribonucleoside 5'-diphosphate +
CC         RNA(n); Xref=Rhea:RHEA:22096, Rhea:RHEA-COMP:14527, Rhea:RHEA-
CC         COMP:17342, ChEBI:CHEBI:43474, ChEBI:CHEBI:57930, ChEBI:CHEBI:140395;
CC         EC=2.7.7.8; Evidence={ECO:0000255|HAMAP-Rule:MF_01595};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01595};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01595}.
CC   -!- SIMILARITY: Belongs to the polyribonucleotide nucleotidyltransferase
CC       family. {ECO:0000255|HAMAP-Rule:MF_01595}.
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DR   EMBL; AE006914; AAL03201.1; -; Genomic_DNA.
DR   PIR; G97782; G97782.
DR   RefSeq; WP_010977288.1; NC_003103.1.
DR   AlphaFoldDB; Q92HV7; -.
DR   SMR; Q92HV7; -.
DR   GeneID; 927740; -.
DR   KEGG; rco:RC0663; -.
DR   PATRIC; fig|272944.4.peg.756; -.
DR   HOGENOM; CLU_004217_2_2_5; -.
DR   Proteomes; UP000000816; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004654; F:polyribonucleotide nucleotidyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006402; P:mRNA catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006396; P:RNA processing; IEA:InterPro.
DR   CDD; cd02393; KH-I_PNPase; 1.
DR   CDD; cd11363; RNase_PH_PNPase_1; 1.
DR   CDD; cd11364; RNase_PH_PNPase_2; 1.
DR   Gene3D; 3.30.230.70; GHMP Kinase, N-terminal domain; 2.
DR   Gene3D; 3.30.1370.10; K Homology domain, type 1; 1.
DR   Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 1.
DR   HAMAP; MF_01595; PNPase; 1.
DR   InterPro; IPR001247; ExoRNase_PH_dom1.
DR   InterPro; IPR015847; ExoRNase_PH_dom2.
DR   InterPro; IPR036345; ExoRNase_PH_dom2_sf.
DR   InterPro; IPR004087; KH_dom.
DR   InterPro; IPR004088; KH_dom_type_1.
DR   InterPro; IPR036612; KH_dom_type_1_sf.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR012162; PNPase.
DR   InterPro; IPR027408; PNPase/RNase_PH_dom_sf.
DR   InterPro; IPR015848; PNPase_PH_RNA-bd_bac/org-type.
DR   InterPro; IPR036456; PNPase_PH_RNA-bd_sf.
DR   InterPro; IPR020568; Ribosomal_Su5_D2-typ_SF.
DR   InterPro; IPR003029; S1_domain.
DR   NCBIfam; TIGR03591; polynuc_phos; 1.
DR   PANTHER; PTHR11252; POLYRIBONUCLEOTIDE NUCLEOTIDYLTRANSFERASE; 1.
DR   PANTHER; PTHR11252:SF0; POLYRIBONUCLEOTIDE NUCLEOTIDYLTRANSFERASE 1, MITOCHONDRIAL; 1.
DR   Pfam; PF00013; KH_1; 1.
DR   Pfam; PF03726; PNPase; 1.
DR   Pfam; PF01138; RNase_PH; 2.
DR   Pfam; PF03725; RNase_PH_C; 1.
DR   Pfam; PF00575; S1; 1.
DR   PIRSF; PIRSF005499; PNPase; 1.
DR   SMART; SM00322; KH; 1.
DR   SMART; SM00316; S1; 1.
DR   SUPFAM; SSF54791; Eukaryotic type KH-domain (KH-domain type I); 1.
DR   SUPFAM; SSF50249; Nucleic acid-binding proteins; 1.
DR   SUPFAM; SSF46915; Polynucleotide phosphorylase/guanosine pentaphosphate synthase (PNPase/GPSI), domain 3; 1.
DR   SUPFAM; SSF55666; Ribonuclease PH domain 2-like; 2.
DR   SUPFAM; SSF54211; Ribosomal protein S5 domain 2-like; 2.
DR   PROSITE; PS50084; KH_TYPE_1; 1.
DR   PROSITE; PS50126; S1; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Magnesium; Metal-binding; Nucleotidyltransferase; RNA-binding;
KW   Transferase.
FT   CHAIN           1..749
FT                   /note="Polyribonucleotide nucleotidyltransferase"
FT                   /id="PRO_0000289281"
FT   DOMAIN          554..613
FT                   /note="KH"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01595"
FT   DOMAIN          623..691
FT                   /note="S1 motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01595"
FT   REGION          691..749
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        715..749
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         487
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01595"
FT   BINDING         493
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01595"
SQ   SEQUENCE   749 AA;  82118 MW;  39D07B0B2ACA13EF CRC64;
     MFNEITKSVT WNGQVLELST GKIARQADGA VTVKMGNSVL LCTAVVANKA KEGIGFLPLT
     INYREMAYAA GKIPGGFFKH EGKASDREVL VSRLIDRPIR PLFHPAFVNE THVTCSVLSY
     DPETPVDILA IIGASAALSL SPAPYLEIVA ASKVGLINGE FVLNPTLALL KTSQLDLVVA
     GTSDSVMMVE SEAHLLSEEQ MLEAVKFGFE SFQPVIKIIK ELAEEAKKPK LEMQALYPAS
     LKKEIEKLFV KEIEQAFAIK SKQERSTNLD LIPEKVLTHF VSDIENKKYS NYQIESALKA
     IESDILRNEI LEKNRRIDGR STTDIRQIAC EIGLLPSAHG SALFTRGETQ SLVSTTFGTS
     LDEQIVDSLE GEYKERFMLN YIFPPYSVNE AMPMKAPSRR EVGHGKLAWR AINPILPNKV
     QFPYSIRVVA ETTESNGSSS MATVCGSSLA LMYAGVPIKA PVAGIAMGLV KEGKNFAVLS
     DILGDEDYFG DMDFKVAGTS EGITALQMDI KISGVDFKIM KVALEQARLG RLHILEQMNK
     VISKPNNELS KNAPSTTTIK IDKDKIRDII GPGGKIIKEI CETSGAKIDI SDDGTVSVYA
     SDRDKLKVAL DKIKAIVVEP EIGEIFNGTV VKVLDSGAFI NYVGNKDGFV HISEVSGERI
     ETVSSVLKQG DIVKVKLIGF DNKGKAKLTI KNADKDKSSN NTKPKTNVNN TNKDNSEPEQ
     RRDSSKKRAW NEDNNAETAE VITERKYFN
//