ID   PNP_PSEPU               Reviewed;         701 AA.
AC   O87792;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   03-AUG-2022, entry version 108.
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};
OS   Pseudomonas putida (Arthrobacter siderocapsulatus).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=303;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=TMB;
RA   Favaro R., Deho' G.;
RT   "Identification and cloning of genes involved in RNA turnover in
RT   Pseudomonas putida.";
RL   Submitted (SEP-1998) to the EMBL/GenBank/DDBJ databases.
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;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01595};
CC   -!- SUBUNIT: Component of the RNA degradosome, which is a multiprotein
CC       complex involved in RNA processing and mRNA degradation.
CC       {ECO:0000255|HAMAP-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; Y18132; CAA77048.1; -; Genomic_DNA.
DR   AlphaFoldDB; O87792; -.
DR   SMR; O87792; -.
DR   STRING; 1240350.AMZE01000021_gene1500; -.
DR   eggNOG; COG1185; Bacteria.
DR   BRENDA; 2.7.7.8; 5092.
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   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.30.1370.10; -; 1.
DR   Gene3D; 3.30.230.70; -; 2.
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; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR022967; S1_dom.
DR   InterPro; IPR003029; S1_domain.
DR   PANTHER; PTHR11252; PTHR11252; 1.
DR   Pfam; PF00013; KH_1; 1.
DR   Pfam; PF03726; PNPase; 1.
DR   Pfam; PF01138; RNase_PH; 2.
DR   Pfam; PF03725; RNase_PH_C; 2.
DR   Pfam; PF00575; S1; 1.
DR   PIRSF; PIRSF005499; PNPase; 1.
DR   SMART; SM00322; KH; 1.
DR   SMART; SM00316; S1; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF54211; SSF54211; 2.
DR   SUPFAM; SSF54791; SSF54791; 1.
DR   SUPFAM; SSF55666; SSF55666; 2.
DR   TIGRFAMs; TIGR03591; polynuc_phos; 1.
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..701
FT                   /note="Polyribonucleotide nucleotidyltransferase"
FT                   /id="PRO_0000197916"
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   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   701 AA;  74985 MW;  5DB8F1A446DF0F2C CRC64;
     MNPVIKTFQF GQSTVTLETG RIARQATGAV LVTVDNDVTV LVTVVGAKQA DPGKGFFPLS
     VHYQEKTYAA GKIPGGFFKR EGRPSEKETL TSRLIDRPIR PLFPEGFMNE VQVVCTVVST
     SKKTDPDIAA MIGTSAALAI SGIPFEGPIG AARVAFHEST GYLLNPTYEQ LAASSLDMVV
     AGTSDAVLMV ESEAQELTED QMLGAVLFAH DEFQAVIQAV KELAAEAGKP TWDWKPAVAN
     TELFNAIRAE FGEAVSQGYT ITVKADRYAR LGELRDQAVA KFSGEEGQPS ASEVKEIFGE
     IEYRTVRENI VNGKPRIDGR DNKTVRPLNI EVGVLPKTHG SALFTRGETQ ALVVATLGTA
     RDAQLLDTLE GEKKDPFMLH YNFPPFSVGE CGRMGGAGRR EIGHGRLARR SVQAMLPAAD
     VFPYTIRVVS EITESNGSSS MASVCGASLA LMDAGVPMKA PVAGIAMGLV KEGDKFAVLT
     DILGDEDHLG DMDFKVAGTA KGVTALQMDI KINGITEEIM EIALGQALEA RLNILGQMNQ
     VIGQSRTELS ANAPTMIAMK IDTDKIRDVI GKGGATIRAI CEETKASIDI EDDGSIKIFG
     ETKEAADAAK QRILGITAEA EIGKIYVGKV ERIVDFGAFV NILPGKDGLV HISMLSDARV
     EKVTDILKEG QEVEVLVLDV DNRGRIKLSI KDVAAAKASG V