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Database: UniProt
Entry: A0A268TAU0_9HELI
LinkDB: A0A268TAU0_9HELI
Original site: A0A268TAU0_9HELI 
ID   A0A268TAU0_9HELI        Unreviewed;       699 AA.
AC   A0A268TAU0;
DT   20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT   20-DEC-2017, sequence version 1.
DT   24-JAN-2024, entry version 20.
DE   RecName: Full=Polyribonucleotide nucleotidyltransferase {ECO:0000256|HAMAP-Rule:MF_01595};
DE            EC=2.7.7.8 {ECO:0000256|HAMAP-Rule:MF_01595};
DE   AltName: Full=Polynucleotide phosphorylase {ECO:0000256|HAMAP-Rule:MF_01595};
DE            Short=PNPase {ECO:0000256|HAMAP-Rule:MF_01595};
GN   Name=pnp {ECO:0000256|HAMAP-Rule:MF_01595};
GN   ORFNames=BKH45_05750 {ECO:0000313|EMBL:PAF41813.1};
OS   Helicobacter sp. 11S03491-1.
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=1476196 {ECO:0000313|EMBL:PAF41813.1, ECO:0000313|Proteomes:UP000216568};
RN   [1] {ECO:0000313|EMBL:PAF41813.1, ECO:0000313|Proteomes:UP000216568}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=11S03491-1 {ECO:0000313|EMBL:PAF41813.1,
RC   ECO:0000313|Proteomes:UP000216568};
RX   PubMed=28827684; DOI=10.1038/s41598-017-09091-7;
RA   Gilbert M.J., Duim B., Timmerman A.J., Zomer A.L., Wagenaar J.A.;
RT   "Whole genome-based phylogeny of reptile-associated Helicobacter indicates
RT   independent niche adaptation followed by diversification in a
RT   poikilothermic host.";
RL   Sci. Rep. 7:8387-8387(2017).
CC   -!- FUNCTION: Involved in mRNA degradation. Catalyzes the phosphorolysis of
CC       single-stranded polyribonucleotides processively in the 3'- to 5'-
CC       direction. {ECO:0000256|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:0000256|HAMAP-Rule:MF_01595};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_01595};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01595}.
CC   -!- SIMILARITY: Belongs to the polyribonucleotide nucleotidyltransferase
CC       family. {ECO:0000256|ARBA:ARBA00007404, ECO:0000256|HAMAP-
CC       Rule:MF_01595}.
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:PAF41813.1}.
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DR   EMBL; MLAO01000007; PAF41813.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A268TAU0; -.
DR   OrthoDB; 9804305at2; -.
DR   Proteomes; UP000216568; Unassembled WGS sequence.
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; 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; 2.
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 {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01595};
KW   Magnesium {ECO:0000256|HAMAP-Rule:MF_01595};
KW   Metal-binding {ECO:0000256|HAMAP-Rule:MF_01595};
KW   Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695, ECO:0000256|HAMAP-
KW   Rule:MF_01595}; Reference proteome {ECO:0000313|Proteomes:UP000216568};
KW   RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW   Rule:MF_01595};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW   Rule:MF_01595}.
FT   DOMAIN          630..699
FT                   /note="S1 motif"
FT                   /evidence="ECO:0000259|PROSITE:PS50126"
FT   BINDING         487
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01595"
FT   BINDING         493
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01595"
SQ   SEQUENCE   699 AA;  77999 MW;  57723D68F4A4AF89 CRC64;
     MHTIELKDLK EKYTLEYVAK QASGAILYQH GGTVMLASVA VDEELVEEDF LPLTVQYIEK
     SYAVGKFPGG FIKREGKPGE FETLTSRIID RSLRPIFPKG YAYPTQITIM VLSYDKKSDL
     QVCALNAAAN ALYISNLPFS RPVNAVRVGR IDGDFILNPS MQELENSSID LYVSGSKEEL
     LMIEMRSLKT NSQTNEIAEE DLLEALEFAK KAILKASKEY EKVFQSYKKS PIHLTLHTFK
     NHPDIYEYIH KNYFEELKDA LNQMAKSERS MGLKKIAADI FESVGQDKEW ELSAIDAMLE
     VCKKEILRHQ IIHQGVRVDG RGYEDVRAIR IDTNILPFAH GSVLFTRGQT QALVVGTIGS
     DNDAQTQEQL GDKISNKEKF MFHYNFPGFS VGEASPIGSP GRRELGHGNL AKRALESSIL
     DCSKTIRLVS EILESNGSSS MASVCAGSLA LCASGISISN LVAGVAMGLV VQEEKYAILT
     DINGLEDRYG DMDFKIAGSK KGITAMQMDI KLGGISHNIL QDALYQAKRA REYILDIMEE
     AKEKIIINTT ILPSLEIFNI QPNKIVDIIG QGGKTIKDII ERFGVSIDID RESGEIKILG
     QNQESANMTK DFILNLIDTQ KIDLNKYESG QIFEGEVKKV LDFGAFISLP KGGDGLLHVS
     KITKHREENI REYIREGDRI KCKILGLNKG KIELDLIRE
//
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