ID   RNPH_CORDI              Reviewed;         241 AA.
AC   Q6NFN6;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=Ribonuclease PH {ECO:0000255|HAMAP-Rule:MF_00564};
DE            Short=RNase PH {ECO:0000255|HAMAP-Rule:MF_00564};
DE            EC=2.7.7.56 {ECO:0000255|HAMAP-Rule:MF_00564};
DE   AltName: Full=tRNA nucleotidyltransferase {ECO:0000255|HAMAP-Rule:MF_00564};
GN   Name=rph {ECO:0000255|HAMAP-Rule:MF_00564}; OrderedLocusNames=DIP1851;
OS   Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype
OS   gravis).
OC   Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC   Corynebacterium.
OX   NCBI_TaxID=257309;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700971 / NCTC 13129 / Biotype gravis;
RX   PubMed=14602910; DOI=10.1093/nar/gkg874;
RA   Cerdeno-Tarraga A.-M., Efstratiou A., Dover L.G., Holden M.T.G.,
RA   Pallen M.J., Bentley S.D., Besra G.S., Churcher C.M., James K.D.,
RA   De Zoysa A., Chillingworth T., Cronin A., Dowd L., Feltwell T., Hamlin N.,
RA   Holroyd S., Jagels K., Moule S., Quail M.A., Rabbinowitsch E.,
RA   Rutherford K.M., Thomson N.R., Unwin L., Whitehead S., Barrell B.G.,
RA   Parkhill J.;
RT   "The complete genome sequence and analysis of Corynebacterium diphtheriae
RT   NCTC13129.";
RL   Nucleic Acids Res. 31:6516-6523(2003).
CC   -!- FUNCTION: Phosphorolytic 3'-5' exoribonuclease that plays an important
CC       role in tRNA 3'-end maturation. Removes nucleotide residues following
CC       the 3'-CCA terminus of tRNAs; can also add nucleotides to the ends of
CC       RNA molecules by using nucleoside diphosphates as substrates, but this
CC       may not be physiologically important. Probably plays a role in
CC       initiation of 16S rRNA degradation (leading to ribosome degradation)
CC       during starvation. {ECO:0000255|HAMAP-Rule:MF_00564}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + tRNA(n+1) = a ribonucleoside 5'-diphosphate +
CC         tRNA(n); Xref=Rhea:RHEA:10628, Rhea:RHEA-COMP:17343, Rhea:RHEA-
CC         COMP:17344, ChEBI:CHEBI:43474, ChEBI:CHEBI:57930, ChEBI:CHEBI:173114;
CC         EC=2.7.7.56; Evidence={ECO:0000255|HAMAP-Rule:MF_00564};
CC   -!- SUBUNIT: Homohexameric ring arranged as a trimer of dimers.
CC       {ECO:0000255|HAMAP-Rule:MF_00564}.
CC   -!- SIMILARITY: Belongs to the RNase PH family. {ECO:0000255|HAMAP-
CC       Rule:MF_00564}.
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DR   EMBL; BX248359; CAE50380.1; -; Genomic_DNA.
DR   RefSeq; WP_010935375.1; NC_002935.2.
DR   AlphaFoldDB; Q6NFN6; -.
DR   SMR; Q6NFN6; -.
DR   STRING; 257309.DIP1851; -.
DR   PRIDE; Q6NFN6; -.
DR   EnsemblBacteria; CAE50380; CAE50380; DIP1851.
DR   KEGG; cdi:DIP1851; -.
DR   PATRIC; fig|257309.4.peg.1835; -.
DR   HOGENOM; CLU_050858_0_0_11; -.
DR   OMA; KGKGQGW; -.
DR   OrthoDB; 1824064at2; -.
DR   Proteomes; UP000002198; Chromosome.
DR   GO; GO:0000175; F:3'-5'-exoribonuclease activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009022; F:tRNA nucleotidyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016075; P:rRNA catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-KW.
DR   GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-UniRule.
DR   CDD; cd11362; RNase_PH_bact; 1.
DR   Gene3D; 3.30.230.70; -; 1.
DR   HAMAP; MF_00564; RNase_PH; 1.
DR   InterPro; IPR001247; ExoRNase_PH_dom1.
DR   InterPro; IPR015847; ExoRNase_PH_dom2.
DR   InterPro; IPR036345; ExoRNase_PH_dom2_sf.
DR   InterPro; IPR027408; PNPase/RNase_PH_dom_sf.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR002381; RNase_PH_bac-type.
DR   InterPro; IPR018336; RNase_PH_CS.
DR   Pfam; PF01138; RNase_PH; 1.
DR   Pfam; PF03725; RNase_PH_C; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
DR   SUPFAM; SSF55666; SSF55666; 1.
DR   TIGRFAMs; TIGR01966; RNasePH; 1.
DR   PROSITE; PS01277; RIBONUCLEASE_PH; 1.
PE   3: Inferred from homology;
KW   Nucleotidyltransferase; Reference proteome; RNA-binding; rRNA processing;
KW   Transferase; tRNA processing; tRNA-binding.
FT   CHAIN           1..241
FT                   /note="Ribonuclease PH"
FT                   /id="PRO_0000139883"
FT   BINDING         90
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00564"
FT   BINDING         128..130
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00564"
SQ   SEQUENCE   241 AA;  25895 MW;  73F96D0030D3F03E CRC64;
     MTDFSRADGR AVDQMRTVKI TRGFTSNPAG SVLVEFGNTR VMCTASVELG VPRFKRDSGE
     GWLTAEYAML PAATAERNAR ESMRGKVKGR THEISRLIGR SLRAAVDLDE LGENTINIDC
     DVLQADGGTR TASITGAYVA LADAIAVLKE QGVVPGNPLK AAVAAVSVGV IDGQVCLDLP
     YEEDSRADVD MNVIMQGDRF VEIQGTGEHN TFDRDELAVI LDFAQKGCQE LFAAQKAALE
     Q