ID   RNPH_TROW8              Reviewed;         247 AA.
AC   Q83HF6;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 2.
DT   03-AUG-2022, entry version 87.
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=TW640;
OS   Tropheryma whipplei (strain TW08/27) (Whipple's bacillus).
OC   Bacteria; Actinobacteria; Micrococcales; Tropherymataceae; Tropheryma.
OX   NCBI_TaxID=218496;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TW08/27;
RX   PubMed=12606174; DOI=10.1016/s0140-6736(03)12597-4;
RA   Bentley S.D., Maiwald M., Murphy L.D., Pallen M.J., Yeats C.A., Dover L.G.,
RA   Norbertczak H.T., Besra G.S., Quail M.A., Harris D.E., von Herbay A.,
RA   Goble A., Rutter S., Squares R., Squares S., Barrell B.G., Parkhill J.,
RA   Relman D.A.;
RT   "Sequencing and analysis of the genome of the Whipple's disease bacterium
RT   Tropheryma whipplei.";
RL   Lancet 361:637-644(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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAD67303.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; BX251412; CAD67303.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_033800110.1; NC_004551.1.
DR   AlphaFoldDB; Q83HF6; -.
DR   SMR; Q83HF6; -.
DR   GeneID; 67388418; -.
DR   KEGG; tws:TW640; -.
DR   HOGENOM; CLU_050858_0_0_11; -.
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; RNA-binding; rRNA processing; Transferase;
KW   tRNA processing; tRNA-binding.
FT   CHAIN           1..247
FT                   /note="Ribonuclease PH"
FT                   /id="PRO_0000139945"
FT   BINDING         96
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00564"
FT   BINDING         134..136
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00564"
SQ   SEQUENCE   247 AA;  27144 MW;  AC34F5E813BE4609 CRC64;
     MLFCCIICSV LRKNSRAHDE IRPVKIIRGW NIYAEGSALI AFGNTRVLCN ATFQRGVPPF
     LRGQRSGWIT AEYAMLPRSG TERSDRESVK GKISGRSHEI SRLIGRSMRA ILDRYALEEN
     TIILDCDVLQ ADGGTRTAAI TGSYIALYDA LVWAKNQKIL SKHPLTDSVS AVSVGLVGDQ
     IFLDLDYSED SNAQADINLV FTGSGKLVEI QGTAEKSPFS YGQFEQMMEL AKTGCQALKE
     IQAASLD