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A5U240 · RNPH_MYCTA

Function

function

Phosphorolytic 3'-5' exoribonuclease that plays an important role in tRNA 3'-end maturation. Removes nucleotide residues following the 3'-CCA terminus of tRNAs; can also add nucleotides to the ends of RNA molecules by using nucleoside diphosphates as substrates, but this may not be physiologically important. Probably plays a role in initiation of 16S rRNA degradation (leading to ribosome degradation) during starvation.

Catalytic activity

Features

Showing features for binding site.

125920406080100120140160180200220240
TypeIDPosition(s)Description
Binding site88phosphate (UniProtKB | ChEBI); substrate
Binding site126-128phosphate (UniProtKB | ChEBI); substrate

GO annotations

AspectTerm
Molecular Function3'-5'-RNA exonuclease activity
Molecular FunctiontRNA binding
Molecular FunctiontRNA nucleotidyltransferase activity
Biological ProcessrRNA catabolic process
Biological ProcessrRNA processing
Biological ProcesstRNA processing

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Ribonuclease PH
  • EC number
  • Short names
    RNase PH
  • Alternative names
    • tRNA nucleotidyltransferase

Gene names

    • Name
      rph
    • Ordered locus names
      MRA_1348

Organism names

Accessions

  • Primary accession
    A5U240

Proteomes

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_10000248341-259Ribonuclease PH

Interaction

Subunit

Homohexameric ring arranged as a trimer of dimers.

Structure

Family & Domains

Sequence similarities

Belongs to the RNase PH family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    259
  • Mass (Da)
    27,351
  • Last updated
    2007-07-10 v1
  • MD5 Checksum
    BD6CB08DDC4E2DEF87DBD0AD3A1F7970
MSKREDGRLDHELRPVIITRGFTENPAGSVLIEFGHTKVLCTASVTEGVPRWRKATGLGWLTAEYAMLPSATHSRSDRESVRGRLSGRTQEISRLIGRSLRACIDLAALGENTIAIDCDVLQADGGTRTAAITGAYVALADAVTYLSAAGKLSDPRPLSCAIAAVSVGVVDGRIRVDLPYEEDSRAEVDMNVVATDTGTLVEIQGTGEGATFARSTLDKLLDMALGACDTLFAAQRDALALPYPGVLPQGPPPPKAFGT

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP000611
EMBL· GenBank· DDBJ
ABQ73090.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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