Target
Human DXO / DOM3Z
Synonyms
DXO | Dom-3 homolog Z | DOM3L | Dom-3 homolog Z (C. elegans) | DOM3Z | DOM-3 (C. elegans) homolog Z | NG6 | Protein Dom3Z | decapping and exoribonuclease protein
Reactivity
Human
(tested or 100% immunogen sequence identity)
Immunogen
Recombinant Human Decapping and exoribonuclease protein protein (69-266AA)
Specificity
Ribonuclease that specifically degrades pre-mRNAs with a defective 5' end cap and is part of a pre-mRNA capping quality control. Has decapping, pyrophosphohydrolase and 5'-3' exonuclease activities. Has decapping activity toward incomplete 5' end cap mRNAs such as unmethylated 5' end-capped RNA to release GpppN and 5' end monophosphate RNA. The 5' end monophosphate RNA is then degraded by the 5'-3' exoribonuclease activity, enabling this enzyme to decap and degrade incompletely capped mRNAs. Also possesses RNA 5'-pyrophosphohydrolase activity by hydrolyzing the 5' end triphosphate to release pyrophosphates (By similarity).