Drosophila_melanogasterFamily: PUA Number of Genes: 3
Ensembl IDSymbolEntrez IDRBD RBPome PRIExpresion PathwayPhenotype ParalogOrthologGO
MCTS1
CG11109
Nop60B

Introduction

Pfam

The PUA domain named after Pseudouridine synthase and Archaeosine transglycosylase, was detected in archaeal and eukaryotic pseudouridine synthases, archaeal archaeosine synthases, a family of predicted ATPases that may be involved in RNA modification, a family of predicted archaeal and bacterial rRNA methylases. Additionally, the PUA domain was detected in a family of eukaryotic proteins that also contain a domain homologous to the translation initiation factor eIF1/SUI1; these proteins may comprise a novel type of translation factors. Unexpectedly, the PUA domain was detected also in bacterial and yeast glutamate kinases; this is compatible with the demonstrated role of these enzymes in the regulation of the expression of other genes [1]. It is predicted that the PUA domain is an RNA binding domain.

InterPro

The PUA (PseudoUridine synthase and Archaeosine transglycosylase) domain was named after the proteins in which it was first found [PUBMED:10093218]. PUA is a highly conserved RNA-binding motif found in a wide range of archaeal, bacterial and eukaryotic proteins, including enzymes that catalyse tRNA and rRNA post-transcriptional modifications, proteins involved in ribosome biogenesis and translation, as well as in enzymes involved in proline biosynthesis [PUBMED:16793063, PUBMED:16407303]. The structures of several PUA-RNA complexes reveal a common RNA recognition surface, but also some versatility in the way in which the motif binds to RNA [PUBMED:17803682]. PUA motifs are involved in dyskeratosis congenita and cancer, pointing to links between RNA metabolism and human diseases [PUBMED:16943774].

Reference

  1. Aravind L, Koonin EV; , J Mol Evol 1999;48:291-302.: Novel predicted RNA-binding domains associated with the translation machinery. PUBMED:10093218 EPMC:10093218.