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PUA RNA binding domain The PUA (PseudoUridine synthase and Archaeosine transglycosylase) domain was detected in archaeal and eukaryotic pseudouridine synthases, archaeal archaeosine synthases, a family of predicted ATPases that may be involved in RNA modification, and 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 also found in bacterial and yeast glutamate kinases; this is compatible with the demonstrated role of these enzymes in regulating the expression of other genes. It has been shown that the PUA domain acts as an RNA binding domain in at least some of the proteins involved in RNA metabolism. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",