High impact information on NSUN2

• By transient transfection assays, we have identified a bidirectional promoter activity in this region; this activity was highest in the negative orientation, in the direction of the methyltransferase Nsun2 (predicted) gene [1].
• Like DNA m5C methyltransferases, Trm4p mediates methylation using a covalent intermediate, which would allow Trm4p to be trapped as a stable protein-RNA complex when the substrate RNA contains a modified cytosine base such as 5-fluorocytosine [2].
• The yeast extract prepared from the strain deprived of the endogenous TRM4 gene and transformed with hTrm4 cDNA exhibits the same activity and substrate specificity toward human pre-tRNA(Leu) transcripts as the HeLa extract [3].
• The analysis led to the identification of two invariant residues that are important for Trm4p activity in addition to the conserved Cys residues in motif IV and motif VI that were previously found to be critical [4].

Other interactions of NSUN2

• Nucleolar proteins NPM1/nucleophosmin/B23 and nucleolin/C23 were associated with NSUN2 during interphase [5].

References