ATX1 (ARABIDOPSIS HOMOLOGUE OF TRITHORAX); histone-lysine N-methyltransferase/ phosphatidylinositol-5-phosphate binding. Identical to Histone-lysine N-methyltransferase, H3 lysine-4 specific ATX1 (ATX1) [Arabidopsis Thaliana] (GB:Q9C5X4;GB:Q84WP4;GB:Q9SIP3); similar to trithorax protein, putative / PHD finger family protein / SET domain-containing protein [Arabidopsis thaliana] (TAIR:AT1G05830.2); similar to trithorax protein, putative / PHD finger family protein / SET domain-containing protein [Arabidopsis thaliana] (TAIR:AT1G05830.1); similar to trithorax-like protein, histone-lysine N-methyltransferase [Physcomitrella patens subsp. patens