ATRAD3 (ATAXIA TELANGIECTASIA-MUTATED AND RAD3-RELATED); inositol or phosphatidylinositol kinase. Identical to Serine/threonine-protein kinase ATR (ATR) [Arabidopsis Thaliana] (GB:Q9FKS4;GB:Q9MAZ4); similar to TOR (TARGET OF RAPAMYCIN) [Arabidopsis thaliana] (TAIR:AT1G50030.2); similar to TOR (TARGET OF RAPAMYCIN) [Arabidopsis thaliana] (TAIR:AT1G50030.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO47439.1); similar to Serine/threonine-protein kinase ATR (GB:Q5Z987); similar to Serine/threonine-protein kinase ATR (GB:A2YH41); contains InterPro domain PIK-related kinase, FATC (InterPro:IPR003152); contains InterPro domain Arma