Table : Ablation studies on models using coarse 3D conformations. Another interesting question was what will happen if ligand conformation is not necessary the relevant conformation to the predicted property? To answer this question, we took the compounds in the datasets of Table and generated their 3D conformation with the 3D conversion routine of RDkit and built APAN 3D models as we did in the QM tasks. It can be seen in Table that the performance of these 3D models is actually worse than the APAN 2D models. This highlights that using coarse/irrelevant 3D conformations didn't improve model accuracy comparing with 2D models, since they might bring in some noise to the model. This might be somehow contradict to the work on Uni-Mol model, but we should bear in mind that the Uni-Mol model was fine-tuned on a pre-trained 3D model which we didn't do here.