ARIC protein prediction models in predictdb format can be downloaded from here https://uchicago.box.com/s/3sf4y4gv6c7zam0l5fxicpcd3zji5wzc
See more details here https://lab-notes.hakyimlab.org/post/2021-09-08-generating-metaxcan-prediction-model-from-aric-pwas/