Yes you can... PERM and i140 has nothing to do with status...for aos 485 you can adjust if your entry was inspected , which I believe in your case is true.. Ask you employer to apply perm and I 140... Fyi.. There are cases in some circuit court that even uninspected individual can AOS..
I am not lawyer but the info is based on my research ..I recommend you call USCIS first .. They will provide you appropriate info..To confirm talk to lawyer also...