If ur asking about post-transplant protein allowances in the long term, the number is 0.84g/kg ideal body weight to maintain graft health and minimize rejection. In the short term, it will be less but your transplant team will outline all of that very clearly.
If ur asking about ur protein allowances before transplant, that all depends on ur current level of kidney function. You should see a nutritionist after you get all your kidney labs back to figure out how to best address your goals. This is especially important because you may have other electrolyte restrictions to manage in your diet as well. Your goal above everything else should be to live on your own kidneys as long as possible.
For the guy asking what caused it, iga nephropathy is an autoimmune disorder. The classical presentation for something like this is intermittent blood in the urine a couple days after the onset of an upper respiratory infection, though any infection that triggers production of iga antibodies can do it. When those antibodies bind to their Target and the conplexses aren't cleared fast enough, they deposit in the kidney and cause damage.