I don't know about the carb, fat, protein ratio, but I do know there is a recommended daily allowance for protein per my text book, The Pathway to Healthful Living.
For a sedentary person, take your weight, divide it by 2.2 to get your weight in kilograms, then multiply that number by 0.8. This will give you the number of grams of proteins you need per day.
If you exercise or are physically active, you should multiply your weight in kilograms by 1.2.
Too little protein can lead to muscle atrophy, and increasd chances of becoming ill.
Too much protein is not good either, though I am not sure about the possible negative consequesences, maybe higher LDL cholesterol levels.