It's impossible to be allergic to protein itself, although there are several forms of meat, nut, and fruit Allergies. (All those have protein, you see.) Protein is an essential dietary component, and your body requires it to live. If you are allergic to a certain protein, it is not the protein itself that causes it, but something else in the meat/nut/fruit/whatever.
Protein molecules are the molecules that set off an allergic reaction. Common allergens associated with protein molecules include pollen, dust mites and peanuts.
Only if you are allergic to them. They are a good source of protein.
Yes, you can have an allergy or intolerance to protein (or anything else under the sun, including the sun). .
If you have Strawberry Allergy then you suffer from allergies Type 1 what is also called Contact Allergies. One or more of the thousands of proteins found in strawberries causes the allergic reaction to strawberry. Scientist at the Lund University of Sweden has identified a protein that is believed to cause the majority of allergic reactions to strawberry. This protein is very similar to the allergy causing protein found in birch pollen. Individuals that are allergic to birch pollen can have a cross allergy reaction to some berries, fruits and to some vegetables. Researchers have found that the protein that caused the allergic reaction is Not found in the white strawberry. This protein seems to be related somehow to the red coloration of the red strawberry. And you won't be able to enjoy strawberry poptarts.
It's a peptide. It's not necessarily the same peptide for every person, and certainly not for every type of animal (if it were, anyone who was allergic to dogs would also be allergic to cats, rats, bears, monkeys and probably people). But if there is a protein common to the dogs and the cats and say, horses too, then a person allergic to that protein all these animals have in common could have an allergic reaction to all these animals.
Only if the person is already allergic to that antigen. Not if they are immune to the antigen. The word antigen refers to the protein that joins with the antibody. If the antibody is of the allergic type (IgE) then an allergic reaction will happen and if the antibody is of the immune type (IgG, IgM or IgA) then there won't be an allergic reaction.
Cats
gluten, a protein found in wheat, rye and barley.
The primary allergen is a protein called Fel d 1 that is produced by cat saliva and sebaceous glands, which causes either an allergic or asthmatic response.
protein Lactose
An allergic reaction to a banana isn't very common, but it does happen. Some people are allergic to the form of protein contained in the banana. Additionally, if you're allergic to the banana, you could also be allergic to watermelon, cantaloupe kiwi, avocado and chestnuts and latex. Some people aren't actually allergic to bananas, they're allergic to the gas used to ripen bananas.
No, gluten is a plant protein. Some people are allergic to it and must avoid it.