meat proteins
Proteins are chains of amino acids. There are probably proteins specific to animal muscle, but misguided legislation notwithstanding it's the amino acids that are nutritionally required, not any specific protein configuration of those animos, and you can get those from a massive array of non-animal sources.
Taurine and arginine are amino acids, building blocks for proteins, not proteins themselves. Animo acids are quite ubiquitous across life, not specific to any one type of life. eg Plants contain both taurine and arginine.