The phrase "associated proteins" refers to proteins that work together or are connected to each other in a specific way. They often cooperate to perform certain tasks or functions within cells or organisms. Full definition
Recently, we added a focus on the role of chromosome - associated proteins in cancer. (dresden-ipp.de)
Most people associate protein with meat because it is one of the best sources available. (healthcare-online.org)
Several scientific studies have associated protein powder shakes with weight loss and improved body composition, especially shakes made with whey. (healthyeating.sfgate.com)