{"knowledge_schema": {"broad_category": "Biochemistry \u2192 Protein Interactions \u2192 Post-Translational Modifications", "refinement": "This problem focuses on understanding the effects of phosphorylation on protein-protein interactions and the implications of protein mass changes observed in experiments.", "specific_scope": "The analysis involves interpreting experimental data from SEC-MALS to draw conclusions about the interactions and modifications of specific proteins under varying conditions.", "goal": "Determine the most accurate statement regarding the effects of phosphorylation on Protein A's interactions with other proteins based on experimental results."}, "summary": "This problem involves biochemistry, specifically the study of protein-protein interactions and the effects of post-translational modifications like phosphorylation. The experiments conducted provide data on the masses of proteins under different conditions, allowing us to infer how phosphorylation affects Protein A's interactions with other proteins. The goal is to analyze the results and select the most accurate statement regarding these interactions, particularly focusing on how phosphorylation influences Protein A's affinity to other proteins and its tendency to form homodimers."}