Does APOE4's reduced lipid-binding directly modulate SREBP2-SCAP complex retention at the ER membrane?

The theorist proposed APOE4 lipidation status affects SREBP2 processing, but the skeptic identified a critical mechanistic gap - no established pathway links secreted apolipoproteins to ER-based cholesterol sensing. This fundamental question affects all SREBP2-targeted therapeutic approaches. Source: Debate session sess_SDA-2026-04-16-gap-debate-20260410-113104-a13caf2e_20260416-135601 (Analysis: SDA-2026-04-16-gap-debate-20260410-113104-a13caf2e)

completed molecular biology Created Apr 24, 2026

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