SREBF2 encodes a master transcription factor that regulates cholesterol biosynthesis and cellular lipid homeostasis. The protein binds to sterol regulatory elements (SRE-1) and E-box motifs to activate transcription of cholesterol synthesis genes 1. Beyond its canonical role in cholesterol metabolism, SREBF2 integrates multiple cellular processes including inflammation, where the SCAP-SREBP2 complex translocates from endoplasmic reticulum to Golgi to facilitate NLRP3 inflammasome activation in macrophages 1. In cancer, SREBF2 upregulation promotes aggressive serrated tumorigenesis through enhanced cholesterol biosynthesis 2, while in pancreatic cancer, SREBF2-driven CYP51A1 expression confers resistance to pH-dependent cell death 3. SREBF2 also maintains intestinal stem cell function through cholesterol-mediated stemness restoration 4 and controls regulatory T cell homeostasis in adipose tissue, with disruption leading to metabolic dysfunction in obesity 5. Additionally, SREBF2 regulates astrocyte lipid metabolism and ApoE secretion in neuroinflammatory conditions 6. Disease associations include migraine susceptibility 7 and polycystic ovary syndrome, where SREBF2 suppression promotes ferroptosis 8. These findings establish SREBF2 as a central metabolic regulator with broad therapeutic implications.