SERINC2 (Serine Incorporator 2): SERINC2 is a protein from the SERINC family that helps incorporate serine into membrane lipids, supporting the biosynthesis and stability of cellular membranes. It plays crucial roles in maintaining membrane fluidity, regulating signaling pathways, and contributing to immune function. By influencing membrane composition, SERINC2 impacts cell proliferation, differentiation, and programmed cell death, making it essential for cellular health and physiological balance.