Tay-Sachs disease is a rare, inherited disorder that most commonly affects infants. There are typically no symptoms evident in the first 3-6 months of life. After the first 3-6 months, development slows, motor skills diminish, and ultimately premature death results. The cause of this disease is the inability to produce enough functional hexosaminidase A (Hex-A). Hex-A is an enzyme that cleaves certain waste lipids in the brain and spinal cord.
Based on these details, where in the cell does Hex-A most likely reside?