Enzyme deficiency in Natowicz syndrome is
**Core Concept**
Natowicz syndrome is a rare genetic disorder characterized by the deficiency of the enzyme N-acetylgalactosamine-6-sulfatase. This enzyme is crucial for the breakdown of glycosaminoglycans (GAGs), specifically chondroitin-6-sulfate, in the lysosomes of cells.
**Why the Correct Answer is Right**
The deficiency of N-acetylgalactosamine-6-sulfatase leads to the accumulation of chondroitin-6-sulfate in the lysosomes, causing cellular dysfunction and resulting in the clinical manifestations of Natowicz syndrome. This enzyme is a lysosomal sulfatase, which is essential for the degradation of sulfated GAGs. The deficiency of this enzyme disrupts the normal lysosomal function, leading to the accumulation of GAGs and subsequent cellular damage.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify the enzyme deficiency associated with Natowicz syndrome.
**Option B:** This option is incorrect because it is a different enzyme deficiency, not associated with Natowicz syndrome.
**Option C:** This option is incorrect because it is a different enzyme deficiency, not associated with Natowicz syndrome.
**Clinical Pearl / High-Yield Fact**
Natowicz syndrome is a rare lysosomal storage disorder that highlights the importance of lysosomal enzymes in the degradation of GAGs. This condition underscores the need for accurate diagnosis and management of lysosomal storage disorders.
**Correct Answer:** C.