The LCAT gene encodes the enzyme LCAT, lecithin-cholesterol acyltransferase. The esterification of cholesterol is required for cholesterol transport back to the liver. Loss-of function mutations have been found to cause fish-eye and Norum disease.
| Clinic | Method | Carrier testing |
| Turnaround | 5 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Massive parallel sequencing |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Genomic sequencing of the entire coding region |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |
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