Scientific background:

Summary: The enzyme Alanine-glyoxylate aminotransferase is located in liver peroxisomes. In hyperoxaluria type 1 (oxalosis 1), its activity in liver cells is significantly reduced.

Methodology:

	clinical test	Method		Genomic sequencing of the entire coding region
		Turn-around time		15 working days
		Effort		medium
		Specimen		DNA
		Quality assessment		Internal quality control only
	All known and new missense, nonsense and splice mutations can be detected.
	clinical test	Method		Multiplex Ligation-Dependent Probe Amplification
		Turn-around time		25 working days
		Effort		medium
		Specimen		DNA
		Quality assessment		Internal quality control only
	clinical test	Method		Carrier testing
		Turn-around time		5 working days
		Effort		little
		Specimen		DNA
		Quality assessment		Internal quality control only
	The test is only specific about the mutation already known in this kindred.

Literature: 

Purdue PE et al. (1990) Identification of mutations associated with peroxisome-to-mitochondrion mistargeting of alanine/glyoxylate aminotransferase in primary hyperoxaluria type 1.