Alpha-1 antitrypsin (AAT) genotyping is useful to confirm the clinical diagnosis of AAT deficiency and determine the specific allelic variant. Genotyping is the reference standard procedure for identifying rare allelic variants and characterizing new variants. It is also useful when there is a discrepancy between the patients’ AAT levels and their phenotypes. AAT genotype is determined by an allele-specific genotyping assay for the S, Z, and Mmalton variants and by exome sequencing.
CITATION STYLE
Belmonte, I., Montoto, L., & Rodríguez-Frías, F. (2017). Laboratory diagnosis by genotyping. In Methods in Molecular Biology (Vol. 1639, pp. 45–60). Humana Press Inc. https://doi.org/10.1007/978-1-4939-7163-3_5
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