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Journal of Biomolecular Screening
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Analysis of Genetic Variations of Lamin A/C Gene (LMNA) by Denaturing High-Performance Liquid Chromatography

Matthew R. G. Taylor

University of Colorado Cardiovascular Institute, Denver

Misi L. Robinson

Transgenomic, Inc., Omaha, NE.

Luisa Mestroni

University of Colorado Cardiovascular Institute, Denver

The human LMNA gene, when mutated, has been shown to cause at least 7 human diseases: dilated cardiomyopathy, Emery Dreifuss muscular dystrophy, limb girdle muscular dystrophy, familial partial lipodystrophy, Charcot Marie tooth disease type II, mandibuloacral dysplasia, and Hutchinson-Gilford Progeria (OMIM #176670). This article describes a high-throughput method for screening the human lamin A/C (LMNA) gene for genetic mutations and sequence variation using denaturing high-performance liquid chromatography (DHPLC). In the present study, 76 patients with dilated cardiomyopathy were screened for mutations using DHPLC and sequence analysis. Abnormal elution profiles were identified and sequenced on an ABI 377 automatic sequencer. Heterozygous LMNA mutations were detected in 8% of the affected patients. In addition, a number of intronic and exonic single nucleotide polymorphisms were identified. LMNA mutations are clinically relevant in at least 6 human diseases. This study provides a protocol for high-throughput LMNA analysis applicable both in the research and in the clinical diagnostic setting.

Key Words: lamin A/C gene • denaturing high-performance liquid chromatography • mutation screening

Journal of Biomolecular Screening, Vol. 9, No. 7, 625-628 (2004)
DOI: 10.1177/1087057104266393
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