Advertisement
Research Article Free access | 10.1172/JCI115848
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Perryman, M. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Yu, Q. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Marian, A. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Mares, A. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Czernuszewicz, G. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Ifegwu, J. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Hill, R. in: JCI | PubMed | Google Scholar
Section of Cardiology, Baylor College of Medicine, Houston, Texas 77030.
Find articles by Roberts, R. in: JCI | PubMed | Google Scholar
Published July 1, 1992 - More info
We have determined that a missense mutation in exon 13 of the beta-myosin heavy chain (beta MHC) gene is expressed in the messenger RNA (mRNA) isolated from a right ventricular endomyocardial biopsy obtained from the proband of a family with hypertrophic cardiomyopathy. The mutation is the result of a substitution of an adenine for a guanine residue in one allele of the beta MHC gene and creates a second recognition site for the restriction endonuclease Ddel in exon 13. The mutation is inherited in a Mendelian fashion and co-segregates with hypertrophic cardiomyopathy in this family. Complementary DNAs synthesized from RNA isolated from the endomyocardial biopsy were cloned into a plasmid vector and sequenced to confirm the expression of both the normal and mutant allele in mRNA of myocardial tissue. This is the first report of the transcription of a mutant beta MHC gene allele into mRNA of the myocardium.
Images.