Abstract
Familial hypertrophic cardiomyopathy can be caused by mutations in genes encoding sarcomeric proteins, including the cardiac isoform of myosin binding protein C (MyBP-C), and multiple mutations which cause truncated forms of the protein to be made are linked to the disease. We have created transgenic mice in which varying amounts of a mutated MyBP-C, lacking the myosin and titin binding domains, are expressed in the heart. The transgenically encoded, truncated protein is stable but is not incorporated efficiently into the sarcomere. The transgenic muscle fibers showed a leftward shift in the pCa2+-force curve and, importantly, their power output was reduced. Additionally, expression of the mutant protein leads to decreased levels of endogenous MyBP-C, resulting in a striking pattern of sarcomere disorganization and dysgenesis.
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- Bonne G., Carrier L., Bercovici J., Cruaud C., Richard P., Hainque B., Gautel M., Labeit S., James M., Beckmann J. Cardiac myosin binding protein-C gene splice acceptor site mutation is associated with familial hypertrophic cardiomyopathy. Nat Genet. 1995 Dec;11(4):438–440. doi: 10.1038/ng1295-438. [DOI] [PubMed] [Google Scholar]
- Carrier L., Bonne G., Bährend E., Yu B., Richard P., Niel F., Hainque B., Cruaud C., Gary F., Labeit S. Organization and sequence of human cardiac myosin binding protein C gene (MYBPC3) and identification of mutations predicted to produce truncated proteins in familial hypertrophic cardiomyopathy. Circ Res. 1997 Mar;80(3):427–434. [PubMed] [Google Scholar]
- Charron P., Dubourg O., Desnos M., Isnard R., Hagege A., Bonne G., Carrier L., Tesson F., Bouhour J. B., Buzzi J. C. Genotype-phenotype correlations in familial hypertrophic cardiomyopathy. A comparison between mutations in the cardiac protein-C and the beta-myosin heavy chain genes. Eur Heart J. 1998 Jan;19(1):139–145. doi: 10.1053/euhj.1997.0575. [DOI] [PubMed] [Google Scholar]
- Edman K. A. The velocity of unloaded shortening and its relation to sarcomere length and isometric force in vertebrate muscle fibres. J Physiol. 1979 Jun;291:143–159. doi: 10.1113/jphysiol.1979.sp012804. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fewell J. G., Hewett T. E., Sanbe A., Klevitsky R., Hayes E., Warshaw D., Maughan D., Robbins J. Functional significance of cardiac myosin essential light chain isoform switching in transgenic mice. J Clin Invest. 1998 Jun 15;101(12):2630–2639. doi: 10.1172/JCI2825. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fewell J. G., Osinska H., Klevitsky R., Ng W., Sfyris G., Bahrehmand F., Robbins J. A treadmill exercise regimen for identifying cardiovascular phenotypes in transgenic mice. Am J Physiol. 1997 Sep;273(3 Pt 2):H1595–H1605. doi: 10.1152/ajpheart.1997.273.3.H1595. [DOI] [PubMed] [Google Scholar]
- Freiburg A., Gautel M. A molecular map of the interactions between titin and myosin-binding protein C. Implications for sarcomeric assembly in familial hypertrophic cardiomyopathy. Eur J Biochem. 1996 Jan 15;235(1-2):317–323. doi: 10.1111/j.1432-1033.1996.00317.x. [DOI] [PubMed] [Google Scholar]
- Geisterfer-Lowrance A. A., Christe M., Conner D. A., Ingwall J. S., Schoen F. J., Seidman C. E., Seidman J. G. A mouse model of familial hypertrophic cardiomyopathy. Science. 1996 May 3;272(5262):731–734. doi: 10.1126/science.272.5262.731. [DOI] [PubMed] [Google Scholar]
- Geisterfer-Lowrance A. A., Kass S., Tanigawa G., Vosberg H. P., McKenna W., Seidman C. E., Seidman J. G. A molecular basis for familial hypertrophic cardiomyopathy: a beta cardiac myosin heavy chain gene missense mutation. Cell. 1990 Sep 7;62(5):999–1006. doi: 10.1016/0092-8674(90)90274-i. [DOI] [PubMed] [Google Scholar]
- Gilbert R., Kelly M. G., Mikawa T., Fischman D. A. The carboxyl terminus of myosin binding protein C (MyBP-C, C-protein) specifies incorporation into the A-band of striated muscle. J Cell Sci. 1996 Jan;109(Pt 1):101–111. doi: 10.1242/jcs.109.1.101. [DOI] [PubMed] [Google Scholar]
- Gulick J., Hewett T. E., Klevitsky R., Buck S. H., Moss R. L., Robbins J. Transgenic remodeling of the regulatory myosin light chains in the mammalian heart. Circ Res. 1997 May;80(5):655–664. doi: 10.1161/01.res.80.5.655. [DOI] [PubMed] [Google Scholar]
- Jones W. K., Grupp I. L., Doetschman T., Grupp G., Osinska H., Hewett T. E., Boivin G., Gulick J., Ng W. A., Robbins J. Ablation of the murine alpha myosin heavy chain gene leads to dosage effects and functional deficits in the heart. J Clin Invest. 1996 Oct 15;98(8):1906–1917. doi: 10.1172/JCI118992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kasahara H., Itoh M., Sugiyama T., Kido N., Hayashi H., Saito H., Tsukita S., Kato N. Autoimmune myocarditis induced in mice by cardiac C-protein. Cloning of complementary DNA encoding murine cardiac C-protein and partial characterization of the antigenic peptides. J Clin Invest. 1994 Sep;94(3):1026–1036. doi: 10.1172/JCI117416. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kimura A., Harada H., Park J. E., Nishi H., Satoh M., Takahashi M., Hiroi S., Sasaoka T., Ohbuchi N., Nakamura T. Mutations in the cardiac troponin I gene associated with hypertrophic cardiomyopathy. Nat Genet. 1997 Aug;16(4):379–382. doi: 10.1038/ng0897-379. [DOI] [PubMed] [Google Scholar]
- MacRae C. A., Ghaisas N., Kass S., Donnelly S., Basson C. T., Watkins H. C., Anan R., Thierfelder L. H., McGarry K., Rowland E. Familial Hypertrophic cardiomyopathy with Wolff-Parkinson-White syndrome maps to a locus on chromosome 7q3. J Clin Invest. 1995 Sep;96(3):1216–1220. doi: 10.1172/JCI118154. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Maron B. J. Triggers for sudden cardiac death in the athlete. Cardiol Clin. 1996 May;14(2):195–210. doi: 10.1016/s0733-8651(05)70273-3. [DOI] [PubMed] [Google Scholar]
- McAuliffe J. J., Robbins J. Troponin T expression in normal and pressure-loaded fetal sheep heart. Pediatr Res. 1991 Jun;29(6):580–585. doi: 10.1203/00006450-199106010-00012. [DOI] [PubMed] [Google Scholar]
- Moolman-Smook J. C., Mayosi B., Brink P., Corfield V. A. Identification of a new missense mutation in MyBP-C associated with hypertrophic cardiomyopathy. J Med Genet. 1998 Mar;35(3):253–254. doi: 10.1136/jmg.35.3.253. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Moss R. L. Effects on shortening velocity of rabbit skeletal muscle due to variations in the level of thin-filament activation. J Physiol. 1986 Aug;377:487–505. doi: 10.1113/jphysiol.1986.sp016199. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ng W. A., Grupp I. L., Subramaniam A., Robbins J. Cardiac myosin heavy chain mRNA expression and myocardial function in the mouse heart. Circ Res. 1991 Jun;68(6):1742–1750. doi: 10.1161/01.res.68.6.1742. [DOI] [PubMed] [Google Scholar]
- Niimura H., Bachinski L. L., Sangwatanaroj S., Watkins H., Chudley A. E., McKenna W., Kristinsson A., Roberts R., Sole M., Maron B. J. Mutations in the gene for cardiac myosin-binding protein C and late-onset familial hypertrophic cardiomyopathy. N Engl J Med. 1998 Apr 30;338(18):1248–1257. doi: 10.1056/NEJM199804303381802. [DOI] [PubMed] [Google Scholar]
- Offer G., Moos C., Starr R. A new protein of the thick filaments of vertebrate skeletal myofibrils. Extractions, purification and characterization. J Mol Biol. 1973 Mar 15;74(4):653–676. doi: 10.1016/0022-2836(73)90055-7. [DOI] [PubMed] [Google Scholar]
- Okagaki T., Weber F. E., Fischman D. A., Vaughan K. T., Mikawa T., Reinach F. C. The major myosin-binding domain of skeletal muscle MyBP-C (C protein) resides in the COOH-terminal, immunoglobulin C2 motif. J Cell Biol. 1993 Nov;123(3):619–626. doi: 10.1083/jcb.123.3.619. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Palermo J., Gulick J., Colbert M., Fewell J., Robbins J. Transgenic remodeling of the contractile apparatus in the mammalian heart. Circ Res. 1996 Mar;78(3):504–509. doi: 10.1161/01.res.78.3.504. [DOI] [PubMed] [Google Scholar]
- Poetter K., Jiang H., Hassanzadeh S., Master S. R., Chang A., Dalakas M. C., Rayment I., Sellers J. R., Fananapazir L., Epstein N. D. Mutations in either the essential or regulatory light chains of myosin are associated with a rare myopathy in human heart and skeletal muscle. Nat Genet. 1996 May;13(1):63–69. doi: 10.1038/ng0596-63. [DOI] [PubMed] [Google Scholar]
- Rottbauer W., Gautel M., Zehelein J., Labeit S., Franz W. M., Fischer C., Vollrath B., Mall G., Dietz R., Kübler W. Novel splice donor site mutation in the cardiac myosin-binding protein-C gene in familial hypertrophic cardiomyopathy. Characterization Of cardiac transcript and protein. J Clin Invest. 1997 Jul 15;100(2):475–482. doi: 10.1172/JCI119555. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schwartz K. Familial hypertrophic cardiomyopathy. Nonsense versus missense mutations. Circulation. 1995 Jun 15;91(12):2865–2867. doi: 10.1161/01.cir.91.12.2865. [DOI] [PubMed] [Google Scholar]
- Seiler S. H., Fischman D. A., Leinwand L. A. Modulation of myosin filament organization by C-protein family members. Mol Biol Cell. 1996 Jan;7(1):113–127. doi: 10.1091/mbc.7.1.113. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sweitzer N. K., Moss R. L. Determinants of loaded shortening velocity in single cardiac myocytes permeabilized with alpha-hemolysin. Circ Res. 1993 Dec;73(6):1150–1162. doi: 10.1161/01.res.73.6.1150. [DOI] [PubMed] [Google Scholar]
- Thierfelder L., Watkins H., MacRae C., Lamas R., McKenna W., Vosberg H. P., Seidman J. G., Seidman C. E. Alpha-tropomyosin and cardiac troponin T mutations cause familial hypertrophic cardiomyopathy: a disease of the sarcomere. Cell. 1994 Jun 3;77(5):701–712. doi: 10.1016/0092-8674(94)90054-x. [DOI] [PubMed] [Google Scholar]
- Trinick J. Titin as a scaffold and spring. Cytoskeleton. Curr Biol. 1996 Mar 1;6(3):258–260. doi: 10.1016/s0960-9822(02)00472-4. [DOI] [PubMed] [Google Scholar]
- Vikstrom K. L., Factor S. M., Leinwand L. A. Mice expressing mutant myosin heavy chains are a model for familial hypertrophic cardiomyopathy. Mol Med. 1996 Sep;2(5):556–567. [PMC free article] [PubMed] [Google Scholar]
- Watkins H., Conner D., Thierfelder L., Jarcho J. A., MacRae C., McKenna W. J., Maron B. J., Seidman J. G., Seidman C. E. Mutations in the cardiac myosin binding protein-C gene on chromosome 11 cause familial hypertrophic cardiomyopathy. Nat Genet. 1995 Dec;11(4):434–437. doi: 10.1038/ng1295-434. [DOI] [PubMed] [Google Scholar]
- Watkins H., McKenna W. J., Thierfelder L., Suk H. J., Anan R., O'Donoghue A., Spirito P., Matsumori A., Moravec C. S., Seidman J. G. Mutations in the genes for cardiac troponin T and alpha-tropomyosin in hypertrophic cardiomyopathy. N Engl J Med. 1995 Apr 20;332(16):1058–1064. doi: 10.1056/NEJM199504203321603. [DOI] [PubMed] [Google Scholar]
- Watkins H. Multiple disease genes cause hypertrophic cardiomyopathy. Br Heart J. 1994 Dec;72(6 Suppl):S4–S9. doi: 10.1136/hrt.72.6_suppl.s4. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yu B., French J. A., Carrier L., Jeremy R. W., McTaggart D. R., Nicholson M. R., Hambly B., Semsarian C., Richmond D. R., Schwartz K. Molecular pathology of familial hypertrophic cardiomyopathy caused by mutations in the cardiac myosin binding protein C gene. J Med Genet. 1998 Mar;35(3):205–210. doi: 10.1136/jmg.35.3.205. [DOI] [PMC free article] [PubMed] [Google Scholar]