| Structural highlights
Disease
[MYPC3_HUMAN] Defects in MYBPC3 are the cause of familial hypertrophic cardiomyopathy type 4 (CMH4) [MIM:115197]. Familial hypertrophic cardiomyopathy is a hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
Function
[MYPC3_HUMAN] Thick filament-associated protein located in the crossbridge region of vertebrate striated muscle a bands. In vitro it binds MHC, F-actin and native thin filaments, and modifies the activity of actin-activated myosin ATPase. It may modulate muscle contraction or may play a more structural role.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Myosin-binding protein C (MyBP-C) is a myofibril-associated protein found in cardiac and skeletal muscle. The cardiac isoform (cMyBP-C) is subject to reversible phosphorylation and the surface-charge state of the protein is of keen interest with regard to understanding the inter-protein interactions that are implicated in its function. Diffraction data from the C1 domain of cMyBP-C were extended to 1.30 A resolution, where the <I/sigma(I)> of the diffraction data crosses 2.0, using intense synchrotron radiation. The protonation-state determinations were not above 2sigma (the best was 1.81sigma) and therefore an extrapolation is given, based on 100% data completeness and the average DPI, that a 3sigma determination could be possible if X-ray data could be measured to 1.02 A resolution. This might be possible via improved crystallization or multiple sample evaluation, e.g. using robotics or a yet more intense/collimated X-ray beam or combinations thereof. An alternative would be neutron protein crystallography at 2 A resolution, where it is estimated that for the unit-cell volume of the cMyBP-C C1 domain crystal a crystal volume of 0.10 mm3 would be needed with fully deuterated protein on LADI III. These efforts would optimally be combined in a joint X-ray and neutron model refinement.
An investigation into the protonation states of the C1 domain of cardiac myosin-binding protein C.,Fisher SJ, Helliwell JR, Khurshid S, Govada L, Redwood C, Squire JM, Chayen NE Acta Crystallogr D Biol Crystallogr. 2008 Jun;64(Pt 6):658-64. Epub 2008, May 14. PMID:18560154[21]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Gautel M, Zuffardi O, Freiburg A, Labeit S. Phosphorylation switches specific for the cardiac isoform of myosin binding protein-C: a modulator of cardiac contraction? EMBO J. 1995 May 1;14(9):1952-60. PMID:7744002
- ↑ Carrier L, Bonne G, Bahrend E, Yu B, Richard P, Niel F, Hainque B, Cruaud C, Gary F, Labeit S, Bouhour JB, Dubourg O, Desnos M, Hagege AA, Trent RJ, Komajda M, Fiszman M, Schwartz K. 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):427-34. PMID:9048664
- ↑ Niimura H, Bachinski LL, Sangwatanaroj S, Watkins H, Chudley AE, McKenna W, Kristinsson A, Roberts R, Sole M, Maron BJ, Seidman JG, Seidman CE. 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):1248-57. PMID:9562578
- ↑ Yu B, French JA, Carrier L, Jeremy RW, McTaggart DR, Nicholson MR, Hambly B, Semsarian C, Richmond DR, Schwartz K, Trent RJ. Molecular pathology of familial hypertrophic cardiomyopathy caused by mutations in the cardiac myosin binding protein C gene. J Med Genet. 1998 Mar;35(3):205-10. PMID:9541104
- ↑ Moolman-Smook JC, Mayosi B, Brink P, Corfield VA. Identification of a new missense mutation in MyBP-C associated with hypertrophic cardiomyopathy. J Med Genet. 1998 Mar;35(3):253-4. PMID:9541115
- ↑ Maron BJ, Niimura H, Casey SA, Soper MK, Wright GB, Seidman JG, Seidman CE. Development of left ventricular hypertrophy in adults in hypertrophic cardiomyopathy caused by cardiac myosin-binding protein C gene mutations. J Am Coll Cardiol. 2001 Aug;38(2):315-21. PMID:11499718
- ↑ Erdmann J, Raible J, Maki-Abadi J, Hummel M, Hammann J, Wollnik B, Frantz E, Fleck E, Hetzer R, Regitz-Zagrosek V. Spectrum of clinical phenotypes and gene variants in cardiac myosin-binding protein C mutation carriers with hypertrophic cardiomyopathy. J Am Coll Cardiol. 2001 Aug;38(2):322-30. PMID:11499719
- ↑ Daehmlow S, Erdmann J, Knueppel T, Gille C, Froemmel C, Hummel M, Hetzer R, Regitz-Zagrosek V. Novel mutations in sarcomeric protein genes in dilated cardiomyopathy. Biochem Biophys Res Commun. 2002 Oct 18;298(1):116-20. PMID:12379228
- ↑ Niimura H, Patton KK, McKenna WJ, Soults J, Maron BJ, Seidman JG, Seidman CE. Sarcomere protein gene mutations in hypertrophic cardiomyopathy of the elderly. Circulation. 2002 Jan 29;105(4):446-51. PMID:11815426
- ↑ Nanni L, Pieroni M, Chimenti C, Simionati B, Zimbello R, Maseri A, Frustaci A, Lanfranchi G. Hypertrophic cardiomyopathy: two homozygous cases with "typical" hypertrophic cardiomyopathy and three new mutations in cases with progression to dilated cardiomyopathy. Biochem Biophys Res Commun. 2003 Sep 19;309(2):391-8. PMID:12951062
- ↑ Richard P, Charron P, Carrier L, Ledeuil C, Cheav T, Pichereau C, Benaiche A, Isnard R, Dubourg O, Burban M, Gueffet JP, Millaire A, Desnos M, Schwartz K, Hainque B, Komajda M. Hypertrophic cardiomyopathy: distribution of disease genes, spectrum of mutations, and implications for a molecular diagnosis strategy. Circulation. 2003 May 6;107(17):2227-32. Epub 2003 Apr 21. PMID:12707239 doi:10.1161/01.CIR.0000066323.15244.54
- ↑ Erdmann J, Daehmlow S, Wischke S, Senyuva M, Werner U, Raible J, Tanis N, Dyachenko S, Hummel M, Hetzer R, Regitz-Zagrosek V. Mutation spectrum in a large cohort of unrelated consecutive patients with hypertrophic cardiomyopathy. Clin Genet. 2003 Oct;64(4):339-49. PMID:12974739
- ↑ Alders M, Jongbloed R, Deelen W, van den Wijngaard A, Doevendans P, Ten Cate F, Regitz-Zagrosek V, Vosberg HP, van Langen I, Wilde A, Dooijes D, Mannens M. The 2373insG mutation in the MYBPC3 gene is a founder mutation, which accounts for nearly one-fourth of the HCM cases in the Netherlands. Eur Heart J. 2003 Oct;24(20):1848-53. PMID:14563344
- ↑ Konno T, Shimizu M, Ino H, Matsuyama T, Yamaguchi M, Terai H, Hayashi K, Mabuchi T, Kiyama M, Sakata K, Hayashi T, Inoue M, Kaneda T, Mabuchi H. A novel missense mutation in the myosin binding protein-C gene is responsible for hypertrophic cardiomyopathy with left ventricular dysfunction and dilation in elderly patients. J Am Coll Cardiol. 2003 Mar 5;41(5):781-6. PMID:12628722
- ↑ Morner S, Richard P, Kazzam E, Hellman U, Hainque B, Schwartz K, Waldenstrom A. Identification of the genotypes causing hypertrophic cardiomyopathy in northern Sweden. J Mol Cell Cardiol. 2003 Jul;35(7):841-9. PMID:12818575
- ↑ Andersen PS, Havndrup O, Bundgaard H, Larsen LA, Vuust J, Pedersen AK, Kjeldsen K, Christiansen M. Genetic and phenotypic characterization of mutations in myosin-binding protein C (MYBPC3) in 81 families with familial hypertrophic cardiomyopathy: total or partial haploinsufficiency. Eur J Hum Genet. 2004 Aug;12(8):673-7. PMID:15114369 doi:10.1038/sj.ejhg.5201190
- ↑ Van Driest SL, Vasile VC, Ommen SR, Will ML, Tajik AJ, Gersh BJ, Ackerman MJ. Myosin binding protein C mutations and compound heterozygosity in hypertrophic cardiomyopathy. J Am Coll Cardiol. 2004 Nov 2;44(9):1903-10. PMID:15519027 doi:S0735-1097(04)01614-6
- ↑ Song L, Zou Y, Wang J, Wang Z, Zhen Y, Lou K, Zhang Q, Wang X, Wang H, Li J, Hui R. Mutations profile in Chinese patients with hypertrophic cardiomyopathy. Clin Chim Acta. 2005 Jan;351(1-2):209-16. PMID:15563892 doi:10.1016/j.cccn.2004.09.016
- ↑ Ingles J, Doolan A, Chiu C, Seidman J, Seidman C, Semsarian C. Compound and double mutations in patients with hypertrophic cardiomyopathy: implications for genetic testing and counselling. J Med Genet. 2005 Oct;42(10):e59. PMID:16199542 doi:10.1136/jmg.2005.033886
- ↑ Morita H, Rehm HL, Menesses A, McDonough B, Roberts AE, Kucherlapati R, Towbin JA, Seidman JG, Seidman CE. Shared genetic causes of cardiac hypertrophy in children and adults. N Engl J Med. 2008 May 1;358(18):1899-908. doi: 10.1056/NEJMoa075463. Epub 2008, Apr 9. PMID:18403758 doi:10.1056/NEJMoa075463
- ↑ Fisher SJ, Helliwell JR, Khurshid S, Govada L, Redwood C, Squire JM, Chayen NE. An investigation into the protonation states of the C1 domain of cardiac myosin-binding protein C. Acta Crystallogr D Biol Crystallogr. 2008 Jun;64(Pt 6):658-64. Epub 2008, May 14. PMID:18560154 doi:10.1107/S0907444908008792
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