MYH6

gene
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Summary

MYH6 (myosin heavy chain 6, HGNC:7576) is a protein-coding gene on chromosome 14q11.2, encoding Myosin-6 (P13533). Muscle contraction.

Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located approximately 4kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. Mutations in this gene cause familial hypertrophic cardiomyopathy and atrial septal defect 3.

Source: NCBI Gene 4624 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): MYH-6 related congenital heart defects (Definitive, ClinGen) — +7 more curated relationships
  • GWAS associations: 84
  • Clinical variants (ClinVar): 2,466 total — 7 pathogenic, 7 likely-pathogenic
  • Phenotypes (HPO): 61
  • Druggable target: yes
  • MANE Select transcript: NM_002471

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:7576
Approved symbolMYH6
Namemyosin heavy chain 6
Location14q11.2
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000197616
Ensembl biotypeprotein_coding
OMIM160710
Entrez4624

Gene structure

Transcript identifiers

Ensembl transcripts: 44 — 42 protein_coding, 2 retained_intron

ENST00000405093, ENST00000557461, ENST00000651452, ENST00000968250, ENST00000968251, ENST00000968252, ENST00000968253, ENST00000968254, ENST00000968255, ENST00000968256, ENST00000968257, ENST00000968258, ENST00000968259, ENST00000968260, ENST00000968261, ENST00000968262, ENST00000968263, ENST00000968264, ENST00000968265, ENST00000968266, ENST00000968267, ENST00000968268, ENST00000968269, ENST00000968270, ENST00000968271, ENST00000968272, ENST00000968273, ENST00000968274, ENST00000968275, ENST00000968276, ENST00000968277, ENST00000968278, ENST00000968279, ENST00000968280, ENST00000968281, ENST00000968282, ENST00000968283, ENST00000968284, ENST00000968285, ENST00000968286, ENST00000968287, ENST00000968288, ENST00000968289, ENST00000968290

RefSeq mRNA: 1 — MANE Select: NM_002471 NM_002471

CCDS: CCDS9600

Canonical transcript exons

ENST00000405093 — 39 exons

ExonStartEnd
ENSE000010997182338815523388338
ENSE000010997332339406823394323
ENSE000010997372339366623393908
ENSE000010997432338752923387653
ENSE000010997472339628423396420
ENSE000010997512339872823399037
ENSE000010997732338959323389719
ENSE000010997872339256223392652
ENSE000010997902339754323397613
ENSE000010997942339717023397257
ENSE000015500302338198723382063
ENSE000015983372338631523386623
ENSE000016148022338444223384717
ENSE000016276112340025623400426
ENSE000016276362338322523383320
ENSE000016525872338491623385041
ENSE000016637032339334223393518
ENSE000016685112340825323408273
ENSE000016786772338775823387923
ENSE000016867322339696323397080
ENSE000017127832338939323389511
ENSE000017284642339005723390446
ENSE000017384102338592823386131
ENSE000017474832339291223393057
ENSE000017694002339669423396817
ENSE000017757752340757623407608
ENSE000017870042338242823382562
ENSE000018042522338885923389055
ENSE000034755842340429623404388
ENSE000034794982340522323405379
ENSE000034830662340269723402800
ENSE000034927482340246423402602
ENSE000035026992340562723405770
ENSE000035360412340070923400977
ENSE000035478492340702323407236
ENSE000036185512340371523403778
ENSE000036641232340471123404822
ENSE000036789972340510023405127
ENSE000036915052340334823403446

Expression profiles

Bgee: expression breadth ubiquitous, 154 present calls, max score 100.00.

FANTOM5 (CAGE): breadth tissue_specific, TPM avg 2.3945 / max 876.8722, expressed in 73 samples.

FANTOM5 promoters (12 alternative TSS)

Promoter IDTPM avgSamples expressed
1423972.088565
1423710.061516
2071620.048814
1423690.039311
1423740.029011
1423640.028110
1423950.02547
1423680.02038
1423730.01979
1423960.01357

Top tissues by expression

289 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
cardiac muscle of right atriumUBERON:0003379100.00gold quality
cardiac atriumUBERON:000208199.95gold quality
vena cavaUBERON:000408799.94gold quality
right atrium auricular regionUBERON:000663199.94gold quality
myocardiumUBERON:000234999.80gold quality
heart right ventricleUBERON:000208099.39gold quality
left ventricle myocardiumUBERON:000656699.24gold quality
apex of heartUBERON:000209899.10gold quality
cardiac ventricleUBERON:000208299.00gold quality
heart left ventricleUBERON:000208498.98gold quality
gluteal muscleUBERON:000200098.32gold quality
diaphragmUBERON:000110395.68gold quality
triceps brachiiUBERON:000150994.78gold quality
gastrocnemiusUBERON:000138894.75gold quality
vastus lateralisUBERON:000137994.32gold quality
heartUBERON:000094894.31gold quality
skeletal muscle tissue of biceps brachiiUBERON:000450294.16gold quality
quadriceps femorisUBERON:000137793.89gold quality
biceps brachiiUBERON:000150793.85gold quality
muscle organUBERON:000163092.68gold quality
tibialis anteriorUBERON:000138592.66gold quality
skeletal muscle tissueUBERON:000113492.43gold quality
muscle of legUBERON:000138392.39gold quality
deltoidUBERON:000147692.06gold quality
body of tongueUBERON:001187691.61gold quality
skeletal muscle tissue of rectus abdominisUBERON:000451191.00gold quality
hindlimb stylopod muscleUBERON:000425290.96gold quality
muscle tissueUBERON:000238588.79gold quality
tongueUBERON:000172382.12gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047377.55gold quality

Single-cell (SCXA)

Detected in 2 experiment(s), a significant marker in 0.

ExperimentMarker?Max mean expression
E-MTAB-11268no758.34
E-ANND-3no0.00

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): ARRB2, ATF3, EEF1A1, EGR1, ELK3, FOS, FOXG1, FOXP1, GATA4, GATA6, GSK3B, HAND2, HESX1, JARID2, JUN, MAZ, MEF2A, MEF2C, MYC, NKX2-5, NR2F2, PAX1, PHF5A, PLAGL1, PURA, PURB, SMAD1, SRF, TBX5, TCF12, TEAD1, TEF, THRA, THRB, YY1

Literature-anchored findings (GeneRIF, showing 39)

  • We suggest from those results that Mo25 and Fray operate together or in the same pathway in Drosophila asymmetric processes, and that their function counterbalances Lkb1. (PMID:18054329)
  • This study proposed that normally functioning nerves generate extracellular solutes that are removed by Ncc69 under the control of Fray. (PMID:21125654)
  • The Drosophila WNK-SPAK/OSR1-NKCC cascade is an essential molecular pathway for osmoregulation. (PMID:25086033)
  • The glial sodium-potassium-2-chloride cotransporter is required for synaptic transmission in the Drosophila visual system. (PMID:30792494)
  • results show that PUR proteins are capable of binding to alpha-MHC mRNA and attenuate its translational efficiency; also show robust expression of PUR proteins in failing hearts where alpha-MHC mRNA levels are suppressed (PMID:12933792)
  • Mutation in myosin heavy chain 6 causes atrial septal defect (PMID:15735645)
  • Three heterozygous MYH6 missense mutations were identified in dilated cardiomyopathy probands (P830L, A1004S, and E1457K; 4.3% of probands). A Q1065H mutation was detected in 1 of 21 hypertrophic cardiomyopathy probands. (PMID:15998695)
  • the large step of dimeric myosin VI is primarily made possible by a medial tail in each monomer that forms a rare single alpha-helix of approximately 10 nm, which is anchored to the calmodulin-bound IQ domain by a globular proximal tail. (PMID:18511944)
  • Our data provide evidence for a novel form of calcium-independent positive inotropy in failing cardiac myocytes by fast alpha-myosin motor protein gene transfer. (PMID:19801488)
  • The mutations in MYH6 cause when a genetic cause can be identified, which has estimated to occur in 65% of hypertrophic cardiomyopathy. (PMID:20215591)
  • data indicate that functional variants of MYH6 are associated with cardiac malformations in addition to atrial septal defect and provide a novel potential mechanism (PMID:20656787)
  • the lifetime risk of being diagnosed with sick sinus syndrome is around 6% for non-carriers of c.2161C>T but is approximately 50% for carriers of the c.2161C>T variant (PMID:21378987)
  • the alpha-isoform of myosin heavy chain is the pathogenic autoantigen for CD4+ T cells in myocarditis (PMID:21436590)
  • Perturbations in the MYH6 head domain seem to play a major role in the genetic origin of familial Secundum-type atrial septal defects. (PMID:22194935)
  • R1165C mutation in MYH9 gene is associated with macroscopic hematuria and presenile cataract. (PMID:22627578)
  • Data from molecular dynamic/docking simulations suggest that actin-myosin binding free energy accepts contributions from both electrostatic and nonpolar forces; studies compare cardiac alpha-myosin, beta-myosin, and fast skeletal muscle myosin. (PMID:24224850)
  • The novel MYH6 mutation delE933 causes both structural damage of the sarcomere and functional impairments on atrial action propagation. (PMID:25717017)
  • human alpha- and beta-cardiac myosin, as well as the mutants, show opposite mechanical and enzymatic phenotypes with respect to each other. (PMID:25937279)
  • Data show that compound heterozygosity for recessive myosin heavy chain 6 (MYH6) mutations in patients with hypoplastic left heart and reduced systemic right ventricular ejection fraction. (PMID:26085007)
  • The etiology of MYH6-associated HLHS can be informed using iPSCs. (PMID:27789736)
  • the P830L and A1004S alphaMHC mutations alter myocyte contractility in completely different ways while at the same preserving peak intracellular calcium (PMID:28088328)
  • We developed an human cardiac alpha-myosin -induced myocarditis model in human HLA-DR4 transgenic mice that lack all mouse MHCII genes. (PMID:28431892)
  • Rare inherited and de novo variants in 2,871 congenital heart disease probands identified GDF1, MYH6, and FLT4 as causative genes. (PMID:28991257)
  • Three loci with high mutation frequencies, the 138665410 FOXL2 gene variant, the 23862952 MYH6 gene variant, and the 71098693 HYDIN gene variant were found to be significantly associated with sporadic Atrial Septal Defect (P<0.05); variants in FOXL2 and MYH6 were found in patients with isolated, sporadic Atrial Septal Defect (P<5x10-4). (PMID:29505555)
  • The p.Arg721Trp in MYH6 causes a cardiac syndrome with highly variable expressivity and emphasizes the importance of sarcomere integrity for cardiac development and function. (PMID:29590334)
  • Case Reports: venosus defect caused directly by MYH6 stop codon mutation. (PMID:29969989)
  • Novel Mutation in MYH6 in 2 Unrelated Chinese Han Families With Familial Atrial Septal Defect. (PMID:31638415)
  • Genetic Etiology of Left-Sided Obstructive Heart Lesions: A Story in Development. (PMID:33432820)
  • Long-Read Sequence Confirmed a Large Deletion Including MYH6 and MYH7 in an Infant of Atrial Septal Defect and Atrial Arrhythmias. (PMID:34384224)
  • Novel insertion mutation (Arg1822_Glu1823dup) in MYH6 coiled-coil domain causing familial atrial septal defect. (PMID:34481090)
  • Association of the MYH6 Gene Polymorphism with the Risk of Atrial Fibrillation and Warfarin Anticoagulation Therapy. (PMID:34515533)
  • Identification of MYH6 as the potential gene for human ischaemic cardiomyopathy. (PMID:34697898)
  • Identification and functional analysis of variants of MYH6 gene promoter in isolated ventricular septal defects. (PMID:36209093)
  • Identification of the prognostic value of Th1/Th2 ratio and a novel prognostic signature in basal-like breast cancer. (PMID:36694223)
  • alpha-myosin heavy chain lactylation maintains sarcomeric structure and function and alleviates the development of heart failure. (PMID:37443257)
  • Tetralogy of Fallot: variants of MYH6 gene promoter and cellular functional analyses. (PMID:38135727)
  • Variants of the promoter of MYH6 gene in congenital isolated and sporadic patent ductus arteriosus: case-control study and cellular functional analyses. (PMID:38340456)
  • Heart proteomic profiling discovers MYH6 and COX5B as biomarkers for sudden unexplained death. (PMID:38971138)
  • MYH6 suppresses tumor progression by downregulating KIT expression in human prostate cancer. (PMID:39181964)

Cross-species orthologs

9 orthologs

OrganismSymbolGene ID
danio_reriomyh7ENSDARG00000079564
danio_rerioENSDARG00000098747
danio_reriosmyhc1ENSDARG00000099959
danio_rerioENSDARG00000103837
danio_reriosmyhc2ENSDARG00000103969
danio_reriosmyhc3ENSDARG00000114031
danio_rerioENSDARG00000114818
mus_musculusMyh6ENSMUSG00000040752
rattus_norvegicusMyh6ENSRNOG00000025757

Paralogs (44): MYH13 (ENSG00000006788), MYO16 (ENSG00000041515), MYO9A (ENSG00000066933), MYO3B (ENSG00000071909), MYH7B (ENSG00000078814), MYO15A (ENSG00000091536), MYH7 (ENSG00000092054), MYO3A (ENSG00000095777), MYO9B (ENSG00000099331), MYH9 (ENSG00000100345), MYH14 (ENSG00000105357), MYH1 (ENSG00000109061), MYH3 (ENSG00000109063), MYH2 (ENSG00000125414), MYO1B (ENSG00000128641), MYO5C (ENSG00000128833), CGNL1 (ENSG00000128849), MYH8 (ENSG00000133020), MYH10 (ENSG00000133026), MYH11 (ENSG00000133392), MYO18B (ENSG00000133454), CCDC102A (ENSG00000135736), MYO1G (ENSG00000136286), MYO7A (ENSG00000137474), MYO1F (ENSG00000142347), CGN (ENSG00000143375), TMF1 (ENSG00000144747), MYH15 (ENSG00000144821), MYO10 (ENSG00000145555), CCDC102B (ENSG00000150636), MYO1E (ENSG00000157483), CCDC158 (ENSG00000163749), MYO1A (ENSG00000166866), MYO5B (ENSG00000167306), MYO7B (ENSG00000169994), MYO1H (ENSG00000174527), MYO1D (ENSG00000176658), MYO18A (ENSG00000196535), MYO6 (ENSG00000196586), MYO5A (ENSG00000197535)

Protein

Protein identifiers

Myosin-6P13533 (reviewed: P13533)

Alternative names: Myosin heavy chain 6, Myosin heavy chain, cardiac muscle alpha isoform

All UniProt accessions (1): P13533

UniProt curated annotations — full annotation on UniProt →

Function. Muscle contraction.

Subunit / interactions. Muscle myosin is a hexameric protein that consists of 2 heavy chain subunits (MHC), 2 alkali light chain subunits (MLC) and 2 regulatory light chain subunits (MLC-2).

Subcellular location. Cytoplasm. Myofibril.

Disease relevance. Atrial septal defect 3 (ASD3) [MIM:614089] A congenital heart malformation characterized by incomplete closure of the wall between the atria resulting in blood flow from the left to the right atria. The disease is caused by variants affecting the gene represented in this entry. Cardiomyopathy, familial hypertrophic, 14 (CMH14) [MIM:613251] 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. The disease is caused by variants affecting the gene represented in this entry. Cardiomyopathy, dilated, 1EE (CMD1EE) [MIM:613252] A disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death. The disease is caused by variants affecting the gene represented in this entry. Sick sinus syndrome 3 (SSS3) [MIM:614090] The term ‘sick sinus syndrome’ encompasses a variety of conditions caused by sinus node dysfunction. The most common clinical manifestations are syncope, presyncope, dizziness, and fatigue. Electrocardiogram typically shows sinus bradycardia, sinus arrest, and/or sinoatrial block. Episodes of atrial tachycardias coexisting with sinus bradycardia (’tachycardia-bradycardia syndrome’) are also common in this disorder. SSS occurs most often in the elderly associated with underlying heart disease or previous cardiac surgery, but can also occur in the fetus, infant, or child without heart disease or other contributing factors. Disease susceptibility is associated with variants affecting the gene represented in this entry. The lifetime risk of being diagnosed with sick sinus syndrome is higher for carriers of variant p.Arg721Trp than for non-carriers.

Domain organisation. The rodlike tail sequence is highly repetitive, showing cycles of a 28-residue repeat pattern composed of 4 heptapeptides, characteristic for alpha-helical coiled coils. Limited proteolysis of myosin heavy chain produces 1 light meromyosin (LMM) and 1 heavy meromyosin (HMM). HMM can be further cleaved into 2 globular subfragments (S1) and 1 rod-shaped subfragment (S2).

Miscellaneous. The cardiac alpha isoform is a ‘fast’ ATPase myosin, while the beta isoform is a ‘slow’ ATPase.

Similarity. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family.

RefSeq proteins (1): NP_002462* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001609Myosin_head_motor_dom-likeDomain
IPR002928Myosin_tailDomain
IPR004009SH3_MyosinDomain
IPR008989Myosin_S1_NHomologous_superfamily
IPR014751XRCC4-like_CHomologous_superfamily
IPR027417P-loop_NTPaseHomologous_superfamily
IPR036961Kinesin_motor_dom_sfHomologous_superfamily

Pfam: PF00063, PF01576, PF02736

UniProt features (64 total): sequence conflict 22, sequence variant 17, modified residue 13, region of interest 4, domain 3, compositionally biased region 2, chain 1, binding site 1, coiled-coil region 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P13533-F174.910.10

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Ligand- & substrate-binding residues (1): 178–185

Post-translational modifications (13): 129, 379, 417, 1139, 1261, 1271, 1277, 1284, 1309, 1310, 1311, 1512, 1515

Function

Pathways and Gene Ontology

Reactome pathways

2 pathways

IDPathway
R-HSA-390522Striated Muscle Contraction
R-HSA-397014Muscle contraction

MSigDB gene sets: 315 (showing top): GOBP_CARDIAC_CHAMBER_DEVELOPMENT, GOBP_EMBRYO_DEVELOPMENT_ENDING_IN_BIRTH_OR_EGG_HATCHING, GOBP_MUSCLE_TISSUE_DEVELOPMENT, GOBP_REGULATION_OF_BLOOD_PRESSURE, GOBP_CIRCULATORY_SYSTEM_PROCESS, GOBP_CARDIAC_CHAMBER_MORPHOGENESIS, GOBP_REGULATION_OF_DEVELOPMENTAL_GROWTH, KAAB_HEART_ATRIUM_VS_VENTRICLE_UP, GOBP_GROWTH, GOBP_STRIATED_MUSCLE_CELL_DIFFERENTIATION, KEGG_TIGHT_JUNCTION, GOBP_ORGANOPHOSPHATE_METABOLIC_PROCESS, GOBP_SARCOMERE_ORGANIZATION, GNF2_MYL3, GOBP_CARBOHYDRATE_DERIVATIVE_METABOLIC_PROCESS

GO Biological Process (21): in utero embryonic development (GO:0001701), regulation of the force of heart contraction (GO:0002026), regulation of heart rate (GO:0002027), muscle contraction (GO:0006936), striated muscle contraction (GO:0006941), adult heart development (GO:0007512), visceral muscle development (GO:0007522), regulation of heart contraction (GO:0008016), regulation of blood pressure (GO:0008217), cardiac muscle hypertrophy in response to stress (GO:0014898), muscle filament sliding (GO:0030049), myofibril assembly (GO:0030239), sarcomere organization (GO:0045214), ATP metabolic process (GO:0046034), atrial cardiac muscle tissue morphogenesis (GO:0055009), ventricular cardiac muscle tissue morphogenesis (GO:0055010), cardiac muscle cell development (GO:0055013), cardiac muscle contraction (GO:0060048), regulation of heart growth (GO:0060420), muscle system process (GO:0003012), actin filament-based movement (GO:0030048)

GO Molecular Function (9): microfilament motor activity (GO:0000146), calmodulin binding (GO:0005516), ATP binding (GO:0005524), myosin phosphatase activity (GO:0017018), protein kinase binding (GO:0019901), actin filament binding (GO:0051015), nucleotide binding (GO:0000166), cytoskeletal motor activity (GO:0003774), actin binding (GO:0003779)

GO Cellular Component (10): stress fiber (GO:0001725), cytoplasm (GO:0005737), cytosol (GO:0005829), muscle myosin complex (GO:0005859), myosin complex (GO:0016459), myosin II complex (GO:0016460), myofibril (GO:0030016), sarcomere (GO:0030017), Z disc (GO:0030018), myosin filament (GO:0032982)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Muscle contraction1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure4
regulation of biological quality3
regulation of heart contraction2
muscle contraction2
heart contraction2
actomyosin structure organization2
striated muscle cell development2
cardiac muscle tissue morphogenesis2
contractile muscle fiber2
myosin complex2
chordate embryonic development1
muscle system process1
heart development1
muscle organ development1
regulation of blood circulation1
blood circulation1
muscle hypertrophy in response to stress1
cardiac muscle hypertrophy1
cardiac muscle adaptation1
actin-myosin filament sliding1
cellular component assembly involved in morphogenesis1
supramolecular fiber organization1
membraneless organelle assembly1
myofibril assembly1
purine ribonucleotide metabolic process1
purine ribonucleoside triphosphate metabolic process1
cardiac atrium morphogenesis1
atrial cardiac muscle tissue development1
cardiac ventricle morphogenesis1
ventricular cardiac muscle tissue development1
cardiac cell development1
cardiac muscle cell differentiation1
striated muscle contraction1
regulation of organ growth1
heart growth1
regulation of multicellular organismal development1
system process1
cytoskeletal motor activity1
polypeptide conformation or assembly isomerase activity1
ATP-dependent activity1

Protein interactions and networks

STRING

3014 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
MYH6TBX5Q99593909
MYH6TNNT2P45379900
MYH6MYBPC3Q14896886
MYH6MYL3P08590874
MYH6TNNI3P19429861
MYH6MYL2P10916859
MYH6ACTC1P04270859
MYH6NPPAP01160838
MYH6GATA4P43694822
MYH6MYOGP15173816
MYH6ACTN2P35609812
MYH6TTNQ8WZ42812
MYH6MYOD1P15172805
MYH6BMP10O95393805
MYH6NKX2-5P52952794

IntAct

40 interactions, top by confidence:

ABTypeScore
PRKAG2PRKAB2psi-mi:“MI:0914”(association)0.730
CFTRESYT2psi-mi:“MI:0914”(association)0.710
HSPB8VWA8psi-mi:“MI:0914”(association)0.530
repMYH6psi-mi:“MI:0194”(cleavage reaction)0.440
HSPB2MYH6psi-mi:“MI:0915”(physical association)0.370
LRRC39MYH6psi-mi:“MI:0915”(physical association)0.370
MYH6ELOCpsi-mi:“MI:0914”(association)0.350
TMEM132AWWP2psi-mi:“MI:0914”(association)0.350
Brca1SMCHD1psi-mi:“MI:0914”(association)0.350
MYH6BDP1psi-mi:“MI:0914”(association)0.350
SORT1SH3PXD2Bpsi-mi:“MI:0914”(association)0.350
PPP1CAACO2psi-mi:“MI:0914”(association)0.350
HIF1AMYL1psi-mi:“MI:0914”(association)0.350
PRKACBMYL1psi-mi:“MI:0914”(association)0.350
CFTRMYH7Bpsi-mi:“MI:0914”(association)0.350
ABTB2IFT56psi-mi:“MI:0914”(association)0.350
LZTR1CKMpsi-mi:“MI:0914”(association)0.350
MYH3MYH6psi-mi:“MI:0914”(association)0.350
LATS1ATP2A1psi-mi:“MI:0914”(association)0.350
FBXL14MYH7Bpsi-mi:“MI:0914”(association)0.350
MAGEB3MYH7Bpsi-mi:“MI:0914”(association)0.350
MFGE8MYH7Bpsi-mi:“MI:0914”(association)0.350

BioGRID (65): ACTN2 (Co-fractionation), MYH6 (Co-fractionation), MYH6 (Co-fractionation), TPM2 (Co-fractionation), MYH6 (Two-hybrid), HMGN1 (Affinity Capture-MS), MBP (Affinity Capture-MS), MYH6 (Affinity Capture-MS), MYH6 (Affinity Capture-MS), NSF (Affinity Capture-MS), MAP2K3 (Affinity Capture-MS), TCEB1 (Affinity Capture-MS), TMSB4X (Affinity Capture-MS), UMPS (Affinity Capture-MS), MCM3AP (Affinity Capture-MS)

ESM2 similar proteins: A2AQP0, A5PF48, A7E2Y1, F1PT61, F4IUG9, F4JM19, O08638, P02563, P02564, P02566, P02567, P08799, P10568, P11055, P12844, P12845, P12847, P12883, P13533, P13539, P13540, P13541, P24733, P35749, P49824, P79293, P97479, Q02566, Q076A3, Q076A4, Q076A5, Q13402, Q23979, Q29P71, Q29RW1, Q60LV4, Q8MJU9, Q8MJV0, Q8N1T3, Q90339

Diamond homologs: A2AQP0, A7E2Y1, F1PT61, F4I507, F4I5Q6, F4IVR7, G3UW82, K7U9N8, O08638, O14157, O94477, P02563, P02564, P02565, P02566, P02567, P04461, P05659, P05661, P08799, P08964, P10587, P11055, P12844, P12845, P12847, P12882, P12883, P13533, P13535, P13538, P13539, P13540, P13541, P13542, P14105, P19524, P21271, P24733, P32492

SIGNOR signaling

3 interactions.

AEffectBMechanism
ELK3“down-regulates quantity by repression”MYH6“transcriptional regulation”
PURB“down-regulates quantity by repression”MYH6“transcriptional regulation”
PURA“down-regulates quantity by repression”MYH6“transcriptional regulation”

Disease & clinical

Clinical variants and AI predictions

ClinVar

2466 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic7
Likely pathogenic7
Uncertain significance1430
Likely benign778
Benign48

Top pathogenic / likely-pathogenic (14)

Variant IDHGVSClassification
14148NM_002471.4(MYH6):c.2459T>A (p.Ile820Asn)Pathogenic
14150NM_002471.4(MYH6):c.2489C>T (p.Pro830Leu)Pathogenic
217832NM_002471.4(MYH6):c.3193dup (p.Gln1065fs)Pathogenic
2817839NM_002471.4(MYH6):c.4034T>C (p.Leu1345Pro)Pathogenic
520533NM_002471.4(MYH6):c.735T>G (p.Phe245Leu)Pathogenic
521391NM_002471.4(MYH6):c.2462_2469del (p.Arg821fs)Pathogenic
561059NM_002471.4(MYH6):c.1410+1G>APathogenic
2574005NM_002471.4(MYH6):c.1962+2T>CLikely pathogenic
2576995NM_002471.4(MYH6):c.1378dup (p.Val460fs)Likely pathogenic
2692441NM_002471.4(MYH6):c.1223G>A (p.Gly408Asp)Likely pathogenic
3366965NM_002471.4(MYH6):c.5164-2A>GLikely pathogenic
4292327NM_002471.4(MYH6):c.4651-1G>ALikely pathogenic
521390NM_002471.4(MYH6):c.2162G>A (p.Arg721Gln)Likely pathogenic
691662NM_002471.4(MYH6):c.1399G>T (p.Glu467Ter)Likely pathogenic

SpliceAI

4300 predictions. Top by Δscore:

VariantEffectΔscore
14:23382423:CCCA:Cdonor_loss1.0000
14:23382424:CCA:Cdonor_loss1.0000
14:23382425:CACCT:Cdonor_loss1.0000
14:23382426:A:Tdonor_loss1.0000
14:23382463:TGTTG:Tdonor_gain1.0000
14:23382558:TCCTC:Tacceptor_gain1.0000
14:23382559:CCTCC:Cacceptor_gain1.0000
14:23382560:CTC:Cacceptor_gain1.0000
14:23382561:TC:Tacceptor_gain1.0000
14:23382562:CC:Cacceptor_gain1.0000
14:23382562:CCTGT:Cacceptor_loss1.0000
14:23382563:C:CCacceptor_gain1.0000
14:23382565:G:Cacceptor_gain1.0000
14:23382565:G:GCacceptor_gain1.0000
14:23382575:A:Tacceptor_gain1.0000
14:23383219:A:Cdonor_gain1.0000
14:23383220:CTCA:Cdonor_loss1.0000
14:23383222:CAC:Cdonor_loss1.0000
14:23383223:A:ACdonor_gain1.0000
14:23383223:ACC:Adonor_loss1.0000
14:23383223:ACCG:Adonor_gain1.0000
14:23383223:ACCGC:Adonor_gain1.0000
14:23383224:C:CAdonor_gain1.0000
14:23383224:CCG:Cdonor_gain1.0000
14:23383224:CCGC:Cdonor_gain1.0000
14:23383224:CCGCC:Cdonor_gain1.0000
14:23383317:CTGT:Cacceptor_gain1.0000
14:23383318:TGT:Tacceptor_gain1.0000
14:23383319:GTCTG:Gacceptor_loss1.0000
14:23383320:TC:Tacceptor_loss1.0000

AlphaMissense

12880 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
14:23384623:A:GL1795P1.000
14:23388246:A:GL1423P1.000
14:23388310:C:GA1402P1.000
14:23394262:A:GW831R1.000
14:23394262:A:TW831R1.000
14:23397014:A:CI706S1.000
14:23397017:C:GR705P1.000
14:23397020:A:TI704N1.000
14:23397023:C:AG703V1.000
14:23397023:C:TG703D1.000
14:23397024:C:AG703C1.000
14:23397024:C:GG703R1.000
14:23397027:C:TE702K1.000
14:23397035:C:AG699V1.000
14:23397035:C:TG699D1.000
14:23397036:C:AG699C1.000
14:23397036:C:GG699R1.000
14:23397037:A:CN698K1.000
14:23397037:A:TN698K1.000
14:23397040:G:CC697W1.000
14:23397041:C:TC697Y1.000
14:23397042:A:GC697R1.000
14:23397047:A:GL695P1.000
14:23397047:A:TL695Q1.000
14:23397049:C:AQ694H1.000
14:23397049:C:GQ694H1.000
14:23397059:A:TV691D1.000
14:23397198:G:CC674W1.000
14:23397199:C:TC674Y1.000
14:23397200:A:GC674R1.000

dbSNP variants (sampled 300 via entrez): RS1000016502 (14:23393152 T>C), RS1000052881 (14:23400907 C>T), RS1000085018 (14:23400596 C>T), RS1000194650 (14:23398038 G>A), RS1000288854 (14:23394464 T>C), RS1000380817 (14:23405446 C>A,T), RS1000392750 (14:23408797 G>A), RS1000482587 (14:23398241 C>G,T), RS1000605442 (14:23396232 C>T), RS1001110348 (14:23383020 A>G), RS1001135568 (14:23385170 T>C), RS1001177952 (14:23407353 G>A), RS1001192248 (14:23399374 C>T), RS1001288444 (14:23401214 C>T), RS1001378340 (14:23404624 A>G)

Disease associations

OMIM: gene MIM:160710 | disease phenotypes: MIM:613251, MIM:613252, MIM:192600, MIM:614089, MIM:614090, MIM:115195, MIM:194200, MIM:601144, MIM:115080, MIM:604169, MIM:609040, MIM:241550, MIM:115200

GenCC curated gene-disease

DiseaseClassificationInheritance
MYH-6 related congenital heart defectsDefinitiveAutosomal dominant
hypertrophic cardiomyopathy 14StrongAutosomal dominant
atrial septal defectStrongAutosomal dominant
Keppen-Lubinsky syndromeModerateAutosomal dominant
familial isolated dilated cardiomyopathySupportiveAutosomal dominant
atrial septal defect 3LimitedAutosomal dominant

ClinGen Gene-Disease Validity (3)

Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.

DiseaseClassificationInheritance
MYH-6 related congenital heart defectsDefinitiveAD
dilated cardiomyopathy 1EELimitedAD
hypertrophic cardiomyopathyDisputedAD

Mondo (34): hypertrophic cardiomyopathy 14 (MONDO:0013197), dilated cardiomyopathy 1EE (MONDO:0013198), hypertrophic cardiomyopathy (MONDO:0005045), hypertrophic cardiomyopathy 1 (MONDO:0008647), atrial septal defect 3 (MONDO:0013567), sick sinus syndrome 3, susceptibility to (MONDO:0013568), cardiomyopathy (MONDO:0004994), hypertrophic cardiomyopathy 2 (MONDO:0007266), hemiplegia (MONDO:0001170), dilated cardiomyopathy (MONDO:0005021), migraine disorder (MONDO:0005277), ventricular tachycardia (MONDO:0005477), Wolff-Parkinson-White syndrome (MONDO:0008685), familial hypertrophic cardiomyopathy (MONDO:0024573), long QT syndrome (MONDO:0002442)

Orphanet (17): Familial isolated dilated cardiomyopathy (Orphanet:154), Rare hypertrophic cardiomyopathy (Orphanet:217569), Interatrial communication (Orphanet:1478), Hereditary sick sinus syndrome (Orphanet:166282), Rare cardiomyopathy (Orphanet:167848), Dilated cardiomyopathy (Orphanet:217604), Rare familial disorder with hypertrophic cardiomyopathy (Orphanet:99739), Brugada syndrome (Orphanet:130), Hereditary progressive cardiac conduction defect (Orphanet:871), Left ventricular noncompaction (Orphanet:54260), Hypoplastic left heart syndrome (Orphanet:2248), Familial dilated cardiomyopathy (Orphanet:217607), Familial dilated cardiomyopathy with conduction defect due to LMNA mutation (Orphanet:300751), Restrictive cardiomyopathy (Orphanet:217632), Inherited arrhythmogenic cardiomyopathy (Orphanet:247)

HPO phenotypes

61 total (30 of 61 shown, HPO-id order):

HPOTerm
HP:0000006Autosomal dominant inheritance
HP:0000407Sensorineural hearing impairment
HP:0000961Cyanosis
HP:0000969Edema
HP:0001279Syncope
HP:0001297Stroke
HP:0001633Abnormal mitral valve morphology
HP:0001635Congestive heart failure
HP:0001639Hypertrophic cardiomyopathy
HP:0001644Dilated cardiomyopathy
HP:0001653Mitral regurgitation
HP:0001670Asymmetric septal hypertrophy
HP:0001682Subvalvular aortic stenosis
HP:0001684Secundum atrial septal defect
HP:0001699Sudden death
HP:0001708Right ventricular failure
HP:0001712Left ventricular hypertrophy
HP:0001727Thromboembolic stroke
HP:0001962Palpitations
HP:0002090Pneumonia
HP:0002092Pulmonary arterial hypertension
HP:0002094Dyspnea
HP:0002326Transient ischemic attack
HP:0002718Recurrent bacterial infections
HP:0002875Exertional dyspnea
HP:0003198Myopathy
HP:0003457EMG abnormality
HP:0003546Exercise intolerance
HP:0003584Late onset
HP:0003596Middle age onset

GWAS associations

84 associations (top):

StudyTraitp-value
GCST000561_5Electrocardiographic traits9.000000e-11
GCST000731_6Resting heart rate4.000000e-14
GCST001748_2Resting heart rate8.000000e-07
GCST001969_7Heart rate5.000000e-45
GCST003818_65Resting heart rate2.000000e-100
GCST004213_5Resting heart rate4.000000e-10
GCST004278_67Pulse pressure3.000000e-08
GCST004824_10P wave terminal force4.000000e-22
GCST004824_3P wave terminal force3.000000e-18
GCST004826_10P wave duration6.000000e-10
GCST004826_19P wave duration4.000000e-13
GCST005687_1Aortic coarctation5.000000e-22
GCST005789_24Resting heart rate1.000000e-26
GCST006021_13Systolic blood pressure1.000000e-06
GCST006022_10Pulse pressure4.000000e-16
GCST006230_6Pulse pressure2.000000e-16
GCST006414_19Atrial fibrillation4.000000e-10
GCST007045_40PR interval7.000000e-10
GCST007217_3RR interval (heart rate)7.000000e-11
GCST007268_48Diastolic blood pressure9.000000e-15
GCST007269_325Pulse pressure2.000000e-19
GCST010321_149PR interval5.000000e-55
GCST010796_2201Electrocardiogram morphology (amplitude at temporal datapoints)2.000000e-37
GCST010796_2202Electrocardiogram morphology (amplitude at temporal datapoints)6.000000e-41
GCST010796_2203Electrocardiogram morphology (amplitude at temporal datapoints)2.000000e-43
GCST010796_2204Electrocardiogram morphology (amplitude at temporal datapoints)2.000000e-44
GCST010796_2205Electrocardiogram morphology (amplitude at temporal datapoints)1.000000e-44
GCST010796_2206Electrocardiogram morphology (amplitude at temporal datapoints)1.000000e-41
GCST010796_2207Electrocardiogram morphology (amplitude at temporal datapoints)7.000000e-40
GCST010796_2208Electrocardiogram morphology (amplitude at temporal datapoints)2.000000e-38

EFO canonical traits (8, from GWAS)

EFO IDTrait name
EFO:0005763pulse pressure measurement
EFO:0008379P wave terminal force measurement
EFO:0005094P wave duration
EFO:0006335systolic blood pressure
EFO:0004462PR interval
EFO:0004831RR interval
EFO:0006336diastolic blood pressure
EFO:0004327electrocardiography

MeSH disease descriptors (23)

DescriptorNameTree numbers
D019571Arrhythmogenic Right Ventricular DysplasiaC14.240.400.145; C14.280.238.028; C14.280.400.145; C16.131.240.400.145
D053840Brugada SyndromeC14.280.067.322; C14.280.123.250; C16.320.100
D009202CardiomyopathiesC14.280.238
D002311Cardiomyopathy, DilatedC14.280.195.160; C14.280.238.070; C16.320.488.750
D002312Cardiomyopathy, HypertrophicC14.280.238.100; C14.280.484.048.750.070.160
D024741Cardiomyopathy, Hypertrophic, FamilialC14.280.238.100.500; C14.280.484.048.750.070.160.500; C16.320.160
D002313Cardiomyopathy, RestrictiveC14.280.238.160
D006330Heart Defects, CongenitalC14.240.400; C14.280.400; C16.131.240.400
D006331Heart DiseasesC14.280
D006344Heart Septal Defects, AtrialC14.240.400.560.375; C14.280.400.560.375; C16.131.240.400.560.375
D006429HemiplegiaC10.597.622.295; C23.888.592.636.312
D018636Hypoplastic Left Heart SyndromeC14.240.400.625; C14.280.400.625; C16.131.240.400.625
D008133Long QT SyndromeC14.280.067.565; C14.280.123.625; C16.131.240.400.715; C23.550.073.547
D008881Migraine DisordersC10.228.140.546.399.750
D017180Tachycardia, VentricularC14.280.067.845.940; C14.280.123.875.940; C23.550.073.845.940
D014693Ventricular FibrillationC14.280.067.922; C23.550.073.922
D014927Wolff-Parkinson-White SyndromeC14.280.067.780.977; C14.280.123.750.977; C16.131.240.400.980
C563808Arrhythmogenic Right Ventricular Dysplasia, Familial, 9 (supp.)
C563540Atrial Septal Defect 3 (supp.)
C567683Cardiomyopathy, Dilated, 1EE (supp.)
C567684Cardiomyopathy, Familial Hypertrophic, 14 (supp.)
C566171Cardiomyopathy, Familial Hypertrophic, 2 (supp.)
C536231familial dilated cardiomyopathy (supp.)

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL3831286 (PROTEIN COMPLEX)

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

27 total (human), top 27 by PubMed support.

ChemicalActions (top 5)PubMed papers
bisphenol Adecreases expression, increases expression3
Doxorubicinaffects expression, decreases expression3
Benzo(a)pyreneaffects methylation, increases methylation, increases mutagenesis2
Daunorubicindecreases expression2
Folic Aciddecreases expression, increases expression2
Mitoxantronedecreases expression2
Triclosandecreases expression, increases expression2
Valproic Acidaffects expression, increases methylation2
butyraldehydedecreases expression1
protosappanin Aaffects reaction, affects cotreatment, affects expression1
1-hydroxy-2-oxo-3,3-bis(2-aminoethyl)-1-triazeneaffects cotreatment, increases expression1
2,7-dihydroxynaphthaleneincreases expression1
monomethylarsonous acidincreases expression1
abrineincreases expression1
Sunitinibincreases expression1
Arsenic Trioxideincreases expression1
Dexamethasoneaffects expression1
Estradioldecreases expression1
Phenylbutyratesaffects cotreatment, increases expression1
Polychlorinated Biphenylsdecreases expression1
Ribavirindecreases expression1
Rifampinincreases expression1
Tretinoinincreases expression, affects cotreatment1
Warfarinaffects response to substance1
Zincdecreases expression1
Aflatoxin B1decreases methylation1
Genisteindecreases expression1

Cellosaurus cell lines

2 cell lines: 1 embryonic stem cell, 1 induced pluripotent stem cell

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_A4UCWAe009-A-46Embryonic stem cellFemale
CVCL_A9YLZZUNEUi013-AInduced pluripotent stem cellMale

Clinical trials (associated diseases)

326 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT01536717PHASE4SUSPENDEDComparison of the Local Anaesthetics Articaine and Bupivacaine in Treatment of Acute Sternum Pain After Heart Surgery
NCT05688670PHASE4COMPLETEDRegional Anesthesia Following Pediatric Cardiac Surgery
NCT06631534PHASE4RECRUITINGEffect of Dexmedetomidine Supplementation to General Anaesthesia in Paediatric Transcatheter Closure of Atrial Septal Defect
NCT07054541PHASE4NOT_YET_RECRUITINGA Novel Echocardiography-Guided Strategy for Percutateous Closure of Atrial Septal Defect Assisted by PannaWire
NCT07226739PHASE4NOT_YET_RECRUITINGComprehensive Toileting Program
NCT00879060PHASE4COMPLETEDClinical and Therapeutic Implications of Fibrosis in Hypertrophic Cardiomyopathy
NCT01721967PHASE4COMPLETEDRanolazine for the Treatment of Chest Pain in HCM Patients
NCT02948998PHASE4UNKNOWNEvaluating the Effect of Spironolactone on Hypertrophic Cardiomyopathy
NCT03249272PHASE4TERMINATEDMicrovascular Dysfunction in Nonischemic Cardiomyopathy: Insights From CMR Assessment of Coronary Flow Reserve
NCT04133532PHASE4COMPLETEDEffect of Metoprolol in Post Alcohol Septal Ablation Patients With Hypertrophic Cardiomyopathy
NCT06401343PHASE4RECRUITINGUse of SGLT2i in noHCM With HFpEF
NCT07103655PHASE4NOT_YET_RECRUITINGThe Therapeutic Value of Mavacamten in Hypertrophic Cardiomyopathy With Mid-to-Apical Left Ventricular Obstruction
NCT07600177PHASE4RECRUITINGMavacamten to Aficamten Transition in Patients With Obstructive Hypertrophic Cardiomyopathy
NCT00480740PHASE3COMPLETEDThe Pharmacology and Hemodynamics of Dexmedetomidine in Children With Congenital Heart Disease
NCT01773252PHASE3TERMINATEDRight to Left Cardiac Shunt Detection
NCT02985749PHASE3COMPLETEDA Study of Oxytocin for the Treatment of Social Impairment in Individuals With High Functioning Autism Spectrum Disorder
NCT00317967PHASE3COMPLETEDStudy to Determine if Atorvastatin Reduces Size and Stiffness of Muscle in the Left Ventricle of the Heart
NCT00698074PHASE3UNKNOWNDiastolic Ventricular Interaction and the Effects of Biventricular Pacing in Hypertrophic Cardiomyopathy
NCT00821353PHASE3COMPLETEDAntiarrhythmic Therapy Versus Catheter Ablation for Atrial Fibrillation in Hypertrophic Cardiomyopathy
NCT02431221PHASE3WITHDRAWNEfficacy, Safety, and Tolerability of Perhexiline in Subjects With Hypertrophic Cardiomyopathy and Heart Failure
NCT03470545PHASE3COMPLETEDClinical Study to Evaluate Mavacamten (MYK-461) in Adults With Symptomatic Obstructive Hypertrophic Cardiomyopathy
NCT05174416PHASE3COMPLETEDA Study to Evaluate the Efficacy and Safety of Mavacamten in Chinese Adults With Symptomatic Obstructive HCM
NCT05182658PHASE3ACTIVE_NOT_RECRUITINGEmpagliflozin in Hypertrophic Cardiomyopathy
NCT05186818PHASE3COMPLETEDPhase 3 Trial to Evaluate the Efficacy and Safety of Aficamten Compared to Placebo in Adults With Symptomatic oHCM
NCT05767346PHASE3COMPLETEDPhase 3 Trial to Evaluate the Efficacy and Safety of Aficamten Compared to Metoprolol Succinate in Adults With Symptomatic oHCM
NCT06116968PHASE3COMPLETEDAn Open-Label Study of Aficamten for Chinese Patients With Symptomatic oHCM
NCT06873828PHASE3NOT_YET_RECRUITINGEvaluation of the Efficacy and Safety of Wearable ECG (AT-Patch) in Patients With Hypertrophic Cardiomyopathy Requiring 48-Hour Holter MonitoringEvaluation of the Efficacy and Safety of Wearable ECG (AT-Patch) in Patients With Hypertrophic Cardiomyopathy Requiring 48-Hour Holter Monitoring
NCT07021976PHASE3RECRUITINGA Phase III Trial of HRS-1893 in Patients With Obstructive Hypertrophic Cardiomyopathy
NCT07023341PHASE3ACTIVE_NOT_RECRUITINGA Study to Learn More About How Well Aficamten Works in Japanese Participants With Symptomatic Obstructive Hypertrophic Cardiomyopathy
NCT07202897PHASE3NOT_YET_RECRUITINGLA-HCM Study : Rivaroxaban for Antithrombotic Prevention in Hypertrophic Cardiomyopathy Patients With Abnormal Left Atrial Strain.
NCT01183221PHASE2COMPLETEDThe Effects of Oxytocin on Complex Social Cognition in Autism Spectrum Disorders
NCT02847182PHASE2COMPLETEDCord Blood Infusion for Children With Autism Spectrum Disorder
NCT03243552PHASE2UNKNOWNProof of Mechanism Study for the Treatment of Social Anhedonia in ASD
NCT03829878PHASE2WITHDRAWNEfficacy, Safety, and Tolerability Study of Oral Full-Spectrum MicrobiotaTM (CP101) in Subjects With Autism Spectrum Disorder and Associated GI Symptoms (SPROUT)
NCT03900923PHASE2COMPLETEDCannabidiol for ASD Open Trial
NCT05733390PHASE2WITHDRAWNA Study of JZP541 in Adults With Irritability Associated With Autism Spectrum Disorder
NCT07303907PHASE2RECRUITINGA Phase 2A Trial of DT402 for Autism Spectrum Disorder
NCT00001631PHASE2COMPLETEDStudy of Blood Flow in Heart Muscle
NCT00001894PHASE2COMPLETEDA Comparison of Two Treatments: Pacemaker and Percutaneous Transluminal Septal Ablation for Hypertrophic Cardiomyopathy
NCT00001960PHASE2COMPLETEDStudying the Effectiveness of Pacemaker Therapy in Children Who Have Thickened Heart Muscle