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. 2019 Sep 30;90(Suppl 10):32–43. doi: 10.23750/abm.v90i10-S.8755

Table 1.

Genes associated with various forms of hypertrophic cardiomyopathy

Gene OMIM gene Disease OMIM disease Inheritance Function
MYH7 160760 CMH1 192600 AD Beta heavy chain subunit of cardiac myosin
CAV3 601253 CMH1 192600 AD Regulates voltage-gated K+ channels and plays a role in sarcolemma repair in cardiomyocytes after mechanical stress
MYLK2 606566 CMH1 192600 AD Cardiac Ca2+/calmodulin-dependent myosin light chain
TNNT2 191045 CMH2 115195 AD Ca2+-dependent regulator of muscle contraction
TPM1 191010 CMH3 115196 AD Ca2+-dependent regulator of striated muscle contraction
MYBPC3 600958 CMH4 115197 AD Cardiac isoform of myosin-binding protein C found in cross-bridge-bearing zone (C region) of A bands
PRKAG2 602743 CMH6 600858 AD Energy-sensing enzyme that monitors cell energy status and functions. Inhibitor of de novo biosynthesis of fatty acids and cholesterol
TNNI3 191044 CMH7 613690 AD Cardiac mediator of striated muscle relaxation
MYL3 160790 CMH8 608751 AD Ventricular isoform of myosin light chain 3
TTN 188840 CMH9 613765 AD Important for assembly and functioning of striated muscles, it connects microfilaments and contributes to balance of forces between two halves of sarcomere
MYL2 160781 CMH10 608758 AD Regulatory light chain associated with cardiac myosin beta heavy chain, promoting cardiac myofibril assembly
ACTC1 102540 CMH11 612098 AD ACTC1 is localized in contractile apparatus of muscle tissues
CSRP3 600824 CMH12 612124 AD Positive regulator of myogenesis; transcription cofactor for myogenic bHLH transcription factors
TNNC1 191040 CMH13 613243 AD TNNC1 encodes Tn-C that abolishes inhibitory action of Tn on actin filaments upon Ca2+ binding
MYH6 160710 CMH14 613251 AD Alpha heavy chain subunit of cardiac myosin
VCL 193065 CMH15 613255 AD VCL encodes an actin filament-binding protein that regulates cell-matrix adhesion, cell-cell adhesion, cell-surface E-cadherin expression, mechanosensing by E-cadherin complex, cell morphology and cell locomotion
MYOZ2 605602 CMH16 613838 AD MYOZ2 encodes myozenin that binds proteins involved in linking Z line proteins and localizing calcineurin signaling to sarcomeres. May play a role in myofibrillogenesis
JPH2 605267 CMH17 613873 AD JPH2 is necessary for intracellular Ca2+ signaling in cardiac myocytes via ryanodine receptor-mediated Ca2+ release
PLN 172405 CMH18 613874 AD Modulates contractility of heart muscle in response to physiological stimuli via ATP2A2 regulates Ca2+ reuptake during muscle relaxation and Ca2+ homeostasis in heart muscle
CALR3 611414 CMH19 (?) 613875 AD Ca2+-binding chaperone localized in endoplasmic reticulum
NEXN 613121 CMH20 613876 AD Essential for maintenance of sarcomere integrity
MYPN 608517 CMH22 615248 AD Component of cardiac muscle sarcomere that links nebulette to alpha-actinin in Z lines
ACTN2 102573 CMH23 with or without LVNC 612158 AD Localized in Z-disc of cardiac muscle where it anchors myofibrillar actin filaments
LDB3 605906 CMH24 601493 AD Adaptor protein in striated muscle; couples protein kinase C-mediated signaling to cytoskeleton
TCAP 604488 CMH25 607487 AD Muscle assembly regulating factor that mediates antiparallel assembly of titin molecules at sarcomere Z-disk
FLNC 102565 CMH26 617047 AD Critical for myogenesis and structural integrity of muscle fibers

CMH=hypertrophic cardiomyopathy; LVNC=left ventricular non-compaction; AD=autosomal dominant; AR=autosomal recessive