Human Phenotype Ontology 
Grandparent Node:
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Abnormality of the musculature (HP:0003011)help
Parent Node:
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Abnormal muscle physiology (HP:0011804)help
..Starting node
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Myotonia (HP:0002486)help
Term ID: 2486
Name: Myotonia
Synonym: Delayed relaxation of muscle fibers after contraction; Delayed relaxation of muscle fibres after contraction
Definition: An involuntary and painless delay in the relaxation of skeletal muscle following contraction or electrical stimulation.
Comments:
Reference: HP:0002486
Genes and Diseases:
 
       Child Nodes:
........expandEMG: myotonic runs (HP:0003730) help
........expandMyotonia with warm-up phenomenon (HP:0003740) help
........expandPercussion myotonia (HP:0010548) help
................... HP:0003719 Muscle mounding
................... HP:0003760 Percussion-induced rapid rolling muscle contractions
........expandParadoxical myotonia (HP:0011809) help
........expandHandgrip myotonia (HP:0012899) help
........expandMyotonia of the face (HP:0012900) help
........expandMyotonia of the jaw (HP:0012901) help
........expandMyotonia of the lower limb (HP:0012902) help
........expandMyotonia of the upper limb (HP:0012903) help
........expandCold-sensitive myotonia (HP:0012904) help

 Sister Nodes: 
..expandAbnormal muscle tone (HP:0003808) help
..expandEMG abnormality (HP:0003457) help
..expandFunctional motor deficit (HP:0004302) help
..expandIncreased muscle fatiguability (HP:0003750) help
..expandMuscle hyperirritability (HP:0003559) help
..expandMuscle spasm (HP:0003394) help
..expandMuscle stiffness (HP:0003552) help
..expandMuscle weakness (HP:0001324) help
..expandTetany (HP:0001281) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0002486HP:0002486Myotonia0ACTA1 CL E G H58129ORPHA:97240Zebra body myopathy96
HP:0002486HP:0002486Myotonia0ANO5 CL E G H20385927337ORPHA:206549Anoctamin-5-related limb-girdle muscular dystrophy R12304
HP:0002486HP:0002486Myotonia0CACNA1A CL E G H7731388OMIM:108500Episodic ataxia, type 2.449
HP:0002486HP:0002486Myotonia0CAV3 CL E G H8591529ORPHA:488650Distal myopathy, Tateyama type148
HP:0002486HP:0002486Myotonia0CAV3 CL E G H8591529OMIM:606072Rippling muscle disease148
HP:0002486HP:0002486Myotonia0CAVIN1 CL E G H2841199688OMIM:613327Lipodystrophy, congenital generalized, type 448
HP:0002486HP:0002486Myotonia0CLCN1 CL E G H11802019OMIM:160800Myotonia congenita, autosomal dominant133
HP:0002486HP:0002486Myotonia0CLCN1 CL E G H11802019OMIM:255700Myotonia congenita, autosomal recessive.133
HP:0002486HP:0002486Myotonia0CLCN1 CL E G H11802019ORPHA:614Thomsen and Becker diseaseHP:0040281 - Very frequent133
HP:0002486HP:0002486Myotonia0CNBP CL E G H755513164OMIM:602668Dystrophia myotonica 2.1
HP:0002486HP:0002486Myotonia0CNBP CL E G H755513164ORPHA:606Proximal myotonic myopathyHP:0040281 - Very frequent1
HP:0002486HP:0002486Myotonia0DMPK CL E G H17602933ORPHA:589821Congenital-onset Steinert myotonic dystrophy152
HP:0002486HP:0002486Myotonia0DMPK CL E G H17602933OMIM:160900Myotonic dystrophy 1.152
HP:0002486HP:0002486Myotonia0DNAJB6 CL E G H1004914888ORPHA:34516DNAJB6-related limb-girdle muscular dystrophy D1103
HP:0002486HP:0002486Myotonia0EMD CL E G H20103331ORPHA:98863X-linked Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent107
HP:0002486HP:0002486Myotonia0FHL1 CL E G H22733702ORPHA:98863X-linked Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent68
HP:0002486HP:0002486Myotonia0HINT1 CL E G H30944912ORPHA:324442Autosomal recessive axonal neuropathy with neuromyotoniaHP:0040281 - Very frequent12
HP:0002486HP:0002486Myotonia0HSPG2 CL E G H33395273ORPHA:800Schwartz-Jampel syndromeHP:0040281 - Very frequent345
HP:0002486HP:0002486Myotonia0HSPG2 CL E G H33395273OMIM:255800Schwartz-jampel syndrome, type 1.345
HP:0002486HP:0002486Myotonia0KCNA1 CL E G H37366218ORPHA:37612Episodic ataxia type 1HP:0040283 - Occasional145
HP:0002486HP:0002486Myotonia0LIFR CL E G H39776597OMIM:601559Stuve-Wiedemann syndrome.144
HP:0002486HP:0002486Myotonia0LMNA CL E G H40006636ORPHA:98853Autosomal dominant Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent645
HP:0002486HP:0002486Myotonia0LMNA CL E G H40006636ORPHA:98855Autosomal recessive Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent645
HP:0002486HP:0002486Myotonia0PFKM CL E G H52138877ORPHA:371Glycogen storage disease due to muscle phosphofructokinase deficiencyHP:0040281 - Very frequent64
HP:0002486HP:0002486Myotonia0PURA CL E G H58139701ORPHA:438216PURA-related severe neonatal hypotonia-seizures-encephalopathy syndrome due to a point mutation53
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591ORPHA:99736Acetazolamide-responsive myotoniaHP:0040281 - Very frequent263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591ORPHA:682Hyperkalemic periodic paralysisHP:0040282 - Frequent263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591OMIM:170500Hyperkalemic periodic paralysisHP:0040282 - Frequent263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuans263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591ORPHA:99735Myotonia permanensHP:0040281 - Very frequent263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591OMIM:608390Myotonia, potassium-aggravated.263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591OMIM:168300Paramyotonia congenita of von eulenburg263
HP:0002486HP:0002486Myotonia0SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0002486Myotonia0SGCG CL E G H644510809ORPHA:353Gamma-sarcoglycan-related limb-girdle muscular dystrophy R583
HP:0002486HP:0002486Myotonia0SVIL CL E G H684011480OMIM:619040MYOFIBRILLAR MYOPATHY 10; MFM101
HP:0002486HP:0002486Myotonia0SYNE1 CL E G H2334517089ORPHA:98853Autosomal dominant Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent1129
HP:0002486HP:0002486Myotonia0SYNE2 CL E G H2322417084ORPHA:98853Autosomal dominant Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent508
HP:0002486HP:0002486Myotonia0TMEM43 CL E G H7918828472ORPHA:98853Autosomal dominant Emery-Dreifuss muscular dystrophyHP:0040281 - Very frequent171
HP:0002486HP:0002486Myotonia0TTI2 CL E G H8018526262ORPHA:391307Severe intellectual disability-short stature-behavioral abnormalities-facial dysmorphism syndromeHP:0040283 - Occasional11
HP:0002486HP:0002486Myotonia0UCHL1 CL E G H734512513OMIM:615491Spastic paraplegia 79, autosomal recessiveHP:0040283 - Occasional21
HP:0002486HP:0002486Myotonia0VMA21 CL E G H20354722082OMIM:310440Myopathy, X-linked, with excessive autophagy.10
HP:0002486HP:0012899Handgrip myotonia1ACTA1 CL E G H58129ORPHA:97240Zebra body myopathyHP:0040281 - Very frequent96
HP:0002486HP:0003730EMG: myotonic runs1ANO5 CL E G H20385927337ORPHA:206549Anoctamin-5-related limb-girdle muscular dystrophy R12HP:0040282 - Frequent304
HP:0002486HP:0010548Percussion myotonia1CAV3 CL E G H8591529ORPHA:488650Distal myopathy, Tateyama type148
HP:0002486HP:0010548Percussion myotonia1CAV3 CL E G H8591529OMIM:606072Rippling muscle disease148
HP:0002486HP:0010548Percussion myotonia1CAVIN1 CL E G H2841199688OMIM:613327Lipodystrophy, congenital generalized, type 448
HP:0002486HP:0010548Percussion myotonia1CLCN1 CL E G H11802019OMIM:160800Myotonia congenita, autosomal dominant133
HP:0002486HP:0003730EMG: myotonic runs1CLCN1 CL E G H11802019OMIM:160800Myotonia congenita, autosomal dominant.133
HP:0002486HP:0012899Handgrip myotonia1CLCN1 CL E G H11802019OMIM:160800Myotonia congenita, autosomal dominant.133
HP:0002486HP:0003740Myotonia with warm-up phenomenon1CLCN1 CL E G H11802019OMIM:160800Myotonia congenita, autosomal dominant133
HP:0002486HP:0010548Percussion myotonia1CLCN1 CL E G H11802019OMIM:255700Myotonia congenita, autosomal recessive133
HP:0002486HP:0003740Myotonia with warm-up phenomenon1CLCN1 CL E G H11802019OMIM:255700Myotonia congenita, autosomal recessive133
HP:0002486HP:0003730EMG: myotonic runs1CLCN1 CL E G H11802019OMIM:255700Myotonia congenita, autosomal recessive.133
HP:0002486HP:0012899Handgrip myotonia1CNBP CL E G H755513164OMIM:602668Dystrophia myotonica 21
HP:0002486HP:0010548Percussion myotonia1DNAJB6 CL E G H1004914888ORPHA:34516DNAJB6-related limb-girdle muscular dystrophy D1HP:0040284 - Very rare103
HP:0002486HP:0012899Handgrip myotonia1HINT1 CL E G H30944912ORPHA:324442Autosomal recessive axonal neuropathy with neuromyotoniaHP:0040282 - Frequent12
HP:0002486HP:0010548Percussion myotonia1HINT1 CL E G H30944912ORPHA:324442Autosomal recessive axonal neuropathy with neuromyotonia12
HP:0002486HP:0010548Percussion myotonia1HSPG2 CL E G H33395273OMIM:255800Schwartz-jampel syndrome, type 1345
HP:0002486HP:0012899Handgrip myotonia1PURA CL E G H58139701ORPHA:438216PURA-related severe neonatal hypotonia-seizures-encephalopathy syndrome due to a point mutationHP:0040283 - Occasional53
HP:0002486HP:0012900Myotonia of the face1SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuansHP:0040283 - Occasional263
HP:0002486HP:0012903Myotonia of the upper limb1SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuansHP:0040282 - Frequent263
HP:0002486HP:0012899Handgrip myotonia1SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuansHP:0040283 - Occasional263
HP:0002486HP:0003740Myotonia with warm-up phenomenon1SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuansHP:0040284 - Very rare263
HP:0002486HP:0012902Myotonia of the lower limb1SCN4A CL E G H632910591ORPHA:99734Myotonia fluctuansHP:0040282 - Frequent263
HP:0002486HP:0010548Percussion myotonia1SCN4A CL E G H632910591OMIM:608390Myotonia, potassium-aggravated263
HP:0002486HP:0012899Handgrip myotonia1SCN4A CL E G H632910591OMIM:608390Myotonia, potassium-aggravated263
HP:0002486HP:0012900Myotonia of the face1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0012904Cold-sensitive myotonia1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0010548Percussion myotonia1SCN4A CL E G H632910591OMIM:168300Paramyotonia congenita of von eulenburg.263
HP:0002486HP:0012903Myotonia of the upper limb1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0010548Percussion myotonia1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0011809Paradoxical myotonia1SCN4A CL E G H632910591OMIM:168300Paramyotonia congenita of von eulenburg.263
HP:0002486HP:0012899Handgrip myotonia1SCN4A CL E G H632910591OMIM:168300Paramyotonia congenita of von eulenburg.263
HP:0002486HP:0012901Myotonia of the jaw1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0011809Paradoxical myotonia1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0012899Handgrip myotonia1SCN4A CL E G H632910591ORPHA:684Paramyotonia congenita of Von EulenburgHP:0040282 - Frequent263
HP:0002486HP:0003730EMG: myotonic runs1SGCG CL E G H644510809ORPHA:353Gamma-sarcoglycan-related limb-girdle muscular dystrophy R5HP:0040282 - Frequent83
HP:0002486HP:0010548Percussion myotonia1SVIL CL E G H684011480OMIM:619040MYOFIBRILLAR MYOPATHY 10; MFM101
HP:0002486HP:0003760Percussion-induced rapid rolling muscle contractions2CAV3 CL E G H8591529ORPHA:488650Distal myopathy, Tateyama typeHP:0040283 - Occasional148
HP:0002486HP:0003719Muscle mounding2CAV3 CL E G H8591529OMIM:606072Rippling muscle disease.148
HP:0002486HP:0003760Percussion-induced rapid rolling muscle contractions2CAV3 CL E G H8591529OMIM:606072Rippling muscle disease.148
HP:0002486HP:0003719Muscle mounding2CAVIN1 CL E G H2841199688OMIM:613327Lipodystrophy, congenital generalized, type 4.48
HP:0002486HP:0003760Percussion-induced rapid rolling muscle contractions2HINT1 CL E G H30944912ORPHA:324442Autosomal recessive axonal neuropathy with neuromyotoniaHP:0040283 - Occasional12


Genes (27) :ACTA1 ANO5 CACNA1A CAV3 CAVIN1 CLCN1 CNBP DMPK DNAJB6 EMD FHL1 HINT1 HSPG2 KCNA1 LIFR LMNA PFKM PURA SCN4A SGCG SVIL SYNE1 SYNE2 TMEM43 TTI2 UCHL1 VMA21

Diseases (37) :ORPHA:97240 ORPHA:206549 OMIM:108500 ORPHA:488650 OMIM:606072 OMIM:613327 OMIM:160800 OMIM:255700 ORPHA:614 OMIM:602668 ORPHA:606 ORPHA:589821 OMIM:160900 ORPHA:34516 ORPHA:98863 ORPHA:324442 ORPHA:800 OMIM:255800 ORPHA:37612 OMIM:601559 ORPHA:98853 ORPHA:98855 ORPHA:371 ORPHA:438216 ORPHA:99736 ORPHA:682 OMIM:170500 ORPHA:99734 ORPHA:99735 OMIM:608390 OMIM:168300 ORPHA:684 ORPHA:353 OMIM:619040 ORPHA:391307 OMIM:615491 OMIM:310440
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.