MCID: HYP606
MIFTS: 30

Hypokalemic Periodic Paralysis, Type 2

Categories: Genetic diseases, Metabolic diseases, Rare diseases, Neuronal diseases

Aliases & Classifications for Hypokalemic Periodic Paralysis, Type 2

MalaCards integrated aliases for Hypokalemic Periodic Paralysis, Type 2:

Name: Hypokalemic Periodic Paralysis, Type 2 53 28 13 69
Hokpp2 53 71
Periodic Paralysis Hypokalemic 2 71

Characteristics:

OMIM:

53
Inheritance:
autosomal dominant

Miscellaneous:
onset usually in second decade (may occur earlier)
one-third of cases are sporadic
variable phenotype
reduced penetrance in females
allelic disorder to hyperkalemic periodic paralysis (hypp, )


HPO:

31
hypokalemic periodic paralysis, type 2:
Inheritance autosomal dominant inheritance
Onset and clinical course phenotypic variability


Classifications:



External Ids:

OMIM 53 613345
MedGen 39 C2750061
MeSH 41 D020514
UMLS 69 C2750061

Summaries for Hypokalemic Periodic Paralysis, Type 2

UniProtKB/Swiss-Prot : 71 Periodic paralysis hypokalemic 2: An autosomal dominant disorder manifested by episodic flaccid generalized muscle weakness associated with falls of serum potassium levels.

MalaCards based summary : Hypokalemic Periodic Paralysis, Type 2, also known as hokpp2, is related to hypokalemic periodic paralysis, type 1 and normokalemic periodic paralysis, and has symptoms including hypokalemia, myopathy and episodic flaccid weakness. An important gene associated with Hypokalemic Periodic Paralysis, Type 2 is SCN4A (Sodium Voltage-Gated Channel Alpha Subunit 4), and among its related pathways/superpathways are Neuropathic Pain-Signaling in Dorsal Horn Neurons and Neuroscience.

Description from OMIM: 613345

Related Diseases for Hypokalemic Periodic Paralysis, Type 2

Diseases in the Hypokalemic Periodic Paralysis, Type 1 family:

Hypokalemic Periodic Paralysis, Type 2

Diseases related to Hypokalemic Periodic Paralysis, Type 2 via text searches within MalaCards or GeneCards Suite gene sharing:

# Related Disease Score Top Affiliating Genes
1 hypokalemic periodic paralysis, type 1 29.2 QDPR SCN4A
2 normokalemic periodic paralysis 9.8 SCN4A SCN7A
3 myotonia 9.7 SCN4A SCN7A
4 familial periodic paralysis 9.6 QDPR SCN4A
5 malignant hyperthermia 9.3 QDPR SCN4A

Graphical network of the top 20 diseases related to Hypokalemic Periodic Paralysis, Type 2:



Diseases related to Hypokalemic Periodic Paralysis, Type 2

Symptoms & Phenotypes for Hypokalemic Periodic Paralysis, Type 2

Symptoms via clinical synopsis from OMIM:

53
Muscle Soft Tissue:
flaccid weakness or paralysis, episodic attacks
attacks last 4 to 24 hours
attacks precipitated by hypokalemia, administration of glucose or insulin, heavy carbohydrate consumption, stress, fatigue, rest after exercise
attacks may present during or after sleep
attacks relieved by potassium administration
more
Laboratory Abnormalities:
hypokalemia occurs during paralytic attacks


Clinical features from OMIM:

613345

Human phenotypes related to Hypokalemic Periodic Paralysis, Type 2:

31
# Description HPO Frequency HPO Source Accession
1 hypokalemia 31 HP:0002900
2 myopathy 31 HP:0003198
3 episodic flaccid weakness 31 HP:0003752
4 periodic paralysis 31 HP:0003768

Drugs & Therapeutics for Hypokalemic Periodic Paralysis, Type 2

Search Clinical Trials , NIH Clinical Center for Hypokalemic Periodic Paralysis, Type 2

Genetic Tests for Hypokalemic Periodic Paralysis, Type 2

Genetic tests related to Hypokalemic Periodic Paralysis, Type 2:

# Genetic test Affiliating Genes
1 Hypokalemic Periodic Paralysis, Type 2 28 SCN4A

Anatomical Context for Hypokalemic Periodic Paralysis, Type 2

Publications for Hypokalemic Periodic Paralysis, Type 2

Articles related to Hypokalemic Periodic Paralysis, Type 2:

# Title Authors Year
1
Voltage-sensor sodium channel mutations cause hypokalemic periodic paralysis type 2 by enhanced inactivation and reduced current. ( 10944223 )
2000

Variations for Hypokalemic Periodic Paralysis, Type 2

UniProtKB/Swiss-Prot genetic disease variations for Hypokalemic Periodic Paralysis, Type 2:

71 (show all 11)
# Symbol AA change Variation ID SNP ID
1 SCN4A p.Arg669His VAR_017788 rs80338784
2 SCN4A p.Arg672Gly VAR_017789 rs80338785
3 SCN4A p.Arg672His VAR_017790 rs80338788
4 SCN4A p.Arg672Ser VAR_017791 rs80338785
5 SCN4A p.Pro1158Ser VAR_017792 rs121908555
6 SCN4A p.Arg222Trp VAR_054935 rs527236148
7 SCN4A p.Arg672Cys VAR_054939 rs80338785
8 SCN4A p.Arg1132Gln VAR_054943 rs80338789
9 SCN4A p.Arg1135His VAR_054944 rs527236150
10 SCN4A p.Arg1129Gln VAR_064987 rs527236149
11 SCN4A p.Arg1135Cys VAR_075434

ClinVar genetic disease variations for Hypokalemic Periodic Paralysis, Type 2:

6
# Gene Variation Type Significance SNP ID Assembly Location
1 SCN4A NM_000334.4(SCN4A): c.3395G> A (p.Arg1132Gln) single nucleotide variant Pathogenic rs80338789 GRCh37 Chromosome 17, 62024451: 62024451
2 SCN4A NM_000334.4(SCN4A): c.664C> T (p.Arg222Trp) single nucleotide variant Pathogenic rs527236148 GRCh37 Chromosome 17, 62048561: 62048561
3 SCN4A NM_000334.4(SCN4A): c.3404G> A (p.Arg1135His) single nucleotide variant Pathogenic rs527236150 GRCh37 Chromosome 17, 62024442: 62024442
4 SCN4A NM_000334.4(SCN4A): c.2006G> A (p.Arg669His) single nucleotide variant Pathogenic rs80338784 GRCh37 Chromosome 17, 62036638: 62036638
5 SCN4A NM_000334.4(SCN4A): c.2015G> A (p.Arg672His) single nucleotide variant Pathogenic rs80338788 GRCh37 Chromosome 17, 62036629: 62036629
6 SCN4A NM_000334.4(SCN4A): c.2014C> G (p.Arg672Gly) single nucleotide variant Pathogenic rs80338785 GRCh37 Chromosome 17, 62036630: 62036630
7 SCN4A NM_000334.4(SCN4A): c.2014C> A (p.Arg672Ser) single nucleotide variant Pathogenic rs80338785 GRCh37 Chromosome 17, 62036630: 62036630
8 SCN4A NM_000334.4(SCN4A): c.3472C> T (p.Pro1158Ser) single nucleotide variant Pathogenic rs121908555 GRCh37 Chromosome 17, 62022968: 62022968

Expression for Hypokalemic Periodic Paralysis, Type 2

Search GEO for disease gene expression data for Hypokalemic Periodic Paralysis, Type 2.

Pathways for Hypokalemic Periodic Paralysis, Type 2

Pathways related to Hypokalemic Periodic Paralysis, Type 2 according to GeneCards Suite gene sharing:

# Super pathways Score Top Affiliating Genes
1
Show member pathways
11.91 SCN4A SCN7A
2 11.79 SCN4A SCN7A
3
Show member pathways
11.25 SCN4A SCN7A
4
Show member pathways
10.83 SCN4A SCN7A
5 10.1 SCN4A SCN7A

GO Terms for Hypokalemic Periodic Paralysis, Type 2

Cellular components related to Hypokalemic Periodic Paralysis, Type 2 according to GeneCards Suite gene sharing:

# Name GO ID Score Top Affiliating Genes
1 voltage-gated sodium channel complex GO:0001518 8.62 SCN4A SCN7A

Biological processes related to Hypokalemic Periodic Paralysis, Type 2 according to GeneCards Suite gene sharing:

# Name GO ID Score Top Affiliating Genes
1 ion transmembrane transport GO:0034220 9.43 SCN4A SCN7A
2 regulation of ion transmembrane transport GO:0034765 9.4 SCN4A SCN7A
3 sodium ion transport GO:0006814 9.37 SCN4A SCN7A
4 muscle contraction GO:0006936 9.32 SCN4A SCN7A
5 sodium ion transmembrane transport GO:0035725 9.26 SCN4A SCN7A
6 regulation of postsynaptic membrane potential GO:0060078 9.16 SCN4A SCN7A
7 neuronal action potential GO:0019228 8.96 SCN4A SCN7A
8 membrane depolarization during action potential GO:0086010 8.62 SCN4A SCN7A

Molecular functions related to Hypokalemic Periodic Paralysis, Type 2 according to GeneCards Suite gene sharing:

# Name GO ID Score Top Affiliating Genes
1 voltage-gated ion channel activity GO:0005244 9.26 SCN4A SCN7A
2 ion channel activity GO:0005216 9.16 SCN4A SCN7A
3 sodium channel activity GO:0005272 8.96 SCN4A SCN7A
4 voltage-gated sodium channel activity GO:0005248 8.62 SCN4A SCN7A

Sources for Hypokalemic Periodic Paralysis, Type 2

3 CDC
7 CNVD
9 Cosmic
10 dbSNP
11 DGIdb
16 ExPASy
18 FMA
27 GO
28 GTR
29 HGMD
30 HMDB
31 HPO
32 ICD10
33 ICD10 via Orphanet
34 ICD9CM
35 IUPHAR
36 KEGG
37 LifeMap
39 MedGen
41 MeSH
42 MESH via Orphanet
43 MGI
45 NCI
46 NCIt
47 NDF-RT
50 NINDS
51 Novoseek
53 OMIM
54 OMIM via Orphanet
58 PubMed
60 QIAGEN
65 SNOMED-CT via HPO
66 SNOMED-CT via Orphanet
67 TGDB
68 Tocris
69 UMLS
70 UMLS via Orphanet
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