Back to Search
Start Over
Mutation analysis of CACNA1S and SCN4A in patients with hypokalemic periodic paralysis
- Source :
- Molecular Medicine Reports. 12:6267-6274
- Publication Year :
- 2015
- Publisher :
- Spandidos Publications, 2015.
-
Abstract
- Mutations in CACNA1S (calcium channel, voltage‑dependent, L type, alpha 1S subunit) and SCN4A (sodium channel, voltage‑gated, type IV, alpha subunit) are associated with hypokalemic periodic paralysis (HPP). The aim of the current study was to investigate CACNA1S and SCN4A mutations in patients with HPP. Mutations in CACNA1S and SCN4A were detected in three familial hypokalemic periodic paralysis (FHPP) pedigrees and in two thyrotoxic hypokalemic periodic paralysis (THPP) pedigrees using polymerase chain reaction, DNA sequencing and sequence alignment with GenBank data. A single base mutation from cytosine to guanine at site 1582 was identified in exon 11 of CACNA1S in one FHPP pedigree, resulting in an arginine to glycine (R528G) substitution. A single base mutation from thymine to cytosine at site 2012 was identified in exon 12 of SCN4A in one THPP pedigree, resulting in a phenylalanine to serine (F671S) substitution. No mutations in CACNA1S or SCN4A were identified in the remaining three pedigrees. The present study indicated that CACNA1S and SCN4A mutations are relatively rare in patients with HPP, and further studies are required to determine whether these mutation‑associated substitutions are representative of patients with HPP.
- Subjects :
- Adult
Male
Cancer Research
Adolescent
Calcium Channels, L-Type
Guanine
DNA Mutational Analysis
Hypokalemic Periodic Paralysis
Molecular Sequence Data
Biology
medicine.disease_cause
Biochemistry
Young Adult
chemistry.chemical_compound
Exon
Asian People
Hypokalemic periodic paralysis
Genetics
medicine
Humans
NAV1.4 Voltage-Gated Sodium Channel
Molecular Biology
G alpha subunit
Mutation
Base Sequence
Exons
Middle Aged
medicine.disease
Molecular biology
Pedigree
Thymine
Amino Acid Substitution
Oncology
chemistry
Mutation testing
Molecular Medicine
Female
Calcium Channels
Sequence Alignment
Cytosine
Subjects
Details
- ISSN :
- 17913004 and 17912997
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Molecular Medicine Reports
- Accession number :
- edsair.doi.dedup.....0d3462168ee999b670228a886e22df8c