Abstract:
:Thomsen's disease (autosomal dominant myotonia congenita) has recently been linked to chromosome 7q35 in the region of the human skeletal muscle chloride channel gene (HUMCLC). Single strand conformation polymorphism analysis (SSCP) was used to screen DNA from members of four unrelated pedigrees with this disorder for mutations in HUMCLC. Abnormal bands were detected in all affected, but no unaffected individuals in three of the families. Direct sequencing revealed a G to A transition that results in the substitution of a glutamic acid for a glycine residue located between the third and fourth predicted membrane spanning segments. This glycine residue is conserved in all known members of this class of chloride channel proteins. These findings establish HUMCLC as the Thomsen's disease gene.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
George AL Jr,Crackower MA,Abdalla JA,Hudson AJ,Ebers GCdoi
10.1038/ng0493-305subject
Has Abstractpub_date
1993-04-01 00:00:00pages
305-10issue
4eissn
1061-4036issn
1546-1718journal_volume
3pub_type
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