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  Congenital myasthenia in Brahman calves caused by homozygosity for a CHRNE truncating mutation

Kraner, S., Sieb, J., Thompson, P., & Steinlein, O. (2002). Congenital myasthenia in Brahman calves caused by homozygosity for a CHRNE truncating mutation. Neurogenetics, 4(2), 87-91.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-A13F-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-A140-0
Genre: Journal Article
Alternative Title : Neurogenetics

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 Creators:
Kraner, S1, Author
Sieb, JP1, Author
Thompson, PN1, Author
Steinlein, OK1, Author
Affiliations:
1Max Planck Institute of Psychiatry, Max Planck Society, ou_1607137              

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Free keywords: congenital myasthenia; Brahman calves; CHRNE; acetylcholine receptor
 Abstract: To elucidate the genetic defect in four previously reported related Brahman calves with severe myasthenic weakness, we determined the genomic structure of the gene encoding the bovine c-subunit (bovCHRNE) of the acetylcholine receptor (AChR). Amplification of DNA isolated from paraplast-embedded tissue samples from one of the myasthenic calves and subsequent sequencing of all bovCHRNE exons revealed a homozygous 20-bp deletion within exon 5 (470del20). The deletion causes a frame shift followed by a premature stop codon in the predicted bovCHRNE protein. Thus, the 470del20 mutation reported here leads to a non-functional allele, explaining the impairment of neuromuscular transmission observed in the affected Brahman calves. With a survival time limited to only several months, the effect on neuromuscular transmission was more pronounced in the calves than that observed in humans homozygous for truncating CHRNE mutations. This may be due to a different capacity to express the fetal-type AChR after birt

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Language(s): eng - English
 Dates: 2002-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 4035
ISI: 000179527100004
 Degree: -

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Title: Neurogenetics
  Alternative Title : Neurogenetics
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 4 (2) Sequence Number: - Start / End Page: 87 - 91 Identifier: ISSN: 1364-6745