Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes.

Leonarda Ianzano, Junjun Zhang, Elayne M. Chan, Xiao Chu Zhao, Hannes Lohi, Stephen W. Scherer, Berge A. Minassian

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Progressive Myoclonus Epilepsy (PME) of the Lafora type is an autosomal recessive disease, which presents in teenage years with myoclonia and generalized seizures leading to death within a decade of onset. It is characterized by pathognomonic inclusions, Lafora bodies (LB), in neurons and other cell types. Two genes causing Lafora disease (LD), EPM2A on chromosome 6q24 and NHLRC1 (EPM2B) on chromosome 6p22.3 have been identified, and our recent results indicate there is at least one other gene causing the disease. The EPM2A gene product, laforin, is a protein tyrosine phosphatase (PTP) with a carbohydrate-binding domain (CBD) in the N-terminus. NHLRC1 encodes a protein named malin, containing a zinc finger of the RING type in the N-terminal half and 6 NHL-repeat domains in the C-terminal direction. To date 43 different variations in EPM2A and 23 in NHLRC1 are known, including missense, nonsense, frameshift, and deletions. We have developed a human LD mutation database using a new generic biological database cross-referencing platform. The database, which currently contains 66 entries is accessible on the World Wide Web (http://projects.tcag.ca/lafora). Entries can be submitted via the curator of the database or via a web-based form. (c) 2005 Wiley-Liss, Inc.

Original languageEnglish (US)
Number of pages1
JournalHuman mutation.
Volume26
Issue number4
StatePublished - Oct 1 2005

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Lafora Disease
Databases
Mutation
Genes
Chromosomes
Protein Tyrosine Phosphatases
Inclusion Bodies
Zinc Fingers
Internet
Seizures
Carbohydrates
Neurons
Proteins

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Ianzano, L., Zhang, J., Chan, E. M., Zhao, X. C., Lohi, H., Scherer, S. W., & Minassian, B. A. (2005). Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes. Human mutation., 26(4).

Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes. / Ianzano, Leonarda; Zhang, Junjun; Chan, Elayne M.; Zhao, Xiao Chu; Lohi, Hannes; Scherer, Stephen W.; Minassian, Berge A.

In: Human mutation., Vol. 26, No. 4, 01.10.2005.

Research output: Contribution to journalArticle

Ianzano, L, Zhang, J, Chan, EM, Zhao, XC, Lohi, H, Scherer, SW & Minassian, BA 2005, 'Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes.', Human mutation., vol. 26, no. 4.
Ianzano L, Zhang J, Chan EM, Zhao XC, Lohi H, Scherer SW et al. Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes. Human mutation. 2005 Oct 1;26(4).
Ianzano, Leonarda ; Zhang, Junjun ; Chan, Elayne M. ; Zhao, Xiao Chu ; Lohi, Hannes ; Scherer, Stephen W. ; Minassian, Berge A. / Lafora progressive Myoclonus Epilepsy mutation database-EPM2A and NHLRC1 (EPM2B) genes. In: Human mutation. 2005 ; Vol. 26, No. 4.
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