U.S. flag

An official website of the United States government

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.

Adam MP, Feldman J, Mirzaa GM, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2024.

Cover of GeneReviews®

GeneReviews® [Internet].

Show details
Figure 1. . Findings in a family illustrating variable expressivity among individuals with the same pathogenic variant.

Figure 1.

Findings in a family illustrating variable expressivity among individuals with the same pathogenic variant. The proband, a boy (arrow) with febrile convulsions since age seven months, had frequent, difficult-to-control partial seizures beginning at age three years. His sister had infrequent partial seizures starting early in school age. Their father had a single seizure as a young adult. All three had the same pathogenic variant in the fourth domain fifth segment (D4S5) on the pore region of the SCN1A (Nav1.1) protein (see Molecular Pathogenesis) [M Sotero, personal observation].

From: SCN1A Seizure Disorders

Copyright © 1993-2024, University of Washington, Seattle. GeneReviews is a registered trademark of the University of Washington, Seattle. All rights reserved.

GeneReviews® chapters are owned by the University of Washington. Permission is hereby granted to reproduce, distribute, and translate copies of content materials for noncommercial research purposes only, provided that (i) credit for source (http://www.genereviews.org/) and copyright (© 1993-2024 University of Washington) are included with each copy; (ii) a link to the original material is provided whenever the material is published elsewhere on the Web; and (iii) reproducers, distributors, and/or translators comply with the GeneReviews® Copyright Notice and Usage Disclaimer. No further modifications are allowed. For clarity, excerpts of GeneReviews chapters for use in lab reports and clinic notes are a permitted use.

For more information, see the GeneReviews® Copyright Notice and Usage Disclaimer.

For questions regarding permissions or whether a specified use is allowed, contact: ude.wu@tssamda.

Views

  • Cite this Page
  • PDF version of this page (1.1M)

Related information

  • MedGen
    Related information in MedGen
  • OMIM
    Related OMIM records
  • PMC
    PubMed Central citations
  • PubMed
    Links to PubMed
  • Gene
    Locus Links

Similar articles in PubMed

See reviews...See all...

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...