Mutation Details

DNA changeProtein changeExon/intronTypeReported classificationBatemanSIFTPolyPhenConservedProtein domainRemarksLOVD ID
c.1354G>Ap.Gly452ArgExon 11MissenseDisease-causingKey residueNot toleratedProbably damagingHighly Ig 5 Segregation of the mutation with the disease.The mutation strongly reduces homophilic and heterophilic binding (De Angelis)

Patients

Family# Affected relativesClinical featuresRemarksReference
1 3 Adducted thumbs, Aphasia, Hydrocephalus, Mental retardation, Spastic paraplegia Died < 1yr 2/3. Jouet et al. (1994)

References

YearAuthorTitleJournalVolumePagesWeblink
1999De Angelis et al.Pathological missense mutations of neural cell adhesion molecule L1 affect homophilic and heterophilic binding activities. EMBO J. 18 No. 174744-4453 10469653
2002De Angelis et al.Disease-associated mutations in L1 CAM interfere with ligand interactions and cell-surface expression Hum. Mol. Genet. 111-12 11772994
1994Jouet et al.X-linked spastic paraplegia (SPG1), MASA syndrome and X-linked hydrocephalus result from mutations in the L1 gene Nat. Genet. 7402-407 7920659
2000Kenwrick et al.Neural cell recognition molecule L1: relating biological complexity to human disease mutations Hum. Mol. Genet. 9879-886 10767310