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Mutation screening of X‐chromosomal neuroligin genes: No mutations in 196 autism probands
Author(s) -
Vincent John B.,
Kolozsvari Debbie,
Roberts Wendy S.,
Bolton Patrick F.,
Gurling Hugh M.D.,
Scherer Stephen W.
Publication year - 2004
Publication title -
american journal of medical genetics part b: neuropsychiatric genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.393
H-Index - 126
eISSN - 1552-485X
pISSN - 1552-4841
DOI - 10.1002/ajmg.b.30069
Subject(s) - neuroligin , genetics , autism , heritability of autism , biology , proband , mutation , gene , frameshift mutation , neurodevelopmental disorder , neurexin , phenotype , medicine , psychiatry , excitatory postsynaptic potential , receptor , postsynaptic potential
Autism, a childhood neuropsychiatric disorder with a strong genetic component, is currently the focus of considerable attention within the field of human genetics as well many other medical‐related disciplines. A recent study has implicated two X‐chromosomal neuroligin genes, NLGN3 and NLGN4 , as having an etiological role in autism, having identified a frameshift mutation in one gene and a substitution mutation in the other, segregating in multiplex autism spectrum families (Jamain et al. [2003: Nat Genet 34:27–29]). The function of neuroligin as a trigger for synapse formation would suggest that such mutations would likely result in some form of pathological manifestation. Our own study, screening a larger sample of 196 autism probands, failed to identify any mutations that would affect the coding regions of these genes. Our findings suggest that mutations in these two genes are infrequent in autism. © 2004 Wiley‐Liss, Inc.