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Am J Med Genet C Semin Med Genet. 2014 Sep;166C(3):315-26. doi: 10.1002/ajmg.c.31413. Epub 2014 Aug 28.

The transcriptional regulator ADNP links the BAF (SWI/SNF) complexes with autism.

Abstract

Mutations in ADNP were recently identified as a frequent cause of syndromic autism, characterized by deficits in social communication and interaction and restricted, repetitive behavioral patterns. Based on its functional domains, ADNP is a presumed transcription factor. The gene interacts closely with the SWI/SNF complex by direct and experimentally verified binding of its C-terminus to three of its core components. A detailed and systematic clinical assessment of the symptoms observed in our patients allows a detailed comparison with the symptoms observed in other SWI/SNF disorders. While the mutational mechanism of the first 10 patients identified suggested a gain of function mechanism, an 11th patient reported here is predicted haploinsufficient. The latter observation may raise hope for therapy, as addition of NAP, a neuroprotective octapeptide named after the first three amino acids of the sequence NAPVSPIQ, has been reported by others to ameliorate some of the cognitive abnormalities observed in a knockout mouse model. It is concluded that detailed clinical and molecular studies on larger cohorts of patients are necessary to establish a better insight in the genotype phenotype correlation and in the mutational mechanism.

KEYWORDS:

ADNP; BAF complexes; SWI/SNF; autism

PMID:
25169753
PMCID:
PMC4195434
DOI:
10.1002/ajmg.c.31413
[Indexed for MEDLINE]
Free PMC Article

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