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Intellectual disability v3.1128 EIF3F Arina Puzriakova Phenotypes for gene: EIF3F were changed from Intellectual disability; Seizures; Behavioral abnormality; Sensorineural hearing impairment to Mental retardation, autosomal recessive 67, OMIM:618295
Intellectual disability v2.545 EIF3F Louise Daugherty Classified gene: EIF3F as Green List (high evidence)
Intellectual disability v2.545 EIF3F Louise Daugherty Added comment: Comment on list classification: New gene added by external expert and reviewed by curation team, enough evidence to support gene-disease association and relevance to this panel to rate this gene Green
Intellectual disability v2.545 EIF3F Louise Daugherty Gene: eif3f has been classified as Green List (High Evidence).
Intellectual disability v2.535 EIF3F Konstantinos Varvagiannis gene: EIF3F was added
gene: EIF3F was added to Intellectual disability. Sources: Literature,Expert Review
Mode of inheritance for gene: EIF3F was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EIF3F were set to 30409806
Phenotypes for gene: EIF3F were set to Intellectual disability; Seizures; Behavioral abnormality; Sensorineural hearing impairment
Penetrance for gene: EIF3F were set to Complete
Review for gene: EIF3F was set to GREEN
Added comment: EIF3F was identified in a recent DDD publication (PMID: 30409806) as a cause of autosomal recessive intellectual disability.

All 9 individuals reported were homozygous for a missense variant (Phe232Val - rs141976414) which has a frequency of 0.12% in non-Finnish Europeans.

Features included intellectual disability (9/9), seizures (6/9), behavioral problems (3/9) and sensorineural hearing loss (3/9). Facial features were not specific.

Extensive functional studies were performed and support pathogenicity of the variant in the homozygous state (reduced protein levels, reduced translation rate in line with the role of EIF3F encoding a subunit for eukaryotic translation initiation factor 3, as well as reduced proliferation rates).

As a result this gene can be considered for inclusion in this panel as green.
Sources: Literature, Expert Review