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Intellectual disability syndromic and non-syndromic v0.6188 MED16 Mark Cleghorn gene: MED16 was added
gene: MED16 was added to Intellectual disability syndromic and non-syndromic. Sources: Other
Mode of inheritance for gene: MED16 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: MED16 were set to complex neurodevelopmental disorder MONDO:0100038
Penetrance for gene: MED16 were set to unknown
Review for gene: MED16 was set to GREEN
Added comment: MED16
Charlotte Guillouet, Imagine institute Paris
ESHG presentation 4/6/24, unpublished

MED16 is part of tail of ‘mediator complex’
Plays a role in enhancer/promotor regions

Disruptive variants in other genes encoding proteins within this mediator complex (MED11/12/12/17/20, CDK8) are assoc w neurodevelopmental/neurodegenerative disorders

Cases
index family
Sibs (M/F) to consanguineous parents w NDD/mod ID, tetralogy of Fallot or VSD, bilat deafness, micrognathia, malar hypoplasia, dental AbN, pre auricular tags, hypoplastic nails, brachydactly
WES: biallelic MED16 p.Asp217Asn

Via genematcher
16 families total, 22 individuals, homozygous or compound het rare MED16 variants
Mixture of pLoF and missense variants

Motor delay in 16/17
DD or ID in 17/17
Speech delay in 15/15
6/19 ToF
7/19 other septal/aortic defects
6/18 deafness
11/18 microretognathia
6/17 cleft palate
8/19 preauricular tags
9/20 puffy eyelids
12/20 nasal dysplasia (most commonly short columella w bulbous nasal tip)
7/20 corpus callosum anomalies

Not clear that functional work recapitulated phenotype as yet?
Immunofluroescence on HeLa cells transfected with variants observed ?conclusion
MED16 knockout mouse > growth delay, pre weaning lethality
MED16 knockout zebrafish > reduced body length, early death, no obvious craniofacial phenotype
Sources: Other
Intellectual disability syndromic and non-syndromic v0.1353 CDK8 Zornitza Stark Marked gene: CDK8 as ready
Intellectual disability syndromic and non-syndromic v0.1353 CDK8 Zornitza Stark Gene: cdk8 has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.1353 CDK8 Zornitza Stark Classified gene: CDK8 as Green List (high evidence)
Intellectual disability syndromic and non-syndromic v0.1353 CDK8 Zornitza Stark Gene: cdk8 has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.1352 CDK8 Zornitza Stark gene: CDK8 was added
gene: CDK8 was added to Intellectual disability, syndromic and non-syndromic_GHQ_VCGS. Sources: Literature
Mode of inheritance for gene: CDK8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CDK8 were set to 30905399
Phenotypes for gene: CDK8 were set to Intellectual disability; dysmorphism; congenital abnormalities; seizures
Review for gene: CDK8 was set to GREEN
Added comment: 12 unrelated individuals, missense variants demonstrated as de novo in 10. All variants localize to the ATP-binding pocket of the kinase domain.
Sources: Literature