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Mendeliome v1.2094 BHLHE22 Zornitza Stark Marked gene: BHLHE22 as ready
Mendeliome v1.2094 BHLHE22 Zornitza Stark Gene: bhlhe22 has been classified as Green List (High Evidence).
Mendeliome v1.2094 BHLHE22 Zornitza Stark Classified gene: BHLHE22 as Green List (high evidence)
Mendeliome v1.2094 BHLHE22 Zornitza Stark Gene: bhlhe22 has been classified as Green List (High Evidence).
Mendeliome v1.2093 BHLHE22 Zornitza Stark gene: BHLHE22 was added
gene: BHLHE22 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BHLHE22 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: BHLHE22 were set to 39502664
Phenotypes for gene: BHLHE22 were set to Neurodevelopmental disorder, MONDO:0700092, BHLHE22-related
Review for gene: BHLHE22 was set to GREEN
Added comment: Four individuals with de novo missense variants within the highly conserved helix-loop-helix domain and seven individuals from five unrelated families with a recurrent homozygous frameshift variant, p.(Gly74Alafs*18).

Individuals presented with absent or limited speech, severely impaired motor abilities, intellectual disability (ID), involuntary movements, autistic traits with stereotypies, abnormal muscle tone. The majority of individuals had partial or complete agenesis of the corpus callosum (ACC). Additional symptoms comprised epilepsy, variable dysmorphic features, and eye anomalies. One additional individual had spastic paraplegia without delayed development and ACC, expanding the phenotype to milder and later onset forms.

Mice lacking bhlhe22 show nearly complete loss of three brain comminsure, including the corpus callosum.
Sources: Literature