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Intellectual disability syndromic and non-syndromic v0.6062 CRNKL1 Mark Cleghorn gene: CRNKL1 was added
gene: CRNKL1 was added to Intellectual disability syndromic and non-syndromic. Sources: Other
Mode of inheritance for gene: CRNKL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: CRNKL1 were set to complex neurodevelopmental disorder MONDO:0100038
Penetrance for gene: CRNKL1 were set to Complete
Review for gene: CRNKL1 was set to GREEN
Added comment: Unpublished, presented at ESHG June 2024 - Louise Bicknell, University of Otago NZ
8 unrelated families via gene matcher with rare, de novo, missense variants in CRNKL1
severe microcephaly (all, -8 to -11 SD)
ID/epilepsy
pontocerebellar hypoplasia (6/8)
simplified gyration (8/8)
7 variants are missense at p.Arg267 residue
1 variant missense at p.Arg301
RNA-seq on patient fibroblasts - no alteration in gene expression
Zebrafish homolog of Arg267 and Arg301 - mimics observed phenotype (reduced brain development), increased in embryo apoptosis
RNQ seq on affected zebrafish embryos - transcriptome strongly disrupted
Splicing analysis in progress

CRKNL1 supports U6 structure in spliceosome
Sources: Other
Intellectual disability syndromic and non-syndromic v0.3566 KNL1 Zornitza Stark Marked gene: KNL1 as ready
Intellectual disability syndromic and non-syndromic v0.3566 KNL1 Zornitza Stark Gene: knl1 has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.3566 KNL1 Zornitza Stark Phenotypes for gene: KNL1 were changed from to Microcephaly 4, primary, autosomal recessive, MIM# 604321; MONDO:0011437
Intellectual disability syndromic and non-syndromic v0.3565 KNL1 Zornitza Stark Publications for gene: KNL1 were set to
Intellectual disability syndromic and non-syndromic v0.3564 KNL1 Zornitza Stark Mode of inheritance for gene: KNL1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Intellectual disability syndromic and non-syndromic v0.3563 KNL1 Zornitza Stark reviewed gene: KNL1: Rating: GREEN; Mode of pathogenicity: None; Publications: 22983954, 26626498, 27149178, 30304678, 27784895; Phenotypes: Microcephaly 4, primary, autosomal recessive, MIM# 604321, MONDO:0011437; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Intellectual disability syndromic and non-syndromic v0.0 KNL1 Zornitza Stark gene: KNL1 was added
gene: KNL1 was added to Intellectual disability, syndromic and non-syndromic_GHQ. Sources: Expert Review Green,Genetic Health Queensland
Mode of inheritance for gene: KNL1 was set to Unknown