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Intellectual disability syndromic and non-syndromic v0.4130 ZMYM2 Zornitza Stark Phenotypes for gene: ZMYM2 were changed from Abnormality of the urinary system; Global developmental delay; Intellectual disability; Microcephaly; Abnormality of the cardiovascular system; Autism; Seizures; Abnormality of the head or neck; Abnormality of the nail; Small hand; Short foot; Clinodactyly to Neurodevelopmental-craniofacial syndrome with variable renal and cardiac abnormalities, MIM# 619522
Intellectual disability syndromic and non-syndromic v0.4129 ZMYM2 Zornitza Stark edited their review of gene: ZMYM2: Changed phenotypes: Neurodevelopmental-craniofacial syndrome with variable renal and cardiac abnormalities, MIM# 619522
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark edited their review of gene: ZMYM2: Changed rating: GREEN; Changed publications: 32891193; Changed phenotypes: Congenital anomalies of kidney and urinary tract, Neurodevelopmental disorder; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark Marked gene: ZMYM2 as ready
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark Added comment: Comment when marking as ready: Syndromic CAKUT, variable extra-renal phenotype but sufficient families with ID for Green rating.
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark Gene: zmym2 has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark Classified gene: ZMYM2 as Green List (high evidence)
Intellectual disability syndromic and non-syndromic v0.3014 ZMYM2 Zornitza Stark Gene: zmym2 has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.3013 ZMYM2 Konstantinos Varvagiannis gene: ZMYM2 was added
gene: ZMYM2 was added to Intellectual disability syndromic and non-syndromic. Sources: Literature
Mode of inheritance for gene: ZMYM2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ZMYM2 were set to 32891193
Phenotypes for gene: ZMYM2 were set to Abnormality of the urinary system; Global developmental delay; Intellectual disability; Microcephaly; Abnormality of the cardiovascular system; Autism; Seizures; Abnormality of the head or neck; Abnormality of the nail; Small hand; Short foot; Clinodactyly
Penetrance for gene: ZMYM2 were set to unknown
Review for gene: ZMYM2 was set to AMBER
Added comment: Heterozygous pathogenic (pLoF) ZMYM2 variants have been reported in individuals with syndromic presentation including CAKUT (in several cases) and variable neurological manifestations among extra-renal features. DD and ID were reported in some of the families described to date as summarized below. You might consider inclusion with green/amber rating in the ID panel and green in the panel for CAKUT.

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Connaughton et al (2020 - PMID: 32891193) report on 19 individuals (from 15 unrelated families) with heterozygous pathogenic ZMYM2 variants. [Article not reviewed in detail].

Affected individuals from 7 families presented with CAKUT while all of them displayed extra-renal features. Neurological manifestations were reported in 16 individuals from 14 families (data not available for 1 fam), among others hypotonia (3/14 fam), speech delay (4/14 fam), global DD (9/14 fam), ID (4/14 fam), microcephaly (4/14 fam). ASD was reported in 4 fam (4 indiv). Seizures were reported in 2 fam (2 indiv). Variable other features included cardiac defects, facial dysmorphisms, small hands and feet with dys-/hypo-plastic nails and clinodactyly.

14 pLoF variants were identified, in most cases as de novo events (8 fam). In 2 families the variant was inherited from an affected parent. Germline mosaicism occurred in 1 family.

The human disease features were recapitulated in a X. tropicalis morpholino knockdown, with expression of truncating variants failing to rescue renal and craniofacial defects. Heterozygous Zmym2-deficient mice also recapitulated the features of CAKUT.

ZMYM2 (previously ZNF198) encodes a nuclear zinc finger protein localizing to the nucleus (and PML nuclear body).

It has previously been identified as transcriptional corepressor interacting with nuclear receptors and the LSD1-CoREST-HDAC1 complex. It has also been shown to interact with FOXP transcription factors.

The authors provide evidence for loss of interaction of the truncated ZMYM2 with FOXP1 (mutations in the latter having recently been reported in syndromic CAKUT).
Sources: Literature