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Fetal anomalies v0.4208 SGMS2 Zornitza Stark Marked gene: SGMS2 as ready
Fetal anomalies v0.4208 SGMS2 Zornitza Stark Gene: sgms2 has been classified as Red List (Low Evidence).
Fetal anomalies v0.4208 SGMS2 Zornitza Stark Classified gene: SGMS2 as Red List (low evidence)
Fetal anomalies v0.4208 SGMS2 Zornitza Stark Gene: sgms2 has been classified as Red List (Low Evidence).
Fetal anomalies v0.4192 SGMS2 Krithika Murali gene: SGMS2 was added
gene: SGMS2 was added to Fetal anomalies. Sources: Literature
Mode of inheritance for gene: SGMS2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SGMS2 were set to 34236445; 32028018; 30779713; 34761145; 34504906
Phenotypes for gene: SGMS2 were set to Calvarial doughnut lesions with bone fragility with or without spondylometaphyseal dysplasia - MIM#126550
Review for gene: SGMS2 was set to RED
Added comment: Heterozygous variants in SGMS2 associated with childhood-onset osteoporosis and skeletal
dysplasia. Evidence suggests that some heterozygous missense variants have a dominant negative effect and lead to severe bone fragility and spondylometaphyseal dysplasia, while one recurrent nonsense variant (c.148C > T, p.Arg50*) has been associated with milder bone fragility with or without cranial sclerosis (cranial doughnut lesions). No antenatal features reported in published cases including growth parameters.

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PMID 32028018 Robinson et al 2020 - provide phenotypic information for 2 unrelated individuals with c.148C > T, p.Arg50* variant. No antenatal history reported.

PMID: 30779713 Pekkinen et al 2019 - identified heterozygous SGMS2 variants in 13 individuals from 6 unrelated families with early-onset osteoporosis and skeletal dysplasia. Identified recurrent nonsense variant in 4 families ( p.Arg50*) presented with childhood-onset osteoporosis with or without cranial sclerosis. 2 families had p.Ile62Ser or p.Met64Arg and. more severe phenotype including with neonatal fracture (clavicular fracture at birth), severe short stature, and spondylometaphyseal dysplasia. No antenatal phenotype/birth growth parameters provided.

PMID: 34761145 Makitie et al 2021 - further examination of bone changes in two individuals already reported in Pekkinen et al 2019 paper with recurrent nonsense variant.

PMID: 34504906 Basalom et al 2021 - no antenatal features reported
Sources: Literature