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| Fetal anomalies v1.922 | CACNA1S | Arina Puzriakova Publications for gene: CACNA1S were set to PMID: 33060286; 28012042 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fetal anomalies v1.921 | CACNA1S | Arina Puzriakova Classified gene: CACNA1S as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fetal anomalies v1.921 | CACNA1S | Arina Puzriakova Added comment: Comment on list classification: New gene added to this panel by Rhiannon Mellis (GOSH). Rating Amber inline with this review, awaiting further evidence supporting that this gene can cause a fetal phenotype. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fetal anomalies v1.921 | CACNA1S | Arina Puzriakova Gene: cacna1s has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fetal anomalies v1.900 | CACNA1S |
Rhiannon Mellis gene: CACNA1S was added gene: CACNA1S was added to Fetal anomalies. Sources: Expert Review,Literature Mode of inheritance for gene: CACNA1S was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CACNA1S were set to PMID: 33060286; 28012042 Phenotypes for gene: CACNA1S were set to Congenital myopathy; arthrogryposis Review for gene: CACNA1S was set to AMBER Added comment: This gene and phenotype were reviewed during a meeting on 21st October 2021 between representatives of the North Thames and Central & South R21 testing GLHs. Clinical review and curation was performed by Lyn Chitty, Alison Male, Rowenna Roberts, Rhiannon Mellis (North Thames GLH) and Stephanie Allen, Denise Williams and Esther Kinning (Central & South GLH). Outcome of review: May be fetally relevant but currently limited evidence, support adding to the Fetal anomalies panel as Amber gene. Details of review: Previously only monoallelic variants reported associated with malignant hyperthermia and periodic paralysis but more recently biallelic variants have been associated with congenital myopathy. In Ravenscroft et al 2020 (PMID: 33060286) the reported biallelic variants were VUS but strong suspicion of causality: the proband had polyhydramnios, scalp oedema, bilateral wrist contractures, bilateral talipes and reduced fetal movements, ToP at 26/40. Mild facial dysmorphic features were noted on autopsy, including low anterior hairline, mild hypertelorism and moderate retrognathia. A previous pregnancy was affected with polyhydramnios and reduced fetal movements, delivered at 32/40 due to placental abruption and died at 10 days. On photos the baby had ptosis and broad nasal tip. The biallelic variants segregated within the family (parents and the 2 unaffected sibs all het). No cell lines available for functional studies. Another study (PMID: 28012042) reports 7 families with congenital myopathy and CACNA1S mutations (both recessive and dominant), of whom 3 had cases with antenatal onset (reduced fetal movements). Sources: Expert Review, Literature |
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