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| Ataxia and cerebellar anomalies - narrow panel v2.295 | GLS_GCA | Eleanor Williams Tag for-review was removed from STR: GLS_GCA. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.275 | GLS_GCA | Arina Puzriakova Phenotypes for STR: GLS_GCA were changed from Global developmental delay, progressive ataxia, and elevated glutamine, OMIM:618412; Global developmental delay, progressive ataxia, and elevated glutamine, MONDO:0032733 to Global developmental delay, progressive ataxia, and elevated glutamine, OMIM:618412 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.37 | GLS_GCA | Arina Puzriakova Classified STR: GLS_GCA as Red List (low evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.37 | GLS_GCA |
Arina Puzriakova Added comment: Comment on list classification: Progressive ataxia is the main feature of the disease presentation (childhood-onset), and there are sufficient unrelated cases for inclusion as diagnostic-grade. However, detection of this 5' UTR triplet expansion must first be validated within the Genomics England pipeline. In the meantime, rating Red but will raise the STR for validation with the Rare Disease team. |
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| Ataxia and cerebellar anomalies - narrow panel v2.37 | GLS_GCA | Arina Puzriakova Str: gls_gca has been classified as Red List (Low Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.36 | GLS_GCA |
Arina Puzriakova STR: GLS_GCA was added STR: GLS_GCA was added to Ataxia and cerebellar anomalies - narrow panel. Sources: Literature STR, NGS Not Validated, for-review tags were added to STR: GLS_GCA. Mode of inheritance for STR: GLS_GCA was set to BIALLELIC, autosomal or pseudoautosomal Publications for STR: GLS_GCA were set to 30970188 Phenotypes for STR: GLS_GCA were set to Global developmental delay, progressive ataxia, and elevated glutamine, OMIM:618412; Global developmental delay, progressive ataxia, and elevated glutamine, MONDO:0032733 Review for STR: GLS_GCA was set to GREEN Added comment: GLS is associated with relevant phenotypes in OMIM, but currently is not in Gene2Phenoype. ---------- - PMID: 30970188 (2019) - Three unrelated cases who presented with an early-onset global developmental delay, progressive ataxia, and elevated levels of glutamine (MIM# 618412). One patient also showed cerebellar atrophy. All 3 individuals harboured a large trinucleotide (GCA) repeat expansion in the 5' UTR (length: 680-1,500-copy repeats). The repeat expansion was found in homozygosity in 1 case, and occurred in compound heterozygosity with an SNV in the other two cases (missense and frameshift variant, respectively). Functional analysis showed the repeat expansion results in reduced expression and glutaminase deficiency. Sources: Literature |
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