ClinVar Miner

Submissions for variant NM_001482.3(GATM):c.*699A>C

gnomAD frequency: 0.00099  dbSNP: rs750817737
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel, ClinGen RCV000289009 SCV002600090 benign Arginine:glycine amidinotransferase deficiency 2022-06-06 reviewed by expert panel curation The NM_001482.3:c.*699A>C variant is a single nucleotide substitution in the 3'UTR of GATM. Because the variant is located in the 3'UTR, it is not expected to alter the amino acid sequence. The highest population minor allele frequency in gnomAD v2.1.1 is 0.00149 (23/15424 alleles) in the non-Finnish European population, which is higher than the ClinGen CCDS VCEP’s threshold for BA1 (>0.0005), and therefore meets this criterion (BA1). There is a ClinVar entry for this variant (Variation ID: 316205). In summary, this variant meets the criteria to be classified as benign for AGAT deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel (Specifications Version 1.1.0): BA1. (Classification approved by the ClinGen CCDS VCEP on June 6, 2022).
Illumina Laboratory Services, Illumina RCV000289009 SCV000391418 uncertain significance Arginine:glycine amidinotransferase deficiency 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.

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