rs74551473
Variant summary
Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1
The NM_000642.3(AGL):c.2546+10T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000343 in 1,605,570 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0020 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00017 ( 2 hom. )
Consequence
AGL
NM_000642.3 intron
NM_000642.3 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.190
Genes affected
AGL (HGNC:321): (amylo-alpha-1, 6-glucosidase, 4-alpha-glucanotransferase) This gene encodes the glycogen debrancher enzyme which is involved in glycogen degradation. This enzyme has two independent catalytic activities which occur at different sites on the protein: a 4-alpha-glucotransferase activity and a amylo-1,6-glucosidase activity. Mutations in this gene are associated with glycogen storage disease although a wide range of enzymatic and clinical variability occurs which may be due to tissue-specific alternative splicing. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -16 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
?
Variant 1-99884461-T-C is Benign according to our data. Variant chr1-99884461-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 256728.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
?
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00198 (301/152344) while in subpopulation AFR AF= 0.0069 (287/41580). AF 95% confidence interval is 0.00625. There are 1 homozygotes in gnomad4. There are 142 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
AGL | NM_000642.3 | c.2546+10T>C | intron_variant | ENST00000361915.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
AGL | ENST00000361915.8 | c.2546+10T>C | intron_variant | 1 | NM_000642.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00197 AC: 300AN: 152226Hom.: 1 Cov.: 32
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GnomAD3 exomes AF: 0.000491 AC: 121AN: 246494Hom.: 0 AF XY: 0.000366 AC XY: 49AN XY: 133848
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GnomAD4 exome AF: 0.000172 AC: 250AN: 1453226Hom.: 2 Cov.: 30 AF XY: 0.000142 AC XY: 103AN XY: 723272
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Glycogen storage disease type III Benign:3
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. - |
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 31, 2024 | - - |
Benign, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Jul 15, 2021 | - - |
not specified Benign:2
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Feb 05, 2018 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Oct 10, 2023 | - - |
Computational scores
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BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at