rs149924028
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6
The NM_004369.4(COL6A3):c.776C>T(p.Ala259Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000478 in 1,614,186 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A259T) has been classified as Likely benign.
Frequency
Consequence
NM_004369.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL6A3 | NM_004369.4 | c.776C>T | p.Ala259Val | missense_variant | 4/44 | ENST00000295550.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL6A3 | ENST00000295550.9 | c.776C>T | p.Ala259Val | missense_variant | 4/44 | 1 | NM_004369.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.000322 AC: 49AN: 152218Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000377 AC: 94AN: 249050Hom.: 0 AF XY: 0.000430 AC XY: 58AN XY: 134790
GnomAD4 exome AF: 0.000494 AC: 722AN: 1461850Hom.: 1 Cov.: 32 AF XY: 0.000468 AC XY: 340AN XY: 727226
GnomAD4 genome ? AF: 0.000328 AC: 50AN: 152336Hom.: 0 Cov.: 33 AF XY: 0.000255 AC XY: 19AN XY: 74490
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Dec 01, 2022 | COL6A3: BP4 - |
Uncertain significance, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Jun 07, 2018 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | May 11, 2023 | - - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Nov 23, 2016 | - - |
Collagen 6-related myopathy Benign:1
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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Bethlem myopathy 1A Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Jan 22, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at