chr12-47987262-C-T
Variant summary
Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2
The NM_001844.5(COL2A1):c.1266+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.016 in 1,614,042 control chromosomes in the GnomAD database, including 245 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_001844.5 splice_region, intron
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -18 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL2A1 | NM_001844.5 | c.1266+7G>A | splice_region_variant, intron_variant | ENST00000380518.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL2A1 | ENST00000380518.8 | c.1266+7G>A | splice_region_variant, intron_variant | 1 | NM_001844.5 | P1 | |||
COL2A1 | ENST00000337299.7 | c.1059+7G>A | splice_region_variant, intron_variant | 1 | |||||
COL2A1 | ENST00000493991.5 | n.190+7G>A | splice_region_variant, intron_variant, non_coding_transcript_variant | 2 |
Frequencies
GnomAD3 genomes AF: 0.0137 AC: 2090AN: 152116Hom.: 25 Cov.: 32
GnomAD3 exomes AF: 0.0136 AC: 3421AN: 251408Hom.: 35 AF XY: 0.0142 AC XY: 1934AN XY: 135888
GnomAD4 exome AF: 0.0162 AC: 23752AN: 1461808Hom.: 220 Cov.: 33 AF XY: 0.0162 AC XY: 11794AN XY: 727206
GnomAD4 genome AF: 0.0137 AC: 2089AN: 152234Hom.: 25 Cov.: 32 AF XY: 0.0141 AC XY: 1046AN XY: 74432
ClinVar
Submissions by phenotype
not specified Benign:4
Benign, no assertion criteria provided | clinical testing | Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC) | - | - - |
Benign, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, Amsterdam University Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | May 18, 2016 | 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. - |
not provided Benign:4
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Oct 06, 2023 | - - |
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 31, 2024 | - - |
Likely benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | Aug 31, 2018 | - - |
Achondrogenesis type II;C0265279:Kniest dysplasia;C0432214:Namaqualand hip dysplasia;C0432221:Spondylometaphyseal dysplasia - Sutcliffe type;C0700635:Spondyloepimetaphyseal dysplasia, Strudwick type;C0796173:Spondyloperipheral dysplasia;C1442965:Legg-Calve-Perthes disease;C1835437:Platyspondylic dysplasia, Torrance type;C1836080:Stickler syndrome, type I, nonsyndromic ocular;C1836683:Spondyloepiphyseal dysplasia with metatarsal shortening;C1851536:Multiple epiphyseal dysplasia, Beighton type;C1852989:Vitreoretinopathy with phalangeal epiphyseal dysplasia;C2020284:Stickler syndrome type 1;C2745959:Spondyloepiphyseal dysplasia congenita;C4225273:Spondyloepiphyseal dysplasia, Stanescu type;C4551562:Avascular necrosis of femoral head, primary, 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Nov 10, 2021 | - - |
Stickler syndrome type 1 Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 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. - |
Type II Collagenopathies Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 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. - |
Connective tissue disorder Benign:1
Benign, criteria provided, single submitter | clinical testing | Genome Diagnostics Laboratory, The Hospital for Sick Children | Apr 23, 2022 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at