rs72659319
Variant summary
Our verdict is Pathogenic. Variant got 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_000089.4(COL1A2):c.3034G>A(p.Gly1012Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,454,186 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1012R) has been classified as Pathogenic.
Frequency
Consequence
NM_000089.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 19 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL1A2 | NM_000089.4 | c.3034G>A | p.Gly1012Ser | missense_variant | 46/52 | ENST00000297268.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL1A2 | ENST00000297268.11 | c.3034G>A | p.Gly1012Ser | missense_variant | 46/52 | 1 | NM_000089.4 | P1 | |
COL1A2 | ENST00000478215.1 | n.593G>A | non_coding_transcript_exon_variant | 4/4 | 3 | ||||
COL1A2 | ENST00000481570.5 | n.3007G>A | non_coding_transcript_exon_variant | 5/8 | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD4 exome AF: 6.88e-7 AC: 1AN: 1454186Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 722200
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Clinical Genetics and Genomics, Karolinska University Hospital | Dec 02, 2014 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Dec 10, 2021 | Occurs in the triple helical domain and replaces a glycine in a canonical Gly-X-Y repeat; missense substitution of a canonical glycine residue is expected to disrupt normal protein folding and function, and this is an established mechanism of disease (Jovanovic M et al. 2021); Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 16705691, 25944380, 29150909, 8094076, 17078022, 8401517, 9367795, 27519266, 15241796, 29807018, 30984112, 30692697, 33939306, 30715774, 31414283, 25450603) - |
Osteogenesis imperfecta Pathogenic:1
Pathogenic, no assertion criteria provided | clinical testing | Baylor Genetics | Nov 18, 2018 | - - |
Osteogenesis imperfecta with normal sclerae, dominant form Pathogenic:1
Pathogenic, no assertion criteria provided | clinical testing | Department of Medical Sciences, Uppsala University | - | - - |
Osteogenesis imperfecta type I;C0268335:Ehlers-Danlos syndrome, classic type, 1 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | May 25, 2023 | This variant disrupts the triple helix domain of COL1A2. Glycine residues within the Gly-Xaa-Yaa repeats of the triple helix domain are required for the structure and stability of fibrillar collagens (PMID: 7695699, 8218237, 19344236). In COL1A2, variants affecting these glycine residues are significantly enriched in individuals with disease (PMID: 9016532, 17078022) compared to the general population (ExAC). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt COL1A2 protein function. ClinVar contains an entry for this variant (Variation ID: 216908). This missense change has been observed in individuals with autosomal dominant osteogenesis imperfecta (PMID: 8094076, 16705691, 22589248, 25450603, 27519266). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1012 of the COL1A2 protein (p.Gly1012Ser). For these reasons, this variant has been classified as Pathogenic. - |
Osteogenesis imperfecta, perinatal lethal Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Shenzhen Institute of Pediatrics, Shenzhen Children's Hospital | Sep 04, 2017 | The mutation of c.3034G>A p.(Gly1012Ser) is de novo. - |
Osteogenesis imperfecta, perinatal lethal;C0268362:Osteogenesis imperfecta type III;C0268363:Osteogenesis imperfecta with normal sclerae, dominant form Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | UCLA Clinical Genomics Center, UCLA | Nov 05, 2013 | - - |
Postmenopausal osteoporosis;C0268358:Osteogenesis imperfecta, perinatal lethal;C0268362:Osteogenesis imperfecta type III;C0268363:Osteogenesis imperfecta with normal sclerae, dominant form;C4303789:Ehlers-Danlos syndrome, cardiac valvular type;CN293783:Ehlers-danlos syndrome, arthrochalasia type, 2 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Oct 31, 2018 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at