rs727504460
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_080680.3(COL11A2):c.3932A>G(p.Asn1311Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000899 in 1,613,518 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. N1311K) has been classified as Uncertain significance.
Frequency
Consequence
NM_080680.3 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal dominant nonsyndromic hearing loss 13Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
- nonsyndromic genetic hearing lossInheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: ClinGen
- otospondylomegaepiphyseal dysplasia, autosomal dominantInheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, Ambry Genetics, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
- autosomal recessive nonsyndromic hearing loss 53Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- otospondylomegaepiphyseal dysplasiaInheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
- otospondylomegaepiphyseal dysplasia, autosomal recessiveInheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
- autosomal dominant nonsyndromic hearing lossInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- fibrochondrogenesisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hearing loss, autosomal recessiveInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| COL11A2 | NM_080680.3 | c.3932A>G | p.Asn1311Ser | missense_variant | Exon 54 of 66 | ENST00000341947.7 | NP_542411.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| COL11A2 | ENST00000341947.7 | c.3932A>G | p.Asn1311Ser | missense_variant | Exon 54 of 66 | 5 | NM_080680.3 | ENSP00000339915.2 | ||
| COL11A2 | ENST00000374708.8 | c.3674A>G | p.Asn1225Ser | missense_variant | Exon 52 of 64 | 5 | ENSP00000363840.4 | |||
| COL11A2 | ENST00000477772.1 | n.273-2731A>G | intron_variant | Intron 5 of 8 | 2 |
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152064Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.000150 AC: 37AN: 247394 AF XY: 0.000119 show subpopulations
GnomAD4 exome AF: 0.0000869 AC: 127AN: 1461454Hom.: 0 Cov.: 35 AF XY: 0.0000867 AC XY: 63AN XY: 727042 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000118 AC: 18AN: 152064Hom.: 0 Cov.: 31 AF XY: 0.0000942 AC XY: 7AN XY: 74284 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
The COL11A2 c.3932A>G; p.Asn1311Ser variant (rs727504460), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 178812). This variant is found in the Ashkenazi Jewish population with an allele frequency of 0.25% (26/10,272 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.269). Due to limited information, the clinical significance of this variant is uncertain at this time. -
Reported as a variant of uncertain significance in an individual with bilateral sensorineural hearing loss, developmental delay, and speech delay; however this individual also harbored variants of uncertain significance in the KCNQ4, MYO3A, and TJP2 genes (PMID: 29907799); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 29907799) -
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not specified Uncertain:2
Variant summary: COL11A2 c.3932A>G (p.Asn1311Ser) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00015 in 247394 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in COL11A2 causing COL11A2-Related Disorders, allowing no conclusion about variant significance. c.3932A>G has been reported in the literature in at least an individual affected with hearing loss, developmental and speech delay (example: Sheppard_2018). This report does not provide unequivocal conclusions about association of the variant with COL11A2-Related Disorders. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 29907799). ClinVar contains an entry for this variant (Variation ID: 178812). Based on the evidence outlined above, the variant was classified as uncertain significance. -
The Asn1311Ser variant in COL11A2 has not been reported in affected individuals or in large population studies. Computational analyses (biochemical amino acid p roperties, conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide strong s upport for or against an impact to the protein. In summary, additional data is n eeded to determine the clinical significance of this variant. -
Otospondylomegaepiphyseal dysplasia, autosomal dominant Uncertain:1
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Otospondylomegaepiphyseal dysplasia, autosomal recessive Uncertain:1
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. -
Otospondylomegaepiphyseal dysplasia, autosomal dominant;C1864746:Autosomal recessive nonsyndromic hearing loss 53;C1866095:Autosomal dominant nonsyndromic hearing loss 13;C3281128:Fibrochondrogenesis 2;C5551484:Otospondylomegaepiphyseal dysplasia, autosomal recessive Uncertain:1
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Autosomal dominant nonsyndromic hearing loss 13 Uncertain:1
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Fibrochondrogenesis 2 Uncertain:1
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. -
Stickler Syndrome, Dominant Uncertain:1
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COL11A2-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at