rs373983482

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS1

The NM_080680.3(COL11A2):​c.1427C>T​(p.Ala476Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000546 in 1,611,866 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts 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. A476E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000058 ( 1 hom. )

Consequence

COL11A2
NM_080680.3 missense

Scores

3
9
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 7.86

Publications

5 publications found
Variant links:
Genes affected
COL11A2 (HGNC:2187): (collagen type XI alpha 2 chain) This gene encodes one of the two alpha chains of type XI collagen, a minor fibrillar collagen. It is located on chromosome 6 very close to but separate from the gene for retinoid X receptor beta. Type XI collagen is a heterotrimer but the third alpha chain is a post-translationally modified alpha 1 type II chain. Proteolytic processing of this type XI chain produces PARP, a proline/arginine-rich protein that is an amino terminal domain. Mutations in this gene are associated with type III Stickler syndrome, otospondylomegaepiphyseal dysplasia (OSMED syndrome), Weissenbacher-Zweymuller syndrome, autosomal dominant non-syndromic sensorineural type 13 deafness (DFNA13), and autosomal recessive non-syndromic sensorineural type 53 deafness (DFNB53). Alternative splicing results in multiple transcript variants. A related pseudogene is located nearby on chromosome 6. [provided by RefSeq, Jul 2009]
COL11A2 Gene-Disease associations (from GenCC):
  • autosomal dominant nonsyndromic hearing loss 13
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
  • nonsyndromic genetic hearing loss
    Inheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: ClinGen
  • otospondylomegaepiphyseal dysplasia, autosomal dominant
    Inheritance: 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 53
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • otospondylomegaepiphyseal dysplasia
    Inheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • otospondylomegaepiphyseal dysplasia, autosomal recessive
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • fibrochondrogenesis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.37145156).
BP6
Variant 6-33179738-G-A is Benign according to our data. Variant chr6-33179738-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 179347.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.0000582 (85/1459800) while in subpopulation SAS AF = 0.000823 (71/86258). AF 95% confidence interval is 0.000668. There are 1 homozygotes in GnomAdExome4. There are 54 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL11A2NM_080680.3 linkc.1427C>T p.Ala476Val missense_variant Exon 13 of 66 ENST00000341947.7 NP_542411.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL11A2ENST00000341947.7 linkc.1427C>T p.Ala476Val missense_variant Exon 13 of 66 5 NM_080680.3 ENSP00000339915.2
COL11A2ENST00000374708.8 linkc.1169C>T p.Ala390Val missense_variant Exon 11 of 64 5 ENSP00000363840.4
COL11A2ENST00000361917.6 linkc.53C>T p.Ala18Val missense_variant Exon 1 of 24 5 ENSP00000355123.2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000132
AC:
33
AN:
249240
AF XY:
0.000178
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000582
AC:
85
AN:
1459800
Hom.:
1
Cov.:
33
AF XY:
0.0000743
AC XY:
54
AN XY:
726376
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.000823
AC:
71
AN:
86258
European-Finnish (FIN)
AF:
0.0000195
AC:
1
AN:
51378
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000630
AC:
7
AN:
1111980
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152066
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74272
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41390
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.592
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.000140
AC:
17
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 06, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The Ala476Val variant in COL11A2 has not been reported in individuals with heari ng loss or in large population studies. Computational analyses (biochemical amin o acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide strong evidence for or against an impact to the protein. In summary, additional data is needed to determine the clinical significance of this variant. -

Inborn genetic diseases Uncertain:1
Apr 30, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1427C>T (p.A476V) alteration is located in exon 13 (coding exon 13) of the COL11A2 gene. This alteration results from a C to T substitution at nucleotide position 1427, causing the alanine (A) at amino acid position 476 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Benign:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
BayesDel_addAF
Benign
-0.040
T
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.096
T;T;.;T
Eigen
Pathogenic
0.73
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Uncertain
0.25
D
MetaRNN
Benign
0.37
T;T;T;T
MetaSVM
Uncertain
0.78
D
PhyloP100
7.9
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-3.5
D;D;D;D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0090
D;D;D;D
Sift4G
Benign
0.086
T;T;T;D
Vest4
0.42
MutPred
0.40
.;Gain of MoRF binding (P = 0.0951);.;Gain of MoRF binding (P = 0.0951);
MVP
0.90
MPC
0.83
ClinPred
0.54
D
GERP RS
4.5
PromoterAI
-0.094
Neutral
gMVP
0.30
Mutation Taster
=93/7
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs373983482; hg19: chr6-33147515; COSMIC: COSV59494064; COSMIC: COSV59494064; API