rs752552097

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_080680.3(COL11A2):​c.1489C>T​(p.Arg497Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000051 in 1,568,910 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. R497H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 1 hom. )

Consequence

COL11A2
NM_080680.3 missense

Scores

2
10
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 3.04

Publications

0 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 -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12869346).
BP6
Variant 6-33179445-G-A is Benign according to our data. Variant chr6-33179445-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 228528.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL11A2NM_080680.3 linkc.1489C>T p.Arg497Cys missense_variant Exon 14 of 66 ENST00000341947.7 NP_542411.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL11A2ENST00000341947.7 linkc.1489C>T p.Arg497Cys missense_variant Exon 14 of 66 5 NM_080680.3 ENSP00000339915.2
COL11A2ENST00000374708.8 linkc.1231C>T p.Arg411Cys missense_variant Exon 12 of 64 5 ENSP00000363840.4
COL11A2ENST00000361917.6 linkc.115C>T p.Arg39Cys missense_variant Exon 2 of 24 5 ENSP00000355123.2

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152104
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000515
AC:
9
AN:
174762
AF XY:
0.0000426
show subpopulations
Gnomad AFR exome
AF:
0.000102
Gnomad AMR exome
AF:
0.000113
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000559
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000494
AC:
70
AN:
1416806
Hom.:
1
Cov.:
34
AF XY:
0.0000343
AC XY:
24
AN XY:
700514
show subpopulations
African (AFR)
AF:
0.0000307
AC:
1
AN:
32608
American (AMR)
AF:
0.0000798
AC:
3
AN:
37602
Ashkenazi Jewish (ASJ)
AF:
0.0000395
AC:
1
AN:
25346
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37520
South Asian (SAS)
AF:
0.0000124
AC:
1
AN:
80592
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49480
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5714
European-Non Finnish (NFE)
AF:
0.0000551
AC:
60
AN:
1089208
Other (OTH)
AF:
0.0000681
AC:
4
AN:
58736
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.0000657
AC:
10
AN:
152104
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74300
show subpopulations
African (AFR)
AF:
0.0000966
AC:
4
AN:
41408
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
67986
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000135
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000770
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 10, 2021
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 228528; Landrum et al., 2016); 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: 26582918, 27535533) -

not specified Uncertain:1
Sep 18, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Arg497Cys variant in COL11A2 has not been previously reported in individua ls with hearing loss, but has been identified in 0.3% (2/658) Latino chromosomes and in 1/2354 African chromosomes by the Exome Aggregation Consortium (ExAC, ht tp://exac.broadinstitute.org). Although this variant has been seen in the genera l population, its frequency is not high enough to rule out a pathogenic role. Co mputational prediction tools and conservation analysis do not provide strong sup port for or against an impact to the protein. In summary, the clinical significa nce of the p.Arg497Cys variant is uncertain. -

Inborn genetic diseases Uncertain:1
Aug 02, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1489C>T (p.R497C) alteration is located in exon 14 (coding exon 14) of the COL11A2 gene. This alteration results from a C to T substitution at nucleotide position 1489, causing the arginine (R) at amino acid position 497 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

COL11A2-related disorder Uncertain:1
Apr 17, 2024
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

The COL11A2 c.1489C>T variant is predicted to result in the amino acid substitution p.Arg497Cys. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.011% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.51
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.64
D;T;.;D
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Benign
0.058
D
MetaRNN
Benign
0.13
T;T;T;T
MetaSVM
Uncertain
0.71
D
PhyloP100
3.0
PrimateAI
Uncertain
0.74
T
PROVEAN
Pathogenic
-6.9
D;D;D;D
REVEL
Benign
0.28
Sift
Uncertain
0.0060
D;D;D;D
Sift4G
Uncertain
0.035
D;D;D;D
Vest4
0.63
MVP
0.70
MPC
1.3
ClinPred
0.49
T
GERP RS
4.8
PromoterAI
0.0081
Neutral
gMVP
0.39
Mutation Taster
=61/39
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs752552097; hg19: chr6-33147222; API