rs147328015

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_080680.3(COL11A2):​c.1817C>T​(p.Ser606Leu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000031 in 1,612,512 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. 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. S606W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

COL11A2
NM_080680.3 missense, splice_region

Scores

2
6
9
Splicing: ADA: 0.8735
2

Clinical Significance

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

Conservation

PhyloP100: 4.90

Publications

1 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 -1 ACMG points.

BP6
Variant 6-33178309-G-A is Benign according to our data. Variant chr6-33178309-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 547217.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL11A2NM_080680.3 linkc.1817C>T p.Ser606Leu missense_variant, splice_region_variant Exon 20 of 66 ENST00000341947.7 NP_542411.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL11A2ENST00000341947.7 linkc.1817C>T p.Ser606Leu missense_variant, splice_region_variant Exon 20 of 66 5 NM_080680.3 ENSP00000339915.2
COL11A2ENST00000374708.8 linkc.1559C>T p.Ser520Leu missense_variant, splice_region_variant Exon 18 of 64 5 ENSP00000363840.4
COL11A2ENST00000361917.6 linkc.443C>T p.Ser148Leu missense_variant, splice_region_variant Exon 8 of 24 5 ENSP00000355123.2

Frequencies

GnomAD3 genomes
AF:
0.0000528
AC:
8
AN:
151614
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000365
AC:
9
AN:
246588
AF XY:
0.0000223
show subpopulations
Gnomad AFR exome
AF:
0.000199
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000452
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000288
AC:
42
AN:
1460780
Hom.:
0
Cov.:
35
AF XY:
0.0000358
AC XY:
26
AN XY:
726706
show subpopulations
African (AFR)
AF:
0.000269
AC:
9
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52344
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000261
AC:
29
AN:
1111990
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.0000527
AC:
8
AN:
151732
Hom.:
0
Cov.:
31
AF XY:
0.0000405
AC XY:
3
AN XY:
74152
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41316
American (AMR)
AF:
0.00
AC:
0
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5138
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000442
AC:
3
AN:
67868
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000434
Hom.:
0
Bravo
AF:
0.0000491
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000185
AC:
1
ExAC
AF:
0.0000254
AC:
3
EpiCase
AF:
0.000109
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 provided Uncertain:2
Jan 03, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 27535533) -

Jan 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 606 of the COL11A2 protein (p.Ser606Leu). This variant is present in population databases (rs147328015, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with COL11A2-related conditions. ClinVar contains an entry for this variant (Variation ID: 547217). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Connective tissue disorder Benign:1
Nov 01, 2016
Center for Human Genetics, Inc, Center for Human Genetics, Inc
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
Benign
0.12
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.11
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.025
T;T;.;T
Eigen
Benign
0.041
Eigen_PC
Benign
0.13
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Pathogenic
0.39
D
MetaRNN
Uncertain
0.46
T;T;T;T
MetaSVM
Uncertain
0.019
D
PhyloP100
4.9
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.5
N;D;D;N
REVEL
Uncertain
0.36
Sift
Benign
0.39
T;T;T;D
Sift4G
Benign
0.47
T;T;T;T
Vest4
0.46
MVP
0.79
MPC
0.90
ClinPred
0.13
T
GERP RS
3.9
gMVP
0.29
Mutation Taster
=70/30
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.87
dbscSNV1_RF
Benign
0.59
SpliceAI score (max)
0.0
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: rs147328015; hg19: chr6-33146086; API