chr6-33166501-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_080680.3(COL11A2):c.4392+12C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00207 in 1,613,058 control chromosomes in the GnomAD database, including 238 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0030 ( 23 hom., cov: 31)

Exomes 𝑓: 0.0020 ( 215 hom. )

Consequence

COL11A2
NM_080680.3 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -0.532

Publications

2 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

COL11A2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 6-33166501-G-A is Benign according to our data. Variant chr6-33166501-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 226538.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00297 (452/152164) while in subpopulation EAS AF = 0.0537 (277/5160). AF 95% confidence interval is 0.0485. There are 23 homozygotes in GnomAd4. There are 255 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 23 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL11A2	NM_080680.3 link	c.4392+12C>T		intron_variant	Intron 60 of 65	ENST00000341947.7	NP_542411.2	P13942A0A0C4DFS1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL11A2	ENST00000341947.7 link	c.4392+12C>T	intron_variant	Intron 60 of 65	5	NM_080680.3	ENSP00000339915.2	A0A0C4DFS1
COL11A2	ENST00000374708.8 link	c.4134+12C>T	intron_variant	Intron 58 of 63	5		ENSP00000363840.4	Q4VXY6
COL11A2	ENST00000477772.1 link	n.273-685C>T	intron_variant	Intron 5 of 8	2
COL11A2	ENST00000683572.1 link	n.234+290C>T	intron_variant	Intron 4 of 8

Frequencies

GnomAD3 genomes

AF:

0.00300

AC:

456

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000918

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0541

Gnomad SAS

AF:

0.0226

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00526

GnomAD2 exomes

AF:

0.00539

AC:

1346

AN:

249600

AF XY:

0.00532

show subpopulations

Gnomad AFR exome

AF:

0.000802

Gnomad AMR exome

AF:

0.000638

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0538

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000267

Gnomad OTH exome

AF:

0.00624

GnomAD4 exome

AF:

0.00197

AC:

2883

AN:

1460894

Hom.:

215

Cov.:

AF XY:

0.00204

AC XY:

1483

AN XY:

726772

show subpopulations

African (AFR)

AF:

0.000388

AC:

AN:

33474

American (AMR)

AF:

0.000537

AC:

AN:

44676

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25958

East Asian (EAS)

AF:

0.0282

AC:

1118

AN:

39696

South Asian (SAS)

AF:

0.00965

AC:

832

AN:

86222

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53312

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.0000189

AC:

AN:

1111446

Other (OTH)

AF:

0.0144

AC:

872

AN:

60352

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

147

294

441

588

735

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

112

168

224

280

<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:

0.00297

AC:

452

AN:

152164

Hom.:

Cov.:

AF XY:

0.00343

AC XY:

255

AN XY:

74392

show subpopulations

African (AFR)

AF:

0.000916

AC:

AN:

41498

American (AMR)

AF:

0.00105

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.0537

AC:

277

AN:

5160

South Asian (SAS)

AF:

0.0224

AC:

108

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67982

Other (OTH)

AF:

0.00521

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

107

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.000914

Hom.:

Bravo

AF:

0.00282

Asia WGS

AF:

0.0520

AC:

182

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 03, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:2

Aug 12, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

c.4392+12C>T in Intron 60 of COL11A2: This variant is not expected to have clini cal significance because it is not located within the conserved splice consensus sequence and has been identified in 4.9% (417/8580) of East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs117267045). -

Jun 15, 2017

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Otospondylomegaepiphyseal dysplasia, autosomal dominant

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Otospondylomegaepiphyseal dysplasia, autosomal recessive

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Stickler Syndrome, Dominant

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Fibrochondrogenesis 2

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.51

(source)

DANN

Benign

0.34

PhyloP100

-0.53

Mutation Taster

=100/0

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over