rs35116188

Variant names:

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_080680.3(COL11A2):c.706C>T(p.Pro236Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000841 in 1,613,940 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P236P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00089 ( 2 hom. )

Consequence

COL11A2
NM_080680.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:2

Conservation

PhyloP100: 2.41

Publications

3 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:

ENSG00000305994 (HGNC:):

ENSG00000305994 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.084487736).

BP6

Variant 6-33186719-G-A is Benign according to our data. Variant chr6-33186719-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 388231.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000408 (62/152050) while in subpopulation NFE AF = 0.000809 (55/68006). AF 95% confidence interval is 0.000638. There are 0 homozygotes in GnomAd4. There are 31 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL11A2	NM_080680.3 link	c.706C>T	p.Pro236Ser	missense_variant	Exon 5 of 66	ENST00000341947.7	NP_542411.2	P13942A0A0C4DFS1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COL11A2	ENST00000341947.7 link	c.706C>T	p.Pro236Ser	missense_variant	Exon 5 of 66	5	NM_080680.3	ENSP00000339915.2		A0A0C4DFS1

Frequencies

GnomAD3 genomes

AF:

0.000408

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000809

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000342

AC:

AN:

251494

AF XY:

0.000316

show subpopulations

Gnomad AFR exome

AF:

0.000123

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:

0.000730

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000886

AC:

1295

AN:

1461890

Hom.:

Cov.:

AF XY:

0.000861

AC XY:

626

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.000388

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00113

AC:

1257

AN:

1112010

Other (OTH)

AF:

0.000397

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

162

243

324

405

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

116

174

232

290

<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:

0.000408

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

AN XY:

74266

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41360

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000809

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.000652

Hom.:

Bravo

AF:

0.000400

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00116

AC:

ExAC

AF:

0.000321

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.000652

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:4Benign:1

Mar 02, 2018

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 07, 2024

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 -

Nov 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 25, 2017

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.Pro236Ser variant (rs35116188) has not been reported in the medical literature nor has it been previously identified in our laboratory. The p.Pro236Ser variant is listed in the Genome Aggregation Database (gnomAD) browser with an allele frequency of 0.074% in the non-Finnish European population (identified in 94 out of 126,692 chromosomes), and is classified as a variant of uncertain significance in ClinVar (Variant ID: 388231). The proline at codon 236 is highly conserved considering 11 species up to giant panda (Alamut software v2.9), but computational analyses predict conflicting effects of this variant on protein structure/function (SIFT: tolerated, PolyPhen2: benign, MutationTaster: disease causing). Based on the available information, the clinical significance of the p.Pro236Ser variant cannot be determined with certainty. -

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1

Apr 25, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.Pro236Ser variant in COL11A2 has not been previously reported in individua ls with hearing loss, but has been identified in 0.1% (38/66740) of European chr omosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.o rg; dbSNP rs35116188). Although this variant has been seen in the general popula tion, its frequency is not high enough to rule out a pathogenic role. Proline (P ro) at position 236 is not conserved in mammals or evolutionarily distant specie s and one mammal (Bushbaby) carries a Serine (Ser), raising the possibility that this change may be tolerated. Additional computational prediction tools do not provide strong support for or against an impact to the protein. In summary, th e clinical significance of the p.Pro236Ser variant is uncertain. -

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

0.074

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.15

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.023

T;T;.;T;.

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.50

FATHMM_MKL

Uncertain

0.81

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.084

T;T;T;T;T

MetaSVM

Benign

-0.31

MutationAssessor

Benign

0.81

.;.;.;.;L

PhyloP100

2.4

PrimateAI

Benign

0.38

PROVEAN

Benign

-2.3

N;D;N;D;D

REVEL

Benign

0.22

Sift

Benign

0.23

T;T;T;D;D

Sift4G

Benign

0.29

T;T;T;T;D

Vest4

0.17

MVP

0.80

MPC

0.67

ClinPred

0.13

GERP RS

3.3

gMVP

0.26

Mutation Taster

=85/15

polymorphism

(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