6-33164916-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_080680.3(COL11A2):c.4799G>A(p.Arg1600Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0012 in 1,581,402 control chromosomes in the GnomAD database, including 44 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.00085 ( 3 hom., cov: 31)

Exomes 𝑓: 0.0012 ( 41 hom. )

Consequence

COL11A2
NM_080680.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 3.89

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.01012671).

BP6

Variant 6-33164916-C-T is Benign according to our data. Variant chr6-33164916-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 178604.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 = 0.000854 (130/152186) while in subpopulation EAS AF= 0.0193 (100/5174). AF 95% confidence interval is 0.0163. There are 3 homozygotes in gnomad4. There are 77 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL11A2	NM_080680.3 link	c.4799G>A	p.Arg1600Gln	missense_variant	Exon 64 of 66	ENST00000341947.7	NP_542411.2	P13942A0A0C4DFS1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL11A2	ENST00000341947.7 link	c.4799G>A	p.Arg1600Gln	missense_variant	Exon 64 of 66	5	NM_080680.3	ENSP00000339915.2	A0A0C4DFS1
COL11A2	ENST00000374708.8 link	c.4541G>A	p.Arg1514Gln	missense_variant	Exon 62 of 64	5		ENSP00000363840.4	Q4VXY6
COL11A2	ENST00000477772.1 link	n.589G>A		non_coding_transcript_exon_variant	Exon 7 of 9	2
COL11A2	ENST00000683572.1 link	n.605G>A		non_coding_transcript_exon_variant	Exon 7 of 9

Frequencies

GnomAD3 genomes

AF:

0.000868

AC:

132

AN:

152068

Hom.:

Cov.:

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:

0.0197

Gnomad SAS

AF:

0.00290

Gnomad FIN

AF:

0.000848

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.00216

AC:

435

AN:

201804

Hom.:

AF XY:

0.00220

AC XY:

237

AN XY:

107710

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000218

Gnomad EAS exome

AF:

0.0212

Gnomad SAS exome

AF:

0.00251

Gnomad FIN exome

AF:

0.000964

Gnomad NFE exome

AF:

0.000173

Gnomad OTH exome

AF:

0.00134

GnomAD4 exome

AF:

0.00124

AC:

1768

AN:

1429216

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

912

AN XY:

707742

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000235

Gnomad4 EAS exome

AF:

0.0354

Gnomad4 SAS exome

AF:

0.00283

Gnomad4 FIN exome

AF:

0.000923

Gnomad4 NFE exome

AF:

0.0000493

Gnomad4 OTH exome

AF:

0.00115

GnomAD4 genome

AF:

0.000854

AC:

130

AN:

152186

Hom.:

Cov.:

AF XY:

0.00104

AC XY:

AN XY:

74386

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0193

Gnomad4 SAS

AF:

0.00291

Gnomad4 FIN

AF:

0.000848

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00105

Hom.:

Bravo

AF:

0.000884

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00201

AC:

242

Asia WGS

AF:

0.0120

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Jun 26, 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. -

Jul 05, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

p.Arg1600Gln in exon 64 of COL11A2: This variant is not expected to have clinica l significance because it has been identified in 5.6% (10/178) of Japanese chrom osomes by the 1000 Genomes Project (dbSNP rs1799912). -

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 12, 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. -

Otospondylomegaepiphyseal dysplasia, autosomal dominant;C1864746:Autosomal recessive nonsyndromic hearing loss 53;C1866095:Autosomal dominant nonsyndromic hearing loss 13;C3281128:Fibrochondrogenesis 2;C5551484:Otospondylomegaepiphyseal dysplasia, autosomal recessive

Benign:1

Aug 23, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

- -

Connective tissue disorder

Benign:1

Feb 24, 2022

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Fibrochondrogenesis 2

Benign:1

Jan 12, 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

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.029

T;T;.

Eigen

Benign

-0.061

Eigen_PC

Benign

0.020

FATHMM_MKL

Benign

0.47

MetaRNN

Benign

0.010

T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.5

N;N;N

REVEL

Benign

0.15

Sift

Benign

0.038

D;D;D

Sift4G

Uncertain

0.049

D;T;T

Vest4

0.36

MVP

0.68

MPC

0.39

ClinPred

0.034

GERP RS

2.9

gMVP

0.58

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over