rs534570825

Positions:

chr6-33169456-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2BP4BP6

The NM_080680.3(COL11A2):c.3725C>T(p.Ser1242Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000936 in 1,612,882 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).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000086 ( 1 hom. )

Consequence

COL11A2
NM_080680.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:3

Conservation

PhyloP100: 9.28

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 Likely_benign. Variant got -1 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), COL11A2. . Gene score misZ 2.3685 (greater than the threshold 3.09). Trascript score misZ 3.3886 (greater than threshold 3.09). GenCC has associacion of gene with otospondylomegaepiphyseal dysplasia, autosomal dominant nonsyndromic hearing loss 13, autosomal dominant nonsyndromic hearing loss, autosomal recessive nonsyndromic hearing loss 53, otospondylomegaepiphyseal dysplasia, autosomal dominant, nonsyndromic genetic hearing loss, fibrochondrogenesis, hearing loss, autosomal recessive, otospondylomegaepiphyseal dysplasia, autosomal recessive.

BP4

Computational evidence support a benign effect (MetaRNN=0.33568656).

BP6

Variant 6-33169456-G-A is Benign according to our data. Variant chr6-33169456-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 356389.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=6}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
COL11A2	NM_080680.3 linkuse as main transcript	c.3725C>T	p.Ser1242Leu	missense_variant	51/66	ENST00000341947.7	NP_542411.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
COL11A2	ENST00000341947.7 linkuse as main transcript	c.3725C>T	p.Ser1242Leu	missense_variant	51/66	5	NM_080680.3	ENSP00000339915	P4
COL11A2	ENST00000374708.8 linkuse as main transcript	c.3467C>T	p.Ser1156Leu	missense_variant	49/64	5		ENSP00000363840	A1
COL11A2	ENST00000477772.1 linkuse as main transcript	n.273-3640C>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000221

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000134

AC:

AN:

246426

Hom.:

AF XY:

0.000141

AC XY:

AN XY:

134338

show subpopulations

Gnomad AFR exome

AF:

0.000265

Gnomad AMR exome

AF:

0.0000870

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000438

Gnomad SAS exome

AF:

0.000263

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000904

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000856

AC:

125

AN:

1460668

Hom.:

Cov.:

AF XY:

0.0000895

AC XY:

AN XY:

726662

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000353

Gnomad4 SAS exome

AF:

0.000290

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000612

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000171

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74430

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000221

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000160

Hom.:

Bravo

AF:

0.000151

ExAC

AF:

0.000143

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Oct 26, 2017	The p.Ser1242Leu variant in COL11A2 has been previously reported by our laborato ry in one individual with hearing loss due to an alternate etiology. It has also been reported in ClinVar (Variation ID#356389) as likely benign in individuals of unknown clinical status. This variant has been identified in 34/271854 total chromosomes across several populations by the Genome Aggregation Database (gnomA D, http://gnomad.broadinstitute.org; dbSNP rs534570825). Although this variant h as been seen in the general population, its frequency is not high enough to rule out a pathogenic role. Computational prediction tools and conservation analysis do not provide strong support for or against an impact to the protein. In summa ry, the clinical significance of the p.Ser1242Leu variant is uncertain. ACMG/AMP Criteria applied: BP5, PM2_P (Richards 2015). -
Uncertain significance, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Sep 17, 2024	Variant summary: COL11A2 c.3725C>T (p.Ser1242Leu) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 9.4e-05 in 1612882 control chromosomes, predominantly at a frequency of 0.00036 within the East Asian subpopulation in the gnomAD database, including 1 homozygote. c.3725C>T has been reported in the literature in at least an individual affected with hearing loss (example: Ma_2023). This report does not provide unequivocal conclusions about association of the variant with COL11A2-Related Disorders. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 36597107). ClinVar contains an entry for this variant (Variation ID: 356389). Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Feb 29, 2024	Reported in a patient with hearing loss in published literature (PMID: 36597107); 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: 36597107) -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 27, 2024	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 22, 2021

The c.3725C>T (p.S1242L) alteration is located in exon 51 (coding exon 51) of the COL11A2 gene. This alteration results from a C to T substitution at nucleotide position 3725, causing the serine (S) at amino acid position 1242 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Otospondylomegaepiphyseal dysplasia, autosomal recessive

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Fibrochondrogenesis 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Otospondylomegaepiphyseal dysplasia, autosomal dominant

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Stickler Syndrome, Dominant

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.048

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.063

T;T;.

Eigen

Benign

-0.018

Eigen_PC

Benign

0.12

FATHMM_MKL

Pathogenic

1.0

M_CAP

Pathogenic

0.38

MetaRNN

Benign

0.34

T;T;T

MetaSVM

Uncertain

0.30

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-3.0

D;D;D

REVEL

Uncertain

0.47

Sift

Benign

0.089

T;T;T

Sift4G

Benign

0.19

T;T;T

Vest4

0.24

MVP

0.75

MPC

0.30

ClinPred

0.072

GERP RS

4.7

gMVP

0.26

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