6-33163559-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_080680.3(COL11A2):c.*119G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000876 in 1,525,812 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0034 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00060 ( 4 hom. )

Consequence

COL11A2
NM_080680.3 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:4

Conservation

PhyloP100: -1.37

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 -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.93).

BP6

Variant 6-33163559-C-T is Benign according to our data. Variant chr6-33163559-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 356380.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00339 (516/152204) while in subpopulation AFR AF= 0.0105 (435/41530). AF 95% confidence interval is 0.00966. There are 2 homozygotes in gnomad4. There are 251 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL11A2	NM_080680.3 link	c.*119G>A		3_prime_UTR_variant	Exon 66 of 66	ENST00000341947.7	NP_542411.2	P13942A0A0C4DFS1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL11A2	ENST00000341947 link	c.*119G>A	3_prime_UTR_variant	Exon 66 of 66	5	NM_080680.3	ENSP00000339915.2	A0A0C4DFS1
COL11A2	ENST00000374708 link	c.*119G>A	3_prime_UTR_variant	Exon 64 of 64	5		ENSP00000363840.4	Q4VXY6
COL11A2	ENST00000477772.1 link	n.1120G>A	non_coding_transcript_exon_variant	Exon 9 of 9	2
COL11A2	ENST00000683572.1 link	n.1136G>A	non_coding_transcript_exon_variant	Exon 9 of 9

Frequencies

GnomAD3 genomes

AF:

0.00338

AC:

514

AN:

152086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0105

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00249

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000456

Gnomad OTH

AF:

0.00287

GnomAD4 exome

AF:

0.000597

AC:

820

AN:

1373608

Hom.:

Cov.:

AF XY:

0.000542

AC XY:

371

AN XY:

684520

show subpopulations

Gnomad4 AFR exome

AF:

0.0114

Gnomad4 AMR exome

AF:

0.00189

Gnomad4 ASJ exome

AF:

0.00128

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000714

Gnomad4 FIN exome

AF:

0.0000772

Gnomad4 NFE exome

AF:

0.000234

Gnomad4 OTH exome

AF:

0.00136

GnomAD4 genome

AF:

0.00339

AC:

516

AN:

152204

Hom.:

Cov.:

AF XY:

0.00337

AC XY:

251

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.0105

Gnomad4 AMR

AF:

0.00248

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000456

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00270

Hom.:

Bravo

AF:

0.00395

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:4

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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: Likely 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Fibrochondrogenesis 2

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Likely 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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.93

CADD

Benign

0.033

DANN

Benign

0.51

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