rs115466848

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_001853.4(COL9A3):c.792+19G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00202 in 1,612,204 control chromosomes in the GnomAD database, including 66 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 43 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 23 hom. )

Consequence

COL9A3
NM_001853.4 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.356

Publications

2 publications found

Variant links:

Genes affected

COL9A3 (HGNC:2219): (collagen type IX alpha 3 chain) This gene encodes one of the three alpha chains of type IX collagen, the major collagen component of hyaline cartilage. Type IX collagen, a heterotrimeric molecule, is usually found in tissues containing type II collagen, a fibrillar collagen. Mutations in this gene are associated with multiple epiphyseal dysplasia type 3. [provided by RefSeq, Jan 2010]

COL9A3 Gene-Disease associations (from GenCC):

epiphyseal dysplasia, multiple, 3
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
Stickler syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: ClinGen, Ambry Genetics, Genomics England PanelApp
Stickler syndrome, type 6
Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
multiple epiphyseal dysplasia due to collagen 9 anomaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive Stickler syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

COL9A3 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 20-62826839-G-A is Benign according to our data. Variant chr20-62826839-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 258433.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0111 (1697/152246) while in subpopulation AFR AF = 0.0377 (1566/41530). AF 95% confidence interval is 0.0362. There are 43 homozygotes in GnomAd4. There are 805 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 43 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001853.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL9A3	NM_001853.4	MANE Select	c.792+19G>A		intron	N/A	NP_001844.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
COL9A3	ENST00000649368.1	MANE Select	c.792+19G>A	intron	N/A	ENSP00000496793.1	Q14050
COL9A3	ENST00000934236.1		c.843+19G>A	intron	N/A	ENSP00000604295.1
COL9A3	ENST00000894732.1		c.720+19G>A	intron	N/A	ENSP00000564791.1

Frequencies

GnomAD3 genomes

AF:

0.0111

AC:

1689

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0376

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00648

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00861

GnomAD2 exomes

AF:

0.00293

AC:

724

AN:

247252

AF XY:

0.00222

show subpopulations

Gnomad AFR exome

AF:

0.0380

Gnomad AMR exome

AF:

0.00232

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS exome

AF:

0.00115

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000718

Gnomad OTH exome

AF:

0.00149

GnomAD4 exome

AF:

0.00106

AC:

1553

AN:

1459958

Hom.:

Cov.:

AF XY:

0.000889

AC XY:

646

AN XY:

726296

show subpopulations

African (AFR)

AF:

0.0351

AC:

1176

AN:

33470

American (AMR)

AF:

0.00275

AC:

123

AN:

44694

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26124

East Asian (EAS)

AF:

0.000680

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86214

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51862

Middle Eastern (MID)

AF:

0.00191

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000648

AC:

AN:

1111796

Other (OTH)

AF:

0.00227

AC:

137

AN:

60338

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

179

268

358

447

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

114

152

190

<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:

0.0111

AC:

1697

AN:

152246

Hom.:

Cov.:

AF XY:

0.0108

AC XY:

805

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0377

AC:

1566

AN:

41530

American (AMR)

AF:

0.00647

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000191

AC:

AN:

67990

Other (OTH)

AF:

0.00852

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

181

272

362

453

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00476

Hom.:

Bravo

AF:

0.0131

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Intervertebral disc disorder;C1832998:Epiphyseal dysplasia, multiple, 3 (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

6.0

(source)

DANN

Benign

0.35

PhyloP100

0.36

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over