rs142066316

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_001853.4(COL9A3):c.1427C>G(p.Pro476Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00407 in 1,613,544 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 3 hom., cov: 34)

Exomes 𝑓: 0.0042 ( 18 hom. )

Consequence

COL9A3
NM_001853.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 3.81

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 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=0.013701469).

BP6

Variant 20-62836212-C-G is Benign according to our data. Variant chr20-62836212-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 258409.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-62836212-C-G is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0029 (442/152352) while in subpopulation NFE AF= 0.00456 (310/68036). AF 95% confidence interval is 0.00414. There are 3 homozygotes in gnomad4. There are 193 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL9A3	NM_001853.4 link	c.1427C>G	p.Pro476Arg	missense_variant	Exon 28 of 32	ENST00000649368.1	NP_001844.3	Q14050

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COL9A3	ENST00000649368.1 link	c.1427C>G	p.Pro476Arg	missense_variant	Exon 28 of 32		NM_001853.4	ENSP00000496793.1		Q14050

Frequencies

GnomAD3 genomes

AF:

0.00290

AC:

442

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000868

Gnomad AMI

AF:

0.0526

Gnomad AMR

AF:

0.00262

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00456

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.00208

AC:

519

AN:

248964

Hom.:

AF XY:

0.00209

AC XY:

283

AN XY:

135256

show subpopulations

Gnomad AFR exome

AF:

0.000578

Gnomad AMR exome

AF:

0.00127

Gnomad ASJ exome

AF:

0.000600

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.00394

Gnomad OTH exome

AF:

0.00231

GnomAD4 exome

AF:

0.00420

AC:

6130

AN:

1461192

Hom.:

Cov.:

AF XY:

0.00403

AC XY:

2927

AN XY:

726924

show subpopulations

Gnomad4 AFR exome

AF:

0.000687

Gnomad4 AMR exome

AF:

0.00139

Gnomad4 ASJ exome

AF:

0.000651

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000945

Gnomad4 NFE exome

AF:

0.00521

Gnomad4 OTH exome

AF:

0.00371

GnomAD4 genome

AF:

0.00290

AC:

442

AN:

152352

Hom.:

Cov.:

AF XY:

0.00259

AC XY:

193

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.000866

Gnomad4 AMR

AF:

0.00261

Gnomad4 ASJ

AF:

0.00115

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00456

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00380

Hom.:

Bravo

AF:

0.00314

TwinsUK

AF:

0.00647

AC:

ALSPAC

AF:

0.00701

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00431

AC:

ExAC

AF:

0.00177

AC:

215

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00382

EpiControl

AF:

0.00403

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Nov 05, 2020

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 30467950) -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

COL9A3: BS2 -

Jun 07, 2019

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 09, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 26, 2017

Eurofins Ntd Llc (ga)

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Connective tissue disorder

Benign:1

Mar 07, 2021

Genome Diagnostics Laboratory, The Hospital for Sick Children

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

0.13

BayesDel_addAF

Benign

-0.032

BayesDel_noAF

Pathogenic

0.19

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.38

T;T

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.93

.;D

M_CAP

Pathogenic

0.42

MetaRNN

Benign

0.014

T;T

MetaSVM

Uncertain

0.74

MutationAssessor

Benign

1.4

L;L

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.8

.;N

REVEL

Pathogenic

0.65

Sift

Uncertain

0.021

.;D

Sift4G

Benign

0.33

.;T

Polyphen

1.0

D;D

Vest4

0.59

MVP

0.96

MPC

0.43

ClinPred

0.017

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.25

gMVP

0.62

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