rs115466848

Variant summary

Our verdict is Benign. Variant got -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

2

Clinical Significance

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

Conservation

PhyloP100: 0.356
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]

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 (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 [Likely_benign]. Clinvar id 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 male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 43 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL9A3NM_001853.4 linkuse as main transcriptc.792+19G>A intron_variant ENST00000649368.1 NP_001844.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL9A3ENST00000649368.1 linkuse as main transcriptc.792+19G>A intron_variant NM_001853.4 ENSP00000496793 P1
COL9A3ENST00000463487.2 linkuse as main transcriptn.500+19G>A intron_variant, non_coding_transcript_variant 5
COL9A3ENST00000489045.5 linkuse as main transcript downstream_gene_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0111
AC:
1689
AN:
152128
Hom.:
43
Cov.:
33
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
GnomAD3 exomes
AF:
0.00293
AC:
724
AN:
247252
Hom.:
18
AF XY:
0.00222
AC XY:
299
AN XY:
134450
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 SAS exome
AF:
0.0000655
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.:
23
Cov.:
32
AF XY:
0.000889
AC XY:
646
AN XY:
726296
show subpopulations
Gnomad4 AFR exome
AF:
0.0351
Gnomad4 AMR exome
AF:
0.00275
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.000680
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000648
Gnomad4 OTH exome
AF:
0.00227
GnomAD4 genome
AF:
0.0111
AC:
1697
AN:
152246
Hom.:
43
Cov.:
33
AF XY:
0.0108
AC XY:
805
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0377
Gnomad4 AMR
AF:
0.00647
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00852
Alfa
AF:
0.00468
Hom.:
1
Bravo
AF:
0.0131
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Intervertebral disc disorder;C1832998:Epiphyseal dysplasia, multiple, 3 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 11, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
6.0
DANN
Benign
0.35
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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.

Other links and lift over

dbSNP: rs115466848; hg19: chr20-61458191; API