rs116108376

Variant summary

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

The NM_001853.4(COL9A3):​c.*9G>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 0.00176 in 1,558,860 control chromosomes in the GnomAD database, including 51 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0092 ( 29 hom., cov: 33)
Exomes 𝑓: 0.00095 ( 22 hom. )

Consequence

COL9A3
NM_001853.4 3_prime_UTR

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.644
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=-0.88).
BP6
Variant 20-62840741-G-A is Benign according to our data. Variant chr20-62840741-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 258401.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 = 0.00921 (1403/152316) while in subpopulation AFR AF= 0.0323 (1342/41580). AF 95% confidence interval is 0.0308. There are 29 homozygotes in gnomad4. There are 671 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 29 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL9A3NM_001853.4 linkuse as main transcriptc.*9G>A 3_prime_UTR_variant 32/32 ENST00000649368.1 NP_001844.3
COL9A3XM_047439893.1 linkuse as main transcriptc.*9G>A 3_prime_UTR_variant 31/31 XP_047295849.1
COL9A3XM_047439894.1 linkuse as main transcriptc.*9G>A 3_prime_UTR_variant 32/32 XP_047295850.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL9A3ENST00000649368.1 linkuse as main transcriptc.*9G>A 3_prime_UTR_variant 32/32 NM_001853.4 ENSP00000496793 P1
COL9A3ENST00000467819.5 linkuse as main transcriptn.575G>A non_coding_transcript_exon_variant 4/41
COL9A3ENST00000462700.5 linkuse as main transcriptn.819G>A non_coding_transcript_exon_variant 6/63
COL9A3ENST00000466192.5 linkuse as main transcriptn.1791G>A non_coding_transcript_exon_variant 8/82

Frequencies

GnomAD3 genomes
AF:
0.00917
AC:
1396
AN:
152198
Hom.:
29
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0322
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00295
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00525
GnomAD3 exomes
AF:
0.00238
AC:
388
AN:
162976
Hom.:
5
AF XY:
0.00163
AC XY:
141
AN XY:
86240
show subpopulations
Gnomad AFR exome
AF:
0.0356
Gnomad AMR exome
AF:
0.00175
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000166
Gnomad SAS exome
AF:
0.0000429
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000311
Gnomad OTH exome
AF:
0.000664
GnomAD4 exome
AF:
0.000951
AC:
1338
AN:
1406544
Hom.:
22
Cov.:
32
AF XY:
0.000795
AC XY:
552
AN XY:
694450
show subpopulations
Gnomad4 AFR exome
AF:
0.0355
Gnomad4 AMR exome
AF:
0.00166
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000137
Gnomad4 SAS exome
AF:
0.000125
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000139
Gnomad4 OTH exome
AF:
0.00175
GnomAD4 genome
AF:
0.00921
AC:
1403
AN:
152316
Hom.:
29
Cov.:
33
AF XY:
0.00901
AC XY:
671
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0323
Gnomad4 AMR
AF:
0.00294
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00520
Alfa
AF:
0.00468
Hom.:
4
Bravo
AF:
0.0101
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 03, 2022See Variant Classification Assertion Criteria. -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.14
DANN
Benign
0.72
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: rs116108376; hg19: chr20-61472093; API