rs2351491

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_001369268.1(ACAN):​c.2289C>T​(p.Pro763=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.588 in 1,494,474 control chromosomes in the GnomAD database, including 270,953 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.48 ( 20173 hom., cov: 33)
Exomes 𝑓: 0.60 ( 250780 hom. )

Consequence

ACAN
NM_001369268.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.817
Variant links:
Genes affected
ACAN (HGNC:319): (aggrecan) This gene is a member of the aggrecan/versican proteoglycan family. The encoded protein is an integral part of the extracellular matrix in cartilagenous tissue and it withstands compression in cartilage. Mutations in this gene may be involved in skeletal dysplasia and spinal degeneration. Multiple alternatively spliced transcript variants that encode different protein isoforms have been observed in this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 15-88854874-C-T is Benign according to our data. Variant chr15-88854874-C-T is described in ClinVar as [Benign]. Clinvar id is 1181962.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-88854874-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.817 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.638 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACANNM_001369268.1 linkuse as main transcriptc.2289C>T p.Pro763= synonymous_variant 12/19 ENST00000560601.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACANENST00000560601.4 linkuse as main transcriptc.2289C>T p.Pro763= synonymous_variant 12/193 NM_001369268.1 P1

Frequencies

GnomAD3 genomes
AF:
0.483
AC:
73335
AN:
151986
Hom.:
20175
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.239
Gnomad AMI
AF:
0.659
Gnomad AMR
AF:
0.429
Gnomad ASJ
AF:
0.596
Gnomad EAS
AF:
0.193
Gnomad SAS
AF:
0.402
Gnomad FIN
AF:
0.596
Gnomad MID
AF:
0.554
Gnomad NFE
AF:
0.643
Gnomad OTH
AF:
0.519
GnomAD3 exomes
AF:
0.504
AC:
80915
AN:
160402
Hom.:
22906
AF XY:
0.519
AC XY:
44677
AN XY:
86082
show subpopulations
Gnomad AFR exome
AF:
0.219
Gnomad AMR exome
AF:
0.313
Gnomad ASJ exome
AF:
0.614
Gnomad EAS exome
AF:
0.179
Gnomad SAS exome
AF:
0.400
Gnomad FIN exome
AF:
0.591
Gnomad NFE exome
AF:
0.640
Gnomad OTH exome
AF:
0.546
GnomAD4 exome
AF:
0.600
AC:
805043
AN:
1342370
Hom.:
250780
Cov.:
53
AF XY:
0.597
AC XY:
392611
AN XY:
657470
show subpopulations
Gnomad4 AFR exome
AF:
0.224
Gnomad4 AMR exome
AF:
0.333
Gnomad4 ASJ exome
AF:
0.603
Gnomad4 EAS exome
AF:
0.192
Gnomad4 SAS exome
AF:
0.405
Gnomad4 FIN exome
AF:
0.587
Gnomad4 NFE exome
AF:
0.646
Gnomad4 OTH exome
AF:
0.557
GnomAD4 genome
AF:
0.482
AC:
73330
AN:
152104
Hom.:
20173
Cov.:
33
AF XY:
0.475
AC XY:
35305
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.238
Gnomad4 AMR
AF:
0.428
Gnomad4 ASJ
AF:
0.596
Gnomad4 EAS
AF:
0.194
Gnomad4 SAS
AF:
0.402
Gnomad4 FIN
AF:
0.596
Gnomad4 NFE
AF:
0.643
Gnomad4 OTH
AF:
0.519
Alfa
AF:
0.598
Hom.:
43683
Bravo
AF:
0.457
Asia WGS
AF:
0.333
AC:
1158
AN:
3478

ClinVar

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

Submissions by phenotype

Spondyloepimetaphyseal dysplasia, aggrecan type Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 05, 2018- -
Osteochondritis dissecans Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Spondyloepiphyseal dysplasia, Kimberley type Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
9.5
DANN
Benign
0.44

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: rs2351491; hg19: chr15-89398105; COSMIC: COSV61359613; COSMIC: COSV61359613; API