Genetic Variant VCAN:c.-89A>C (chr5-83483574-A-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The ENST00000512590(VCAN):c.-89A>C variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000011 in 1,461,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

VCAN
ENST00000512590 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.72

Variant links:

Genes affected

VCAN (HGNC:2464): (versican) This gene is a member of the aggrecan/versican proteoglycan family. The protein encoded is a large chondroitin sulfate proteoglycan and is a major component of the extracellular matrix. This protein is involved in cell adhesion, proliferation, proliferation, migration and angiogenesis and plays a central role in tissue morphogenesis and maintenance. Mutations in this gene are the cause of Wagner syndrome type 1. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2009]

VCAN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.42152026).

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VCAN	NM_004385.5 link	c.56A>C	p.His19Pro	missense_variant	Exon 2 of 15	ENST00000265077.8	NP_004376.2	P13611-1A0A024RAQ9Q59FG9
VCAN	NM_001164097.2 link	c.56A>C	p.His19Pro	missense_variant	Exon 2 of 14		NP_001157569.1	P13611-2A0A024RAL1Q6MZK8
VCAN	NM_001164098.2 link	c.56A>C	p.His19Pro	missense_variant	Exon 2 of 14		NP_001157570.1	P13611-3A0A024RAP3
VCAN	NM_001126336.3 link	c.56A>C	p.His19Pro	missense_variant	Exon 2 of 13		NP_001119808.1	P13611-4Q86W61

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VCAN	ENST00000265077.8 link	c.56A>C	p.His19Pro	missense_variant	Exon 2 of 15	1	NM_004385.5	ENSP00000265077.3		P13611-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251178

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1461076

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

726864

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jan 26, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.56A>C (p.H19P) alteration is located in exon 2 (coding exon 1) of the VCAN gene. This alteration results from a A to C substitution at nucleotide position 56, causing the histidine (H) at amino acid position 19 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Uncertain

0.53

D;.;.;.;T;.

Eigen

Benign

-0.11

Eigen_PC

Benign

-0.095

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.79

T;T;T;T;T;T

M_CAP

Uncertain

0.27

MetaRNN

Benign

0.42

T;T;T;T;T;T

MetaSVM

Uncertain

-0.086

MutationAssessor

Uncertain

2.3

M;M;M;.;.;M

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-3.4

D;D;D;D;D;N

REVEL

Uncertain

0.31

Sift

Uncertain

0.0010

D;D;D;D;T;T

Sift4G

Uncertain

0.027

D;D;D;D;T;T

Polyphen

0.98

D;D;D;.;B;B

Vest4

0.60

MutPred

0.50

Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);

MVP

0.74

MPC

0.35

ClinPred

0.93

GERP RS

4.3

Varity_R

0.33

gMVP

0.46

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