Genetic Variant EPYC:p.Ser219Asn (chr12-90971846-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004950.5(EPYC):c.656G>A(p.Ser219Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000194 in 1,611,584 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S219T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000086 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

EPYC
NM_004950.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.47

Variant links:

Genes affected

EPYC (HGNC:3053): (epiphycan) Dermatan sulfate proteoglycan 3 is a member of the small leucine-rich repeat proteoglycan family. This gene is composed of seven exons. It regulates fibrillogenesis by interacting with collagen fibrils and other extracellular matrix proteins. [provided by RefSeq, Jul 2008]

EPYC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14195028).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPYC	NM_004950.5 link	c.656G>A	p.Ser219Asn	missense_variant	Exon 5 of 7	ENST00000261172.8	NP_004941.2	Q99645A0A024RBC3
EPYC	XM_011538008.2 link	c.473G>A	p.Ser158Asn	missense_variant	Exon 4 of 6		XP_011536310.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPYC	ENST00000261172.8 link	c.656G>A	p.Ser219Asn	missense_variant	Exon 5 of 7	1	NM_004950.5	ENSP00000261172.3		Q99645
EPYC	ENST00000551767.1 link	c.656G>A	p.Ser219Asn	missense_variant	Exon 5 of 5	3		ENSP00000448272.1		F8VSI4

Frequencies

GnomAD3 genomes

AF:

0.0000856

AC:

AN:

151946

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000680

AC:

AN:

249978

Hom.:

AF XY:

0.0000888

AC XY:

AN XY:

135182

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:

0.000150

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000206

AC:

300

AN:

1459638

Hom.:

Cov.:

AF XY:

0.000208

AC XY:

151

AN XY:

726132

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.000251

Gnomad4 OTH exome

AF:

0.000332

GnomAD4 genome

AF:

0.0000856

AC:

AN:

151946

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74206

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000102

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 07, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.656G>A (p.S219N) alteration is located in exon 5 (coding exon 4) of the EPYC gene. This alteration results from a G to A substitution at nucleotide position 656, causing the serine (S) at amino acid position 219 to be replaced by an asparagine (N). 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

Pathogenic

0.91

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.54

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.023

T;T

Eigen

Benign

0.019

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.76

T;T

M_CAP

Benign

0.035

MetaRNN

Benign

0.14

T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.4

L;.

PrimateAI

Uncertain

0.63

PROVEAN

Benign

0.67

N;N

REVEL

Benign

0.17

Sift

Benign

0.65

T;T

Sift4G

Benign

0.48

T;T

Polyphen

0.21

B;.

Vest4

0.45

MVP

0.53

MPC

0.047

ClinPred

0.23

GERP RS

6.0

Varity_R

0.22

gMVP

0.77

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