Genetic Variant SNED1:p.Ala274Val (chr2-241036805-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_001080437.3(SNED1):c.821C>T(p.Ala274Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000316 in 1,609,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

SNED1
NM_001080437.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.15

Variant links:

Genes affected

SNED1 (HGNC:24696): (sushi, nidogen and EGF like domains 1) Predicted to enable Notch binding activity. Predicted to be involved in cell-matrix adhesion. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

SNED1 links:

SNED1-AS1 (HGNC:41060): (SNED1 antisense RNA 1)

SNED1-AS1 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=0.11651981).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SNED1	NM_001080437.3 link	c.821C>T	p.Ala274Val	missense_variant	Exon 5 of 32	ENST00000310397.13	NP_001073906.1	Q8TER0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SNED1	ENST00000310397.13 link	c.821C>T	p.Ala274Val	missense_variant	Exon 5 of 32	5	NM_001080437.3	ENSP00000308893.8		Q8TER0-1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000382

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000187

AC:

AN:

241230

Hom.:

AF XY:

0.000167

AC XY:

AN XY:

131842

show subpopulations

Gnomad AFR exome

AF:

0.0000643

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:

0.0000533

Gnomad NFE exome

AF:

0.000388

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.000330

AC:

481

AN:

1456960

Hom.:

Cov.:

AF XY:

0.000320

AC XY:

232

AN XY:

724986

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000122

Gnomad4 NFE exome

AF:

0.000403

Gnomad4 OTH exome

AF:

0.000381

GnomAD4 genome

AF:

0.000184

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.000382

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000311

Hom.:

Bravo

AF:

0.000185

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000140

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000652

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 24, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.821C>T (p.A274V) alteration is located in exon 5 (coding exon 5) of the SNED1 gene. This alteration results from a C to T substitution at nucleotide position 821, causing the alanine (A) at amino acid position 274 to be replaced by a valine (V). 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

0.11

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

.;.;T

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.44

LIST_S2

Benign

0.73

T;T;T

M_CAP

Pathogenic

0.30

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.43

MutationAssessor

Benign

1.3

L;L;L

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.71

N;N;N

REVEL

Benign

0.22

Sift

Benign

0.29

T;T;T

Sift4G

Benign

0.093

T;T;T

Polyphen

0.0080

.;.;B

Vest4

0.18

MVP

0.51

MPC

0.40

ClinPred

0.026

GERP RS

2.2

Varity_R

0.036

gMVP

0.58

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