Genetic Variant SNED1:p.Ala152Gly (chr2-241030525-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001080437.3(SNED1):c.455C>G(p.Ala152Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,766 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SNED1
NM_001080437.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.83

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SNED1	NM_001080437.3 link	c.455C>G	p.Ala152Gly	missense_variant	Exon 2 of 32	ENST00000310397.13	NP_001073906.1	Q8TER0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SNED1	ENST00000310397.13 link	c.455C>G	p.Ala152Gly	missense_variant	Exon 2 of 32	5	NM_001080437.3	ENSP00000308893.8	Q8TER0-1
SNED1	ENST00000405547.7 link	c.455C>G	p.Ala152Gly	missense_variant	Exon 2 of 30	5		ENSP00000386007.3	Q8TER0-3
SNED1	ENST00000401884.5 link	c.455C>G	p.Ala152Gly	missense_variant	Exon 2 of 27	5		ENSP00000384871.1	Q8TER0-5
SNED1-AS1	ENST00000458377.1 link	n.140+2976G>C		intron_variant	Intron 2 of 2	4

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

248396

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134954

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000167

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461550

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727038

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000385

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.455C>G (p.A152G) alteration is located in exon 2 (coding exon 2) of the SNED1 gene. This alteration results from a C to G substitution at nucleotide position 455, causing the alanine (A) at amino acid position 152 to be replaced by a glycine (G). 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

Uncertain

0.36

BayesDel_addAF

Uncertain

0.017

BayesDel_noAF

Uncertain

0.050

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.058

.;.;T

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

D;D;D

M_CAP

Uncertain

0.18

MetaRNN

Uncertain

0.69

D;D;D

MetaSVM

Uncertain

0.67

MutationAssessor

Pathogenic

3.0

M;M;M

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-0.62

N;N;N

REVEL

Uncertain

0.63

Sift

Uncertain

0.0040

D;D;D

Sift4G

Uncertain

0.0030

D;D;D

Polyphen

0.99

.;.;D

Vest4

0.66

MutPred

0.49

Loss of catalytic residue at A152 (P = 0.0806);Loss of catalytic residue at A152 (P = 0.0806);Loss of catalytic residue at A152 (P = 0.0806);

MVP

0.68

MPC

1.2

ClinPred

0.72

GERP RS

5.4

Varity_R

0.19

gMVP

0.81

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