Genetic Variant SAMD3:p.Val200Met (chr6-130184159-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001017373.4(SAMD3):c.598G>A(p.Val200Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000465 in 1,613,842 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

SAMD3
NM_001017373.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.11

Variant links:

Genes affected

SAMD3 (HGNC:21574): (sterile alpha motif domain containing 3)

SAMD3 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
SAMD3	NM_001017373.4 link	c.598G>A	p.Val200Met	missense_variant	Exon 7 of 12	ENST00000439090.7	NP_001017373.2	Q8N6K7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SAMD3	ENST00000439090.7 link	c.598G>A	p.Val200Met	missense_variant	Exon 7 of 12	2	NM_001017373.4	ENSP00000403565.2		Q8N6K7-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000359

AC:

AN:

250992

Hom.:

AF XY:

0.0000369

AC XY:

AN XY:

135630

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000982

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000493

AC:

AN:

1461518

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727046

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000567

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000364

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.598G>A (p.V200M) alteration is located in exon 7 (coding exon 5) of the SAMD3 gene. This alteration results from a G to A substitution at nucleotide position 598, causing the valine (V) at amino acid position 200 to be replaced by a methionine (M). 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

0.61

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Pathogenic

0.21

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

T;.;T;T;.;.;.

Eigen

Pathogenic

0.68

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.94

.;D;.;D;D;D;D

M_CAP

Benign

0.065

MetaRNN

Uncertain

0.51

D;D;D;D;D;D;D

MetaSVM

Uncertain

-0.095

MutationAssessor

Uncertain

2.9

M;.;M;M;.;M;.

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-1.5

N;N;N;N;N;N;N

REVEL

Uncertain

0.35

Sift

Uncertain

0.0040

D;D;D;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;.

Polyphen

1.0

D;.;D;D;.;D;.

Vest4

0.83

MutPred

0.46

Gain of helix (P = 0.132);.;Gain of helix (P = 0.132);Gain of helix (P = 0.132);.;Gain of helix (P = 0.132);.;

MVP

0.74

MPC

0.24

ClinPred

0.43

GERP RS

5.5

Varity_R

0.18

gMVP

0.68

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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