Variant 16-18816363-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_015092.5(SMG1):c.10241T>C(p.Val3414Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000242 in 1,613,970 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: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

SMG1
NM_015092.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.55

Variant links:

Genes affected

SMG1 (HGNC:30045): (SMG1 nonsense mediated mRNA decay associated PI3K related kinase) This gene encodes a protein involved in nonsense-mediated mRNA decay (NMD) as part of the mRNA surveillance complex. The protein has kinase activity and is thought to function in NMD by phosphorylating the regulator of nonsense transcripts 1 protein. Alternatively spliced transcript variants have been described, but their full-length nature has yet to be determined. [provided by RefSeq, Mar 2013]

SMG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.051889718).

BS2

High AC in GnomAdExome4 at 35 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SMG1	NM_015092.5 linkuse as main transcript	c.10241T>C	p.Val3414Ala	missense_variant	58/63	ENST00000446231.7	NP_055907.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SMG1	ENST00000446231.7 linkuse as main transcript	c.10241T>C	p.Val3414Ala	missense_variant	58/63	1	NM_015092.5	ENSP00000402515	P1	Q96Q15-1
SMG1	ENST00000565324.5 linkuse as main transcript	c.9911T>C	p.Val3304Ala	missense_variant	56/61	1		ENSP00000456259

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000136

AC:

AN:

249114

Hom.:

AF XY:

0.0000666

AC XY:

AN XY:

135154

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000956

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:

0.00

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000239

AC:

AN:

1461646

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727102

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000715

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74484

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000572

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.000116

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 28, 2021

The c.10241T>C (p.V3414A) alteration is located in exon 58 (coding exon 58) of the SMG1 gene. This alteration results from a T to C substitution at nucleotide position 10241, causing the valine (V) at amino acid position 3414 to be replaced by an alanine (A). 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

0.22

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.42

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.19

T;T

Eigen

Benign

0.044

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.013

MetaRNN

Benign

0.052

T;T

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.55

N;.

MutationTaster

Benign

0.77

D;D

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-2.6

D;.

REVEL

Benign

0.12

Sift

Uncertain

0.015

D;.

Polyphen

0.043

B;.

Vest4

0.63

MVP

0.27

MPC

0.36

ClinPred

0.14

GERP RS

6.2

Varity_R

0.20

gMVP

0.27

Splicing

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