Variant rs368333285 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001130965.3(SUN1):c.2227A>G(p.Met743Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000066 in 1,590,394 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 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

SUN1
NM_001130965.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.23

Variant links:

Genes affected

SUN1 (HGNC:18587): (Sad1 and UNC84 domain containing 1) This gene is a member of the unc-84 homolog family and encodes a nuclear envelope protein with an Unc84 (SUN) domain. The protein is involved in nuclear anchorage and migration. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2019]

SUN1 links:

SUN1 (HGNC:):

SUN1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29380748).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SUN1	NM_001130965.3 linkuse as main transcript	c.2227A>G	p.Met743Val	missense_variant	18/19	ENST00000401592.6	NP_001124437.1	O94901-8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SUN1	ENST00000401592.6 linkuse as main transcript	c.2227A>G	p.Met743Val	missense_variant	18/19	1	NM_001130965.3	ENSP00000384015.1		O94901-8

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000441

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.0000339

AC:

AN:

206552

Hom.:

AF XY:

0.0000270

AC XY:

AN XY:

110946

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000167

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:

0.0000221

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000688

AC:

AN:

1438278

Hom.:

Cov.:

AF XY:

0.0000743

AC XY:

AN XY:

712846

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000243

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:

0.0000773

Gnomad4 OTH exome

AF:

0.0000672

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000957

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.0000249

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 25, 2023

The c.2227A>G (p.M743V) alteration is located in exon 18 (coding exon 18) of the SUN1 gene. This alteration results from a A to G substitution at nucleotide position 2227, causing the methionine (M) at amino acid position 743 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Emery-Dreifuss muscular dystrophy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 27, 2023

This variant has not been reported in the literature in individuals affected with SUN1-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬† is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 461652). This variant is present in population databases (rs368333285, gnomAD 0.02%). This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 743 of the SUN1 protein (p.Met743Val). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.26

CADD

Benign

DANN

Benign

0.88

DEOGEN2

Benign

0.030

.;.;T;.;.;T

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.87

.;D;D;D;D;D

M_CAP

Benign

0.014

MetaRNN

Benign

0.29

T;T;T;T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.33

PROVEAN

Uncertain

-2.4

N;N;N;N;N;N

REVEL

Benign

0.17

Sift

Benign

0.075

T;T;T;T;T;T

Sift4G

Benign

0.14

T;T;T;T;T;T

Polyphen

0.86

P;.;.;.;P;.

Vest4

0.43

MVP

0.18

MPC

0.72

ClinPred

0.22

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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