rs374767640

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001130965.3(SUN1):c.220G>A(p.Asp74Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000404 in 1,609,166 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000040 ( 1 hom. )

Consequence

SUN1
NM_001130965.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.557

Publications

3 publications found

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06317982).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SUN1	NM_001130965.3 link	c.220G>A	p.Asp74Asn	missense_variant	Exon 2 of 19	ENST00000401592.6	NP_001124437.1	O94901-8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SUN1	ENST00000401592.6 link	c.220G>A	p.Asp74Asn	missense_variant	Exon 2 of 19	1	NM_001130965.3	ENSP00000384015.1		O94901-8

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152204

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000542

AC:

AN:

239900

AF XY:

0.0000613

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000605

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000730

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000398

AC:

AN:

1456844

Hom.:

Cov.:

AF XY:

0.0000469

AC XY:

AN XY:

724238

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33420

American (AMR)

AF:

0.0000454

AC:

AN:

44056

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25934

East Asian (EAS)

AF:

0.00

AC:

AN:

39582

South Asian (SAS)

AF:

0.000177

AC:

AN:

84762

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52714

Middle Eastern (MID)

AF:

0.000348

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000306

AC:

AN:

1110394

Other (OTH)

AF:

0.0000664

AC:

AN:

60228

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41576

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000165

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.0000497

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Emery-Dreifuss muscular dystrophy

Uncertain:1

Dec 02, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 74 of the SUN1 protein (p.Asp74Asn). This variant is present in population databases (rs374767640, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SUN1-related conditions. ClinVar contains an entry for this variant (Variation ID: 461651). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The asparagine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.80

CADD

Benign

0.56

(source)

DANN

Benign

0.39

DEOGEN2

Benign

0.0068

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

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.041

LIST_S2

Benign

0.55

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

M_CAP

Benign

0.0057

MetaRNN

Benign

0.063

T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

.;.;L;.;.;.;.;.;.;.;L;L;.;.

PhyloP100

-0.56

PrimateAI

Benign

0.42

PROVEAN

Benign

0.25

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

REVEL

Benign

0.096

Sift

Benign

0.96

T;T;T;T;T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.83

T;T;T;T;T;T;T;T;T;T;T;T;T;T

Polyphen

0.0010

.;B;.;.;.;.;.;.;.;.;.;.;B;.

Vest4

0.12

MVP

0.27

MPC

0.083

ClinPred

0.014

GERP RS

0.27

PromoterAI

0.010

Neutral

(source)

gMVP

0.13

Mutation Taster

=96/4

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over