rs188416492

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_144573.4(NEXN):​c.864+12T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00213 in 1,613,644 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0022 ( 8 hom. )

Consequence

NEXN
NM_144573.4 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.921

Publications

2 publications found
Variant links:
Genes affected
NEXN (HGNC:29557): (nexilin F-actin binding protein) This gene encodes a filamentous actin-binding protein that may function in cell adhesion and migration. Mutations in this gene have been associated with dilated cardiomyopathy, also known as CMD1CC. Alternatively spliced transcript variants have been described.[provided by RefSeq, Feb 2010]
NEXN Gene-Disease associations (from GenCC):
  • dilated cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • dilated cardiomyopathy 1CC
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • hypertrophic cardiomyopathy 20
    Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 1-77926904-T-A is Benign according to our data. Variant chr1-77926904-T-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 47913.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00139 (212/152312) while in subpopulation NFE AF = 0.00225 (153/68026). AF 95% confidence interval is 0.00196. There are 1 homozygotes in GnomAd4. There are 89 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 212 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEXNNM_144573.4 linkc.864+12T>A intron_variant Intron 8 of 12 ENST00000334785.12 NP_653174.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEXNENST00000334785.12 linkc.864+12T>A intron_variant Intron 8 of 12 1 NM_144573.4 ENSP00000333938.7

Frequencies

GnomAD3 genomes
AF:
0.00139
AC:
212
AN:
152194
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000579
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00113
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00225
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.00137
AC:
337
AN:
246810
AF XY:
0.00141
show subpopulations
Gnomad AFR exome
AF:
0.000263
Gnomad AMR exome
AF:
0.000378
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00181
Gnomad NFE exome
AF:
0.00214
Gnomad OTH exome
AF:
0.00318
GnomAD4 exome
AF:
0.00220
AC:
3220
AN:
1461332
Hom.:
8
Cov.:
32
AF XY:
0.00218
AC XY:
1587
AN XY:
726948
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33476
American (AMR)
AF:
0.000403
AC:
18
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.000615
AC:
53
AN:
86144
European-Finnish (FIN)
AF:
0.00216
AC:
115
AN:
53154
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5766
European-Non Finnish (NFE)
AF:
0.00259
AC:
2885
AN:
1111902
Other (OTH)
AF:
0.00224
AC:
135
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
160
320
481
641
801
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
114
228
342
456
570
<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:
0.00139
AC:
212
AN:
152312
Hom.:
1
Cov.:
32
AF XY:
0.00119
AC XY:
89
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.000577
AC:
24
AN:
41574
American (AMR)
AF:
0.00111
AC:
17
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000621
AC:
3
AN:
4830
European-Finnish (FIN)
AF:
0.00113
AC:
12
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00225
AC:
153
AN:
68026
Other (OTH)
AF:
0.00142
AC:
3
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
10
20
30
40
50
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.00147
Hom.:
0
Bravo
AF:
0.00129

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Mar 19, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

c.864+12T>A in intron 8 of NEXN: This variant is not expected to have clinical s ignificance because it is not located within the splice consensus sequence. It h as been identified in 0.2% (13/6568) of European American chromosomes from a bro ad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.ed u/EVS). -

May 22, 2014
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:1
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

NEXN-related disorder Benign:1
Jul 27, 2022
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Dilated cardiomyopathy 1CC;C3151267:Hypertrophic cardiomyopathy 20 Benign:1
Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
1.2
DANN
Benign
0.31
PhyloP100
0.92
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs188416492; hg19: chr1-78392589; API