NM_170707.4:c.1158-44C>T

Variant names:

Variant summary

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

The NM_170707.4(LMNA):c.1158-44C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00717 in 1,612,684 control chromosomes in the GnomAD database, including 127 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0089 ( 23 hom., cov: 32)

Exomes 𝑓: 0.0070 ( 104 hom. )

Consequence

LMNA
NM_170707.4 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10O:1

Conservation

PhyloP100: -0.669

Publications

3 publications found

Variant links:

Genes affected

LMNA (HGNC:6636): (lamin A/C) The protein encoded by this gene is part of the nuclear lamina, a two-dimensional matrix of proteins located next to the inner nuclear membrane. The lamin family of proteins make up the matrix and are highly conserved in evolution. During mitosis, the lamina matrix is reversibly disassembled as the lamin proteins are phosphorylated. Lamin proteins are thought to be involved in nuclear stability, chromatin structure and gene expression. Vertebrate lamins consist of two types, A and B. Alternative splicing results in multiple transcript variants. Mutations in this gene lead to several diseases: Emery-Dreifuss muscular dystrophy, familial partial lipodystrophy, limb girdle muscular dystrophy, dilated cardiomyopathy, Charcot-Marie-Tooth disease, and Hutchinson-Gilford progeria syndrome. [provided by RefSeq, May 2022]

LMNA Gene-Disease associations (from GenCC):

dilated cardiomyopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
dilated cardiomyopathy 1A
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet
familial partial lipodystrophy, Dunnigan type
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
Hutchinson-Gilford progeria syndrome
Inheritance: AD, SD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
restrictive dermopathy 2
Inheritance: AR, AD Classification: DEFINITIVE, LIMITED Submitted by: G2P
Emery-Dreifuss muscular dystrophy 2, autosomal dominant
Inheritance: SD, AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
atrioventricular block
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
heart-hand syndrome, Slovenian type
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, G2P
Charcot-Marie-Tooth disease type 2B1
Inheritance: AR, AD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
Emery-Dreifuss muscular dystrophy 3, autosomal recessive
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
mandibuloacral dysplasia with type A lipodystrophy
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
atrial fibrillation
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
atypical Werner syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal dominant Emery-Dreifuss muscular dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
congenital muscular dystrophy due to LMNA mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
lethal restrictive dermopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
LMNA-related cardiocutaneous progeria syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive Emery-Dreifuss muscular dystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
dilated cardiomyopathy-hypergonadotropic hypogonadism syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
autosomal semi-dominant severe lipodystrophic laminopathy
Inheritance: SD Classification: SUPPORTIVE Submitted by: Orphanet
arrhythmogenic right ventricular cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

LMNA links:

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=-0.84).

BP6

Variant 1-156136170-C-T is Benign according to our data. Variant chr1-156136170-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 66786.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 = 0.0089 (1356/152316) while in subpopulation NFE AF = 0.00754 (513/68036). AF 95% confidence interval is 0.007. There are 23 homozygotes in GnomAd4. There are 808 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 23 AD,AR,SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LMNA	NM_170707.4 link	c.1158-44C>T		intron_variant	Intron 6 of 11	ENST00000368300.9	NP_733821.1	P02545-1A0A384MQX1
LMNA	NM_005572.4 link	c.1158-44C>T		intron_variant	Intron 6 of 9	ENST00000677389.1	NP_005563.1	P02545-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LMNA	ENST00000368300.9 link	c.1158-44C>T		intron_variant	Intron 6 of 11	1	NM_170707.4	ENSP00000357283.4		P02545-1
LMNA	ENST00000677389.1 link	c.1158-44C>T		intron_variant	Intron 6 of 9		NM_005572.4	ENSP00000503633.1		P02545-2

Frequencies

GnomAD3 genomes

AF:

0.00890

AC:

1355

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000675

Gnomad AMI

AF:

0.00439

Gnomad AMR

AF:

0.00353

Gnomad ASJ

AF:

0.0225

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.0601

Gnomad MID

AF:

0.0316

Gnomad NFE

AF:

0.00754

Gnomad OTH

AF:

0.0115

GnomAD2 exomes

AF:

0.0102

AC:

2535

AN:

249388

AF XY:

0.0101

show subpopulations

Gnomad AFR exome

AF:

0.000249

Gnomad AMR exome

AF:

0.00316

Gnomad ASJ exome

AF:

0.0222

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0549

Gnomad NFE exome

AF:

0.00807

Gnomad OTH exome

AF:

0.0125

GnomAD4 exome

AF:

0.00699

AC:

10207

AN:

1460368

Hom.:

104

Cov.:

AF XY:

0.00692

AC XY:

5025

AN XY:

726510

show subpopulations

African (AFR)

AF:

0.00114

AC:

AN:

33466

American (AMR)

AF:

0.00320

AC:

143

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.0221

AC:

578

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00173

AC:

149

AN:

86238

European-Finnish (FIN)

AF:

0.0510

AC:

2693

AN:

52810

Middle Eastern (MID)

AF:

0.0252

AC:

145

AN:

5752

European-Non Finnish (NFE)

AF:

0.00540

AC:

5997

AN:

1111226

Other (OTH)

AF:

0.00769

AC:

464

AN:

60348

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

667

1335

2002

2670

3337

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

200

400

600

800

1000

<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:

0.00890

AC:

1356

AN:

152316

Hom.:

Cov.:

AF XY:

0.0108

AC XY:

808

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.000673

AC:

AN:

41580

American (AMR)

AF:

0.00353

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.0225

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00145

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0601

AC:

637

AN:

10602

Middle Eastern (MID)

AF:

0.0374

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00754

AC:

513

AN:

68036

Other (OTH)

AF:

0.0113

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

126

190

253

316

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.0121

Hom.:

Bravo

AF:

0.00451

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6Other:1

Jun 14, 2018

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. -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Epithelial Biology; Institute of Medical Biology, Singapore

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

Feb 11, 2021

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 30, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

LMNA: BS2 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:2

Dec 03, 2016

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease type 2

Benign:1

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

LMNA-related disorder

Benign:1

Oct 15, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

0.31

(source)

DANN

Benign

0.48

PhyloP100

-0.67

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Mutation Taster

=100/0

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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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