rs397517911

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP2PP3_ModeratePP5_Moderate

The ENST00000368300.9(LMNA):ā€‹c.863C>Gā€‹(p.Ala288Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,448 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

LMNA
ENST00000368300.9 missense

Scores

11
8
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 5.05
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 13 uncertain in ENST00000368300.9
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), LMNA. . Gene score misZ 2.3673 (greater than the threshold 3.09). Trascript score misZ 3.0905 (greater than threshold 3.09). GenCC has associacion of gene with familial partial lipodystrophy, Dunnigan type, autosomal recessive Emery-Dreifuss muscular dystrophy, LMNA-related cardiocutaneous progeria syndrome, atrioventricular block, dilated cardiomyopathy 1A, Emery-Dreifuss muscular dystrophy 2, autosomal dominant, atypical Werner syndrome, restrictive dermopathy 1, autosomal semi-dominant severe lipodystrophic laminopathy, Emery-Dreifuss muscular dystrophy 3, autosomal recessive, dilated cardiomyopathy, Charcot-Marie-Tooth disease type 2B1, dilated cardiomyopathy-hypergonadotropic hypogonadism syndrome, arrhythmogenic right ventricular cardiomyopathy, familial isolated dilated cardiomyopathy, mandibuloacral dysplasia with type A lipodystrophy, autosomal dominant Emery-Dreifuss muscular dystrophy, heart-hand syndrome, Slovenian type, congenital muscular dystrophy due to LMNA mutation, lethal restrictive dermopathy, Hutchinson-Gilford progeria syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.903
PP5
Variant 1-156135239-C-G is Pathogenic according to our data. Variant chr1-156135239-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 48089.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-156135239-C-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LMNANM_170707.4 linkuse as main transcriptc.863C>G p.Ala288Gly missense_variant 5/12 ENST00000368300.9 NP_733821.1
LMNANM_005572.4 linkuse as main transcriptc.863C>G p.Ala288Gly missense_variant 5/10 ENST00000677389.1 NP_005563.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LMNAENST00000368300.9 linkuse as main transcriptc.863C>G p.Ala288Gly missense_variant 5/121 NM_170707.4 ENSP00000357283 P1P02545-1
LMNAENST00000677389.1 linkuse as main transcriptc.863C>G p.Ala288Gly missense_variant 5/10 NM_005572.4 ENSP00000503633 P02545-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461448
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727044
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary dilated cardiomyopathy Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 13, 2012The Ala288Gly variant in LMNA has not been reported in the literature nor in 2 l arge and broad populations (European and African American) screened by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/). This low frequen cy supports a pathogenic role. Our laboratory has detected this variant in one i ndividual with DCM + atrial fibrillation as well as one affected family member w ith atrial fibrillation. The constellation of features present in this family is consistent with a laminopathy. Computational analyses (biochemical amino acid p roperties, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Ala288 Gly variant may impact the protein, though this information is not predictive en ough to determine pathogenicity. In summary, this variant is likely to be pathog enic, though additional studies are required to establish this with certainty. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.64
CardioboostCm
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.21
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.94
.;.;.;D;.;.;.;.
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.57
D
MetaRNN
Pathogenic
0.90
D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.79
D
MutationAssessor
Pathogenic
3.1
M;.;M;M;M;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.4
D;D;D;D;D;D;D;D
REVEL
Pathogenic
0.77
Sift
Uncertain
0.0030
D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.014
D;D;D;D;D;D;D;D
Polyphen
0.85
P;.;P;P;.;.;D;.
Vest4
0.73
MutPred
0.72
Loss of stability (P = 0.0565);Loss of stability (P = 0.0565);Loss of stability (P = 0.0565);Loss of stability (P = 0.0565);Loss of stability (P = 0.0565);.;.;.;
MVP
0.87
MPC
2.0
ClinPred
0.98
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.53
gMVP
0.96

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs397517911; hg19: chr1-156105030; API