1-156135246-G-A
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7
The NM_170707.4(LMNA):c.870G>A(p.Glu290=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,778 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )
Consequence
LMNA
NM_170707.4 synonymous
NM_170707.4 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 2.52
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 1-156135246-G-A is Benign according to our data. Variant chr1-156135246-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 476833.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1, Benign=1}.
BP7
Synonymous conserved (PhyloP=2.52 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LMNA | NM_170707.4 | c.870G>A | p.Glu290= | synonymous_variant | 5/12 | ENST00000368300.9 | |
LMNA | NM_005572.4 | c.870G>A | p.Glu290= | synonymous_variant | 5/10 | ENST00000677389.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LMNA | ENST00000368300.9 | c.870G>A | p.Glu290= | synonymous_variant | 5/12 | 1 | NM_170707.4 | P1 | |
LMNA | ENST00000677389.1 | c.870G>A | p.Glu290= | synonymous_variant | 5/10 | NM_005572.4 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152252Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000120 AC: 3AN: 250946Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135780
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GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461408Hom.: 0 Cov.: 34 AF XY: 0.00000688 AC XY: 5AN XY: 727024
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152370Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74516
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Dec 02, 2016 | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | May 28, 2015 | - - |
Cardiomyopathy Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Jan 20, 2019 | - - |
Charcot-Marie-Tooth disease type 2 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Aug 09, 2022 | - - |
Primary dilated cardiomyopathy Benign:1
Likely benign, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Nov 30, 2023 | - - |
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 11, 2019 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Computational scores
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BayesDel_noAF
Benign
CADD
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DANN
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RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at