NM_001042492.3:c.7135G>A
Variant summary
Our verdict is Likely pathogenic. The variant received 7 ACMG points: 8P and 1B. PM1PM2PP3_StrongBP6
The NM_001042492.3(NF1):c.7135G>A(p.Gly2379Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,834 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G2379V) has been classified as Uncertain significance.
Frequency
Consequence
NM_001042492.3 missense
Scores
Clinical Significance
Conservation
Publications
- neurofibromatosis type 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, G2P, Genomics England PanelApp
- neurofibromatosis-Noonan syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, PanelApp Australia
- Moyamoya diseaseInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- hereditary pheochromocytoma-paragangliomaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 7 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152068Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251372 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461766Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727180 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152068Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74264 show subpopulations
ClinVar
Submissions by phenotype
Neurofibromatosis, type 1 Uncertain:2Benign:1
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The NF1 c.7072G>A (p.Gly2358Arg) missense change has a maximum subpopulation frequency of 0.00088% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. This variant occurs in a gene where missense variants are more likely to be damaging based on methods described by Lek et al. (PP2; PMID: 27535533). To our knowledge, this variant has not been reported in individuals with Neurofibromatosis type 1. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
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not provided Uncertain:2Benign:1
The NF1 c.7135G>A; p.Gly2379Arg variant (rs775476318), also known as c.7072G>A; p.Gly2358Arg for NM_000267.3, to our knowledge, is not reported in the medical literature in association with NF1-related disease but is reported in ClinVar (Variation ID: 404531). This variant is found in the general population with an allele frequency of 0.0016% (4/251,372 alleles) in the Genome Aggregation Database. The glycine at codon 2379 is highly conserved, but computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.609). Due to limited information, the clinical significance of the p.Gly2379Arg variant is uncertain at this time. -
Reported as p.(Gly2379Arg) in an individual with pheochromocytoma who also had a somatic variant in the H3-3A gene identified (PMID: 36760809); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25486365, 30287823, 33471991, 36760809) -
NF1: PP2, BS1 -
Neurofibromatosis, type 1;C0349639:Juvenile myelomonocytic leukemia;C0553586:Café-au-lait macules with pulmonary stenosis;C1834235:Neurofibromatosis, familial spinal;C2931482:Neurofibromatosis-Noonan syndrome Uncertain:1
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Hereditary cancer-predisposing syndrome;CN230736:Cardiovascular phenotype Uncertain:1
The p.G2358R variant (also known as c.7072G>A), located in coding exon 47 of the NF1 gene, results from a G to A substitution at nucleotide position 7072. The glycine at codon 2358 is replaced by arginine, an amino acid with dissimilar properties. This alteration was observed in 0/7,051 unselected female breast cancer patients and was observed with an allele frequency of 0.00009 in 11,241 female controls of Japanese ancestry (Momozawa Y et al. Nat Commun, 2018 10;9:4083). This variant was also reported in 1/60,466 breast cancer cases and in 1/53,461 controls (Dorling et al. N Engl J Med. 2021 02;384:428-439). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at