rs1060500347
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_001042492.3(NF1):c.1392+1del variant causes a frameshift, splice region change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. P464P) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
NF1
NM_001042492.3 frameshift, splice_region
NM_001042492.3 frameshift, splice_region
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 4.34
Genes affected
NF1 (HGNC:7765): (neurofibromin 1) This gene product appears to function as a negative regulator of the ras signal transduction pathway. Mutations in this gene have been linked to neurofibromatosis type 1, juvenile myelomonocytic leukemia and Watson syndrome. The mRNA for this gene is subject to RNA editing (CGA>UGA->Arg1306Term) resulting in premature translation termination. Alternatively spliced transcript variants encoding different isoforms have also been described for this gene. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 12 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 17-31206370-CG-C is Pathogenic according to our data. Variant chr17-31206370-CG-C is described in ClinVar as [Pathogenic]. Clinvar id is 404560.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NF1 | NM_001042492.3 | c.1392+1del | frameshift_variant, splice_region_variant | 12/58 | ENST00000358273.9 | ||
NF1 | NM_000267.3 | c.1392+1del | frameshift_variant, splice_region_variant | 12/57 | |||
NF1 | NM_001128147.3 | c.1392+1del | frameshift_variant, splice_region_variant | 12/15 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NF1 | ENST00000358273.9 | c.1392+1del | frameshift_variant, splice_region_variant | 12/58 | 1 | NM_001042492.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Neurofibromatosis, type 1 Pathogenic:2
Pathogenic, no assertion criteria provided | clinical testing | Medical Genetics, University of Parma | Feb 02, 2017 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Aug 29, 2021 | This sequence change creates a premature translational stop signal (p.Ser465Valfs*8) in the NF1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in NF1 are known to be pathogenic (PMID: 10712197, 23913538). For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 404560). This variant is also known as c.1392+1del. This premature translational stop signal has been observed in individual(s) with neurofibromatosis type 1 (PMID: 28961165). This variant is not present in population databases (ExAC no frequency). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: 0
DS_DL_spliceai
Position offset: 1
Find out detailed SpliceAI scores and Pangolin per-transcript scores at