rs1555611039
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PVS1_ModeratePM2PP3PP5_Very_Strong
The NM_001042492.3(NF1):c.1183_1185+2del variant causes a splice donor, coding sequence change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. F394F) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 32)
Consequence
NF1
NM_001042492.3 splice_donor, coding_sequence
NM_001042492.3 splice_donor, coding_sequence
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 9.56
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 13 ACMG points.
PVS1
?
Splicing variant, NOT destroyed by nmd, known LOF gene, truncates exone, which is 0.0071596242 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
PP5
?
Variant 17-31201155-TTAAGG-T is Pathogenic according to our data. Variant chr17-31201155-TTAAGG-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 457519.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NF1 | NM_001042492.3 | c.1183_1185+2del | splice_donor_variant, coding_sequence_variant | 10/58 | ENST00000358273.9 | ||
NF1 | NM_000267.3 | c.1183_1185+2del | splice_donor_variant, coding_sequence_variant | 10/57 | |||
NF1 | NM_001128147.3 | c.1183_1185+2del | splice_donor_variant, coding_sequence_variant | 10/15 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NF1 | ENST00000358273.9 | c.1183_1185+2del | splice_donor_variant, coding_sequence_variant | 10/58 | 1 | NM_001042492.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Neurofibromatosis, type 1 Pathogenic:3
Pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Mar 15, 2022 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Genome Diagnostics Laboratory, The Hospital for Sick Children | Oct 26, 2020 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jun 05, 2017 | In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Donor and acceptor splice site variants typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in NF1 are known to be pathogenic (PMID: 10712197, 23913538). This variant has not been reported in the literature in individuals with a NF1-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change deletes the last three nucleotides in exon 10 and affects a donor splice site in intron 10 of the NF1 gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at