rs371850672
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_005188.4(CBL):c.1360A>G(p.Asn454Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,613,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. N454Y) has been classified as Uncertain significance.
Frequency
Consequence
NM_005188.4 missense
Scores
Clinical Significance
Conservation
Publications
- CBL-related disorderInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, Genomics England PanelApp
- juvenile myelomonocytic leukemiaInheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- Noonan syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CBL | NM_005188.4 | c.1360A>G | p.Asn454Asp | missense_variant | Exon 9 of 16 | ENST00000264033.6 | NP_005179.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| CBL | ENST00000264033.6 | c.1360A>G | p.Asn454Asp | missense_variant | Exon 9 of 16 | 1 | NM_005188.4 | ENSP00000264033.3 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152062Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251360 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.0000205 AC: 30AN: 1461862Hom.: 0 Cov.: 33 AF XY: 0.0000206 AC XY: 15AN XY: 727230 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152062Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 4AN XY: 74252 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: 2 /126572 Europeans in GnomAd; not in HGMD or google search; likely benign by Illumina in ClinVar, conserved, predicted benign. Identified in 1 individual with HCM.
Cardiovascular phenotype Uncertain:1
The p.N454D variant (also known as c.1360A>G), located in coding exon 9 of the CBL gene, results from an A to G substitution at nucleotide position 1360. The asparagine at codon 454 is replaced by aspartic acid, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.
RASopathy Uncertain:1
This sequence change replaces asparagine, which is neutral and polar, with aspartic acid, which is acidic and polar, at codon 454 of the CBL protein (p.Asn454Asp). This variant is present in population databases (rs371850672, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with CBL-related conditions. ClinVar contains an entry for this variant (Variation ID: 302780). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt CBL protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Noonan-like syndrome Benign:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at