rs757898729
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2
The NM_005188.4(CBL):c.227C>A(p.Ala76Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000434 in 1,613,628 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A76V) 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: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CBL | NM_005188.4 | c.227C>A | p.Ala76Glu | missense_variant | Exon 2 of 16 | ENST00000264033.6 | NP_005179.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152168Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000796 AC: 2AN: 251214 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461460Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727058 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152168Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74336 show subpopulations
ClinVar
Submissions by phenotype
RASopathy Uncertain:1
Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CBL protein function. 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. ClinVar contains an entry for this variant (Variation ID: 1004948). This sequence change replaces alanine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 76 of the CBL protein (p.Ala76Glu). This variant is present in population databases (rs757898729, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with CBL-related conditions. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at