rs995860476
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_005188.4(CBL):c.1460T>C(p.Met487Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict 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. M487V) has been classified as Likely benign.
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
Genome browser will be placed here
ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CBL | NM_005188.4 | c.1460T>C | p.Met487Thr | missense_variant | Exon 10 of 16 | ENST00000264033.6 | NP_005179.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251466 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461884Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1AN XY: 727246 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74334 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
RASopathy Uncertain:1
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. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The threonine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with CBL-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with threonine at codon 487 of the CBL protein (p.Met487Thr). The methionine residue is weakly conserved and there is a moderate physicochemical difference between methionine and threonine. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at