11-119285483-C-T
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_005188.4(CBL):c.1858C>T(p.Leu620Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00178 in 1,614,204 control chromosomes in the GnomAD database, including 70 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).
Frequency
Consequence
NM_005188.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Benign. Variant got -20 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CBL | NM_005188.4 | c.1858C>T | p.Leu620Phe | missense_variant | Exon 11 of 16 | ENST00000264033.6 | NP_005179.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00194 AC: 296AN: 152242Hom.: 5 Cov.: 32
GnomAD3 exomes AF: 0.00301 AC: 756AN: 251406Hom.: 11 AF XY: 0.00282 AC XY: 383AN XY: 135878
GnomAD4 exome AF: 0.00176 AC: 2573AN: 1461844Hom.: 65 Cov.: 33 AF XY: 0.00175 AC XY: 1276AN XY: 727220
GnomAD4 genome AF: 0.00194 AC: 296AN: 152360Hom.: 5 Cov.: 32 AF XY: 0.00227 AC XY: 169AN XY: 74506
ClinVar
Submissions by phenotype
not specified Benign:7Other:1
- -
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Variant summary: CBL c.1858C>T (p.Leu620Phe) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.003 in 251406 control chromosomes, predominantly at a frequency of 0.033 within the East Asian subpopulation in the gnomAD database, including 9 homozygotes. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 13200-folds over the estimated maximal expected allele frequency for a pathogenic variant in CBL causing Noonan Syndrome and Related Conditions phenotype (2.5e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of East Asian origin. Three ClinVar submissions (evaluation after 2014) cite the variant twice as benign and once as likely benign. Based on the evidence outlined above, the variant was classified as benign. -
- -
- -
p.Leu620Phe in Exon 11 of CBL: This variant is not expected to have clinical sig nificance because it has been identified in 3.3% (286/8638) of East Asian chromo somes (including 2 homozygous individuals) by the Exome Aggregation Consortium ( ExAC, http://exac.broadinstitute.org; dbSNP rs2227988). -
- -
- -
not provided Benign:3
- -
- -
- -
Juvenile myelomonocytic leukemia;C3150803:CBL-related disorder Benign:1
- -
CBL-related disorder Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Juvenile myelomonocytic leukemia Benign:1
- -
Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
RASopathy Benign:1
- -
Noonan syndrome and Noonan-related syndrome Benign:1
- -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at