rs764599897

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_005188.4(CBL):​c.1423G>A​(p.Gly475Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. G475V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CBL
NM_005188.4 missense

Scores

5
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 1.63

Publications

1 publications found
Variant links:
Genes affected
CBL (HGNC:1541): (Cbl proto-oncogene) This gene is a proto-oncogene that encodes a RING finger E3 ubiquitin ligase. The encoded protein is one of the enzymes required for targeting substrates for degradation by the proteasome. This protein mediates the transfer of ubiquitin from ubiquitin conjugating enzymes (E2) to specific substrates. This protein also contains an N-terminal phosphotyrosine binding domain that allows it to interact with numerous tyrosine-phosphorylated substrates and target them for proteasome degradation. As such it functions as a negative regulator of many signal transduction pathways. This gene has been found to be mutated or translocated in many cancers including acute myeloid leukaemia, and expansion of CGG repeats in the 5' UTR has been associated with Jacobsen syndrome. Mutations in this gene are also the cause of Noonan syndrome-like disorder. [provided by RefSeq, Jul 2016]
CBL Gene-Disease associations (from GenCC):
  • CBL-related disorder
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, Genomics England PanelApp
  • juvenile myelomonocytic leukemia
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Noonan syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12021628).
BP6
Variant 11-119278705-G-A is Benign according to our data. Variant chr11-119278705-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 477697.
BS2
High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CBLNM_005188.4 linkc.1423G>A p.Gly475Ser missense_variant Exon 9 of 16 ENST00000264033.6 NP_005179.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CBLENST00000264033.6 linkc.1423G>A p.Gly475Ser missense_variant Exon 9 of 16 1 NM_005188.4 ENSP00000264033.3

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000797
AC:
2
AN:
250944
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461654
Hom.:
0
Cov.:
33
AF XY:
0.00000688
AC XY:
5
AN XY:
727156
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33472
American (AMR)
AF:
0.0000671
AC:
3
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5702
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111884
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74320
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41428
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.556
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
May 30, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: CBL c.1423G>A (p.Gly475Ser) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 250944 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.1423G>A in individuals affected with Noonan Syndrome-Like Disorder and no experimental evidence demonstrating its impact on protein function have been reported. The following publications have been ascertained in the context of this evaluation (PMID: 27069254, 25224413, 19387008, 23690417, 21828135, 19901108, 20619386, 25952305, 20951944, 19620960, 22733026, 23010802, 29296819). Two ClinVar submitters have assessed the variant since 2014: one classified the variant as likely benign, and one as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Juvenile myelomonocytic leukemia;C3150803:CBL-related disorder Uncertain:1
Dec 03, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Uncertain:1
Sep 17, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.G475S variant (also known as c.1423G>A), located in coding exon 9 of the CBL gene, results from a G to A substitution at nucleotide position 1423. The glycine at codon 475 is replaced by serine, an amino acid with similar properties. This variant was reported in a subject with features of Noonan syndrome, but was also seen in an unaffected parent (Martinelli S et al. Hum Mutat, 2015 Aug;36:787-96). 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 Benign:1
May 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.36
T;.;T;.
Eigen
Benign
-0.032
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
D;D;D;D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.12
T;T;T;T
MetaSVM
Benign
-0.76
T
MutationAssessor
Benign
1.2
L;.;.;.
PhyloP100
1.6
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.050
N;.;.;.
REVEL
Uncertain
0.30
Sift
Benign
0.26
T;.;.;.
Sift4G
Benign
0.69
T;T;T;.
Polyphen
0.55
P;.;.;.
Vest4
0.29
MutPred
0.12
Gain of phosphorylation at G475 (P = 0.0207);Gain of phosphorylation at G475 (P = 0.0207);Gain of phosphorylation at G475 (P = 0.0207);.;
MVP
0.87
MPC
0.21
ClinPred
0.25
T
GERP RS
5.0
Varity_R
0.096
gMVP
0.27
Mutation Taster
=85/15
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs764599897; hg19: chr11-119149415; API