rs753151750

Variant summary

Our verdict is Uncertain significance. The variant received -1 ACMG points: 0P and 1B. BP4

This summary comes from the ClinGen Evidence Repository: The c.3584C>T (NM_006939.4(SOS2):c.3584C>T (p.Ala1195Val)) variant in SOS2 is a missense variant predicted to cause substitution of alanine by valine at amino acid 1195. The filtering allele frequency in gnomAD v2.1.1 is 0.003446 % (no population codes met). The computational predictor REVEL gives a score of 0.183 which is below the threshold of 0.3, evidence that does not predict a damaging effect on SOS2 function (BP4). In summary, this variant meets the criteria to be classified as uncertain significance for autosomal dominant RASopathy, based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy VCEP: BP4 (Version 2.3; 12/3/2024). LINK:https://erepo.genome.network/evrepo/ui/classification/CA7176746/MONDO:0021060/042

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 30)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

SOS2
NM_006939.4 missense

Scores

1
17

Clinical Significance

Uncertain significance reviewed by expert panel U:2B:3

Conservation

PhyloP100: 4.75

Publications

1 publications found
Variant links:
Genes affected
SOS2 (HGNC:11188): (SOS Ras/Rho guanine nucleotide exchange factor 2) This gene encodes a regulatory protein that is involved in the positive regulation of ras proteins. Mutations in this gene are associated with Noonan Syndrome-9. [provided by RefSeq, Jul 2016]
SOS2 Gene-Disease associations (from GenCC):
  • Noonan syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Noonan syndrome 9
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P, Ambry Genetics, Genomics England PanelApp
  • cardiofaciocutaneous syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Costello syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome with multiple lentigines
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome-like disorder with loose anagen hair
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received -1 ACMG points.

BP4
For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006939.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOS2
NM_006939.4
MANE Select
c.3584C>Tp.Ala1195Val
missense
Exon 23 of 23NP_008870.2Q07890-1
SOS2
NM_001411020.1
c.3485C>Tp.Ala1162Val
missense
Exon 22 of 22NP_001397949.1Q07890-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOS2
ENST00000216373.10
TSL:1 MANE Select
c.3584C>Tp.Ala1195Val
missense
Exon 23 of 23ENSP00000216373.5Q07890-1
SOS2
ENST00000543680.5
TSL:1
c.3485C>Tp.Ala1162Val
missense
Exon 22 of 22ENSP00000445328.1Q07890-2
SOS2
ENST00000934708.1
c.3725C>Tp.Ala1242Val
missense
Exon 24 of 24ENSP00000604767.1

Frequencies

GnomAD3 genomes
AF:
0.0000396
AC:
6
AN:
151394
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000736
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000360
AC:
9
AN:
249676
AF XY:
0.0000370
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000710
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000349
AC:
51
AN:
1460916
Hom.:
0
Cov.:
33
AF XY:
0.0000358
AC XY:
26
AN XY:
726744
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33468
American (AMR)
AF:
0.00
AC:
0
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39686
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86218
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53258
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000450
AC:
50
AN:
1111384
Other (OTH)
AF:
0.00
AC:
0
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.0000396
AC:
6
AN:
151510
Hom.:
0
Cov.:
30
AF XY:
0.0000541
AC XY:
4
AN XY:
73974
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41262
American (AMR)
AF:
0.00
AC:
0
AN:
15186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5150
South Asian (SAS)
AF:
0.000210
AC:
1
AN:
4772
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10488
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000736
AC:
5
AN:
67890
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000283
Hom.:
0
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
1
-
Cardiovascular phenotype (1)
-
-
1
Noonan syndrome 9 (1)
-
1
-
RASopathy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
20
DANN
Benign
0.89
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.13
Eigen_PC
Benign
0.10
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.082
T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
0.0
N
PhyloP100
4.8
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.67
N
REVEL
Benign
0.18
Sift
Benign
0.71
T
Sift4G
Benign
0.44
T
Polyphen
0.0020
B
Vest4
0.038
MVP
0.16
MPC
0.19
ClinPred
0.15
T
GERP RS
5.0
Varity_R
0.078
gMVP
0.11
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs753151750; hg19: chr14-50585477; API