rs139592595

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BA1

This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.73C>T (p.Pro25Ser) variant in the SOS1 gene is 0.23% for African chromosomes by the Exome Aggregation Consortium (21/6116 with 95% CI), which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert panel for autosomal dominant RASopathy variants (BA1). LINK:https://erepo.genome.network/evrepo/ui/classification/CA181527/MONDO:0021060/004

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

SOS1
NM_005633.4 missense

Scores

2
1
15

Clinical Significance

Benign reviewed by expert panel B:9

Conservation

PhyloP100: 2.49

Publications

2 publications found
Variant links:
Genes affected
SOS1 (HGNC:11187): (SOS Ras/Rac guanine nucleotide exchange factor 1) This gene encodes a protein that is a guanine nucleotide exchange factor for RAS proteins, membrane proteins that bind guanine nucleotides and participate in signal transduction pathways. GTP binding activates and GTP hydrolysis inactivates RAS proteins. The product of this gene may regulate RAS proteins by facilitating the exchange of GTP for GDP. Mutations in this gene are associated with gingival fibromatosis 1 and Noonan syndrome type 4. [provided by RefSeq, Jul 2008]
SOS1 Gene-Disease associations (from GenCC):
  • Noonan syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Noonan syndrome 4
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • fibromatosis, gingival, 1
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hereditary gingival fibromatosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • cardiofaciocutaneous syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Costello syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BA1
For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005633.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOS1
NM_005633.4
MANE Select
c.73C>Tp.Pro25Ser
missense
Exon 1 of 23NP_005624.2
SOS1
NM_001382395.1
c.73C>Tp.Pro25Ser
missense
Exon 1 of 22NP_001369324.1
SOS1
NM_001382394.1
c.66+4314C>T
intron
N/ANP_001369323.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOS1
ENST00000402219.8
TSL:1 MANE Select
c.73C>Tp.Pro25Ser
missense
Exon 1 of 23ENSP00000384675.2
SOS1
ENST00000395038.6
TSL:5
c.73C>Tp.Pro25Ser
missense
Exon 1 of 22ENSP00000378479.2
SOS1
ENST00000692089.1
c.73C>Tp.Pro25Ser
missense
Exon 1 of 22ENSP00000508626.1

Frequencies

GnomAD3 genomes
AF:
0.000783
AC:
119
AN:
152064
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00239
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
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:
0.000478
GnomAD2 exomes
AF:
0.000144
AC:
32
AN:
222176
AF XY:
0.0000570
show subpopulations
Gnomad AFR exome
AF:
0.00234
Gnomad AMR exome
AF:
0.0000625
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:
0.000186
GnomAD4 exome
AF:
0.0000654
AC:
94
AN:
1437150
Hom.:
0
Cov.:
31
AF XY:
0.0000559
AC XY:
40
AN XY:
714948
show subpopulations
African (AFR)
AF:
0.00237
AC:
75
AN:
31700
American (AMR)
AF:
0.000184
AC:
8
AN:
43382
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25474
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37934
South Asian (SAS)
AF:
0.0000238
AC:
2
AN:
84034
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49474
Middle Eastern (MID)
AF:
0.000197
AC:
1
AN:
5088
European-Non Finnish (NFE)
AF:
0.00000182
AC:
2
AN:
1100836
Other (OTH)
AF:
0.000101
AC:
6
AN:
59228
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000789
AC:
120
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000780
AC XY:
58
AN XY:
74384
show subpopulations
African (AFR)
AF:
0.00241
AC:
100
AN:
41562
American (AMR)
AF:
0.00124
AC:
19
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5162
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67952
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
6
12
18
24
30
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:
0.000204
Hom.:
0
Bravo
AF:
0.00102
ESP6500AA
AF:
0.00341
AC:
15
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000231
AC:
28

ClinVar

ClinVar submissions as Germline

Significance:Benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
2
not specified (2)
-
-
2
RASopathy (2)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Noonan syndrome 4;C4551558:Fibromatosis, gingival, 1 (1)
-
-
1
SOS1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Uncertain
0.52
D
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.28
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.82
T
M_CAP
Pathogenic
0.89
D
MetaRNN
Benign
0.011
T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
0.75
N
PhyloP100
2.5
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.63
N
REVEL
Benign
0.21
Sift
Benign
0.40
T
Sift4G
Benign
0.79
T
Polyphen
0.0
B
Vest4
0.49
MVP
0.48
MPC
0.57
ClinPred
0.055
T
GERP RS
2.0
PromoterAI
-0.0020
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.10
gMVP
0.58
Mutation Taster
=81/19
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: rs139592595; hg19: chr2-39347491; API