rs727503434

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_005633.4(SOS1):​c.3971C>T​(p.Pro1324Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,552 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1324R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SOS1
NM_005633.4 missense

Scores

2
5
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.34

Publications

0 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: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.16491288).
BP6
Variant 2-38985855-G-A is Benign according to our data. Variant chr2-38985855-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 3692300.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SOS1NM_005633.4 linkc.3971C>T p.Pro1324Leu missense_variant Exon 23 of 23 ENST00000402219.8 NP_005624.2 Q07889-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SOS1ENST00000402219.8 linkc.3971C>T p.Pro1324Leu missense_variant Exon 23 of 23 1 NM_005633.4 ENSP00000384675.2 Q07889-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251180
AF XY:
0.00000737
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461552
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727074
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33440
American (AMR)
AF:
0.00
AC:
0
AN:
44702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111800
Other (OTH)
AF:
0.00
AC:
0
AN:
60370
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
31
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

RASopathy Benign:1
Aug 13, 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
0.065
BayesDel_addAF
Uncertain
0.049
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
24
DANN
Benign
0.88
DEOGEN2
Benign
0.31
T;T;T
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
.;D;D
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-0.62
T
MutationAssessor
Benign
0.52
N;N;.
PhyloP100
4.3
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
0.32
N;N;N
REVEL
Benign
0.28
Sift
Pathogenic
0.0
D;D;D
Sift4G
Benign
0.40
T;T;T
Polyphen
1.0
D;D;.
Vest4
0.14
MutPred
0.20
Loss of loop (P = 0.2237);Loss of loop (P = 0.2237);.;
MVP
0.27
MPC
0.51
ClinPred
0.44
T
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.42
gMVP
0.20
Mutation Taster
=65/35
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: rs727503434; hg19: chr2-39212996; API