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rs397517178

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_005633.4(SOS1):c.841A>G(p.Ser281Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,740 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SOS1
NM_005633.4 missense

Scores

4
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SOS1NM_005633.4 linkuse as main transcriptc.841A>G p.Ser281Gly missense_variant 6/23 ENST00000402219.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SOS1ENST00000402219.8 linkuse as main transcriptc.841A>G p.Ser281Gly missense_variant 6/231 NM_005633.4 A1Q07889-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251348
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000205
AC:
3
AN:
1461542
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727074
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineNov 17, 2011Variant classified as Uncertain Significance - Favor Benign. The Ser281Gly varia nt has not been reported in the literature nor identified in our laboratory in o ver 1,400 individuals. This residue is highly conserved across evolutionarily d istant species into fruit fly; however, the chicken has a glycine at this positi on. Computational analyses (AlignGVGD, PolyPhen2, SIFT) predict this change to be tolerated. It should be noted that these tools are not predictive enough to rule out pathogenicity. In the absence of additional information, such as contr ol studies, segregation data, or functional analyses, the clinical significance of this variant cannot be determined at this time. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.21
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.66
D;D;T
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.67
D;D;D
MetaSVM
Uncertain
0.30
D
MutationAssessor
Uncertain
2.4
M;M;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-3.0
D;D;D
REVEL
Uncertain
0.55
Sift
Benign
0.097
T;T;T
Sift4G
Benign
0.093
T;T;T
Polyphen
0.0010
B;B;.
Vest4
0.77
MutPred
0.41
Loss of glycosylation at S281 (P = 0.033);Loss of glycosylation at S281 (P = 0.033);Loss of glycosylation at S281 (P = 0.033);
MVP
0.95
MPC
0.58
ClinPred
0.56
D
GERP RS
5.7
Varity_R
0.45
gMVP
0.55

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs397517178; hg19: chr2-39278308; API