rs772587016
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_006939.4(SOS2):c.3761C>T(p.Thr1254Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,994 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. T1254R) has been classified as Uncertain significance.
Frequency
Consequence
NM_006939.4 missense
Scores
Clinical Significance
Conservation
Publications
- Noonan syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Noonan syndrome 9Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia, G2P
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SOS2 | ENST00000216373.10 | c.3761C>T | p.Thr1254Met | missense_variant | Exon 23 of 23 | 1 | NM_006939.4 | ENSP00000216373.5 | ||
| SOS2 | ENST00000543680.5 | c.3662C>T | p.Thr1221Met | missense_variant | Exon 22 of 22 | 1 | ENSP00000445328.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152124Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251492 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1461870Hom.: 0 Cov.: 33 AF XY: 0.00000963 AC XY: 7AN XY: 727242 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152124Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1AN XY: 74308 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Cardiovascular phenotype Uncertain:1
The p.T1254M variant (also known as c.3761C>T), located in coding exon 23 of the SOS2 gene, results from a C to T substitution at nucleotide position 3761. The threonine at codon 1254 is replaced by methionine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Noonan syndrome 9 Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at