rs397507546
Variant summary
Our verdict is Pathogenic. The variant received 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_002834.5(PTPN11):c.1508G>A(p.Gly503Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 14/23 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G503A) has been classified as Pathogenic.
Frequency
Consequence
NM_002834.5 missense
Scores
Clinical Significance
Conservation
Publications
- LEOPARD syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia, Genomics England PanelApp
- Noonan syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Noonan syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, PanelApp Australia
- Noonan syndrome with multiple lentiginesInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- metachondromatosisInheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
- cardiofaciocutaneous syndromeInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- Costello syndromeInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Pathogenic. The variant received 19 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_002834.5. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| PTPN11 | NM_002834.5 | MANE Select | c.1508G>A | p.Gly503Glu | missense | Exon 13 of 16 | NP_002825.3 | ||
| PTPN11 | NM_001330437.2 | c.1520G>A | p.Gly507Glu | missense | Exon 13 of 16 | NP_001317366.1 | |||
| PTPN11 | NM_001374625.1 | c.1505G>A | p.Gly502Glu | missense | Exon 13 of 16 | NP_001361554.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| PTPN11 | ENST00000351677.7 | TSL:1 MANE Select | c.1508G>A | p.Gly503Glu | missense | Exon 13 of 16 | ENSP00000340944.3 | ||
| PTPN11 | ENST00000635625.1 | TSL:5 | c.1520G>A | p.Gly507Glu | missense | Exon 13 of 15 | ENSP00000489597.1 | ||
| PTPN11 | ENST00000635652.1 | TSL:3 | c.521G>A | p.Gly174Glu | missense | Exon 5 of 5 | ENSP00000489541.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152166Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461866Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727232 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152166Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74322 show subpopulations
ClinVar
Submissions by phenotype
Noonan syndrome 1 Pathogenic:5
This variant is classified as Pathogenic. Evidence in support of pathogenic classification: Variant is present in gnomAD (v3) <0.001 for a dominant condition (1 heterozygote, 0 homozygotes); This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been classified as pathogenic by multiple clinical laboratories in ClinVar, and has been reported in the literature in individuals with Noonan syndrome or a phenotype overlapping with Noonan (PMIDs: 18678287, 26785492); Other missense variants comparable to the one identified in this case have very strong previous evidence for pathogenicity. p.(Gly503Ala), p.(Gly503Arg) and p.(Gly503Trp)have been classified as pathogenic/likely pathogenic by clinical laboratories in ClinVar; Variant is located in a hotspot region or cluster of pathogenic variants (DECIPHER); Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change; This variant has been shown to be de novo in the proband (parental status confirmed) (by trio analysis). Additional information: Variant is predicted to result in a missense amino acid change from glycine to glutamic acid; This variant is heterozygous; This gene is associated with autosomal dominant disease; An alternative amino acid change at the same position has been observed in gnomAD (v2) (1 heterozygote, 0 homozygotes); Both loss of function and gain of function are known mechanisms of disease for this gene. Metachondromatosis (MIM#156250) and Noonan syndrome with multiple lentigines (MIM#151100) have been associated with loss of function variants, whereas Noonan syndrome 1 (MIM#163950) is caused by gain of function variants (PMIDs: 11992261, 24935154, 21533187; ClinGen expert panel); Variants in this gene are known to have variable expressivity. Noonan syndrome is known to have variable expressivity (PMID: 20301303).
The variant is observed at an extremely low frequency in the gnomAD v4.0.0 dataset (total allele frequency: <0.001%). Predicted Consequence/Location: Missense changes are a common disease-causing mechanism. In silico tool predictions suggest damaging effect of the variant on gene or gene product [REVEL: 0.98 (>=0.6, sensitivity 0.68 and specificity 0.92); 3Cnet: 0.99 (>=0.6, sensitivity 0.72 and precision 0.9)]. The same nucleotide change resulting in the same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000040561 /PMID: 18678287).Different missense changes at the same codon (p.Gly503Ala, p.Gly503Arg, p.Gly503Val) have been reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000040558, VCV000040559, VCV000040560, VCV000162464, VCV000571101 /PMID: 12960218, 16358218, 21407260, 23756559). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline.
LEOPARD syndrome 1 Pathogenic:2
not provided Pathogenic:2
Not observed in large population cohorts (gnomAD); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; The majority of missense variants in this gene are considered pathogenic (HGMD); This variant is associated with the following publications: (PMID: 18678287, 26785492, 25862627, 24803665, 22391158, 22138486, 21784522, 16358218, 24613412, 28628100, 19737548, 25363768, 28694526, 28991257, 28191890, 31036916, 32233106, 28714951, 33482836, 28191889, 32368696, 34011629, 31785789, 29493581)
Metachondromatosis Pathogenic:1
Juvenile myelomonocytic leukemia;C0410530:Metachondromatosis;C4551484:LEOPARD syndrome 1;C4551602:Noonan syndrome 1 Pathogenic:1
RASopathy Pathogenic:1
This variant disrupts the p.Gly503 amino acid residue in PTPN11. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 12960218, 16358218, 18758896, 19077116, 19737548, 24754368). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PTPN11 protein function. ClinVar contains an entry for this variant (Variation ID: 40561). This missense change has been observed in individual(s) with Noonan syndrome (PMID: 18678287, 26785492). In at least one individual the variant was observed to be de novo. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 503 of the PTPN11 protein (p.Gly503Glu). For these reasons, this variant has been classified as Pathogenic.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at