About PTPN11
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is uncertain. Select a step to read what it means.
Uncertain.The recorded classification is uncertain significance.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is ClinGen PTPN11 VCEP v2.3.0. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
In a published functional study, SHP-2 phosphatase assays showed increased activity for Noonan syndrome-associated PTPN11 mutants including p.Tyr63Cys, consistent with a gain-of-function effect. The RASopathy VCEP lists SHP-2 phosphatase activity as an approved PTPN11 assay, supporting PS3 at the supporting level.
Computational evidence supports a deleterious effect. REVEL is 0.955, which is above the PTPN11 VCEP PP3 threshold of 0.7; BayesDel is 0.482421; and SpliceAI predicts no significant splice impact with a maximum delta score of 0.03, supporting a missense rather than splice-driven interpretation.
Expert panel ClinGen RASopathy Variant Curation Expert Panel classified as Pathogenic.
No benign criterion marked as applied in the recorded assessment.
ClinGen RASopathy Expert Panel Specifications to the ACMG/AMP Variant Interpretation Guidelines for PTPN11 Version 2.3.0 v2.3.0 criteria-combination framework was evaluated deterministically with applied criteria: PS3 supporting, PP3 supporting, PP5 supporting; no rule matched the adjudicated criteria.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 14 / 1,613,144 alleles. Recorded AF 8.6787e-06. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 1.19517e-05; MAF= 0.00120%, 3/251010 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 5.43656e-05; MAF= 0.00544%, 1/18394 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.030. Refer to the recorded PP3/BP4 rationale for interpretation.
50 Pathogenic · 1 pathogenic · 1 Uncertain significance.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Gain-of-function; curated oncogenicity label: Likely Oncogenic.
This variant has previously been reported in somatic cancers (COSMIC; COSV61007856, n = 6 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under ClinGen PTPN11 VCEP v2.3.0, with the data and sources behind each one.
28 criteria with recorded statuses: 3 met · 6 not met · 9 not assessed · 10 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
The PTPN11 c.188A>G (p.Tyr63Cys) variant has been reported in ClinVar as pathogenic, including an expert panel assertion from the ClinGen RASopathy Variant Curation Expert Panel.
This variant is present at very low frequency in gnomAD, with AF 0.00120% in v2.1 and AF 0.00087% in v4.1, which is below the RASopathy BA1 and BS1 thresholds but does not meet the PTPN11 VCEP requirement for PM2 because the variant is not absent from controls.
In a published functional study, SHP-2 phosphatase assays showed increased activity for Noonan syndrome-associated PTPN11 mutants including p.Tyr63Cys, and the RASopathy VCEP lists this assay type as an approved functional assay for PTPN11, supporting a gain-of-function effect.
Computational evidence supports a deleterious missense effect, with REVEL 0.955 above the PTPN11 VCEP PP3 threshold of 0.7, BayesDel 0.482421, and SpliceAI showing no significant splice impact with a maximum delta score of 0.03.
No criteria match.
PS3 Supporting: one approved assay. PS3 Moderate: two or more different approved assays.
For missense variants, PP3 applies when REVEL is at least 0.7.
Same amino acid change as a previously established pathogenic variant in PTPN11 regardless of nucleotide change.
PM2 Supporting requires absence from controls in gnomAD.
PM5 Moderate requires one pathogenic or likely pathogenic residue change at the same codon; PM5 Strong requires two different pathogenic or likely pathogenic residue changes at the same codon observed in at least five probands.
BA1 applies when the gnomAD filtering allele frequency is at least 0.05%.
BS1 applies when the gnomAD filtering allele frequency is at least 0.025%.
For missense variants, BP4 applies when REVEL is at most 0.3.
RASopathy VCEP de novo point system: Moderate at 1 point, Strong at 2 points, Very Strong at 4 points.
PS4 Supporting at 1 point, Moderate at 3 points, Strong at 5 points.
RASopathy VCEP de novo point system: Supporting at 0.5 point, Moderate at 1 point, Strong at 2 points.
PP1 Supporting requires at least 3 informative meioses, Moderate at least 5, Strong at least 7.
PP2 applies when the gnomAD missense z score is greater than 3.09.
BS2 uses a point-based unaffected observation framework in the RASopathy specification.
BS4 Strong requires one informative meiosis in the RASopathy specification.
BP2 uses a point-based framework in the RASopathy specification.
BP5 uses a point-based framework in the RASopathy specification.
PTPN11 RASopathy VCEP: PVS1 not applicable.
PM1 applies to listed critical domain residues but is not applicable to specific amino acid residues; see PM5.
PTPN11 RASopathy VCEP: PM3 not applicable.
PM4 applies to in-frame indels in non-repeat regions and stop-loss variants.
PTPN11 RASopathy VCEP: PP4 not applicable.
PTPN11 RASopathy VCEP: BS3 not applicable.
For RASopathies, BP1 is reserved for truncating variants in genes without established loss-of-function correlation to disease.
PTPN11 RASopathy VCEP: BP3 not applicable.
PTPN11 RASopathy VCEP: BP6 not applicable.
BP7 applies to synonymous, certain intronic, or non-coding variants with no predicted splice impact.
Every interpreted variant in PTPN11, mapped onto the exon structure of NM_001330437.1. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| East Asian1 / 44,888 | 2.2e-05 |
| Admixed American1 / 59,982 | 1.7e-05 |
| European (Finnish)1 / 64,040 | 1.6e-05 |
| South Asian1 / 91,062 | 1.1e-05 |
| European (non-Finnish)10 / 1,179,260 | 8.5e-06 |
| East Asian1 / 18,394 | 5.4e-05 |
| Admixed American1 / 34,588 | 2.9e-05 |
| European (non-Finnish)1 / 113,318 | 8.8e-06 |
This variant is present in gnomAD v4.1 (AF= 8.6787e-06; MAF= 0.00087%, 14/1613144 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 2.22777e-05; MAF= 0.00223%, 1/44888 alleles, homozygotes = 0); grpmax FAF= 4.29e-06.
This variant is present in gnomAD v2.1 (AF= 1.19517e-05; MAF= 0.00120%, 3/251010 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 5.43656e-05; MAF= 0.00544%, 1/18394 alleles, homozygotes = 0).
For missense variants, PP3 applies when REVEL is at least 0.7.
For missense variants, BP4 applies when REVEL is at most 0.3.
BP7 applies to synonymous, certain intronic, or non-coding variants with no predicted splice impact.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.03). REVEL score = 0.955. BayesDel score = 0.482421.
10 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 8.6787e-06; MAF= 0.00087%, 14/1613144 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 2.22777e-05; MAF= 0.00223%, 1/44888 alleles, homozygotes = 0); grpmax FAF= 4.29e-06.
This variant is present in gnomAD v2.1 (AF= 1.19517e-05; MAF= 0.00120%, 3/251010 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 5.43656e-05; MAF= 0.00544%, 1/18394 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Pathogenic (50 clinical laboratories) and as pathogenic (1 clinical laboratory) and as Uncertain significance (1 clinical laboratory) and as Pathogenic by ClinGen RASopathy Variant Curation Expert Panel (expert panel). (ClinVarID = 13333)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.03). REVEL score = 0.955. BayesDel score = 0.482421.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Gain-of-function; curated oncogenicity label: Likely Oncogenic.
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV61007856, n = 6 times).
This variant does not lie in a statistically significant hotspot.