Starting
Initialising…
0%
PTEN
Final classification
Uncertain significance
PTEN c.745G>A · p.Val249Met
PTEN

NM_000314.8:c.745G>A (NP_000305.3:p.(Val249Met), p.(V249M)) is absent from gnomAD v2.1 and gnomAD v4.1, which is below the PTEN Expert Panel PM2 threshold of <0.00001 (0.001%) and supports PM2_Supporting.

Gene
PTEN
Transcript
NM_000314.8
HGVS · transcript:coding
NM_000314.8:c.745G>A
Consequence
N/A
GRCh38
chr10:87957963 G>A
GRCh37
chr10:89717720 G>A
Basis ACMG/AMP classification using ClinGen PTEN Expert Panel Specifications v3.2.0
ACMG/AMP classification using ClinGen PTEN Expert Panel Specifications v3.2.0
Classification rationale
PM2PP2 Uncertain significance
PTEN c.745G>A

NM_000314.8:c.745G>A (NP_000305.3:p.(Val249Met), p.(V249M)) is absent from gnomAD v2.1 and gnomAD v4.1, which is below the PTEN Expert Panel PM2 threshold of <0.00001 (0.001%) and supports PM2_Supporting.1 As a PTEN missense variant, p.(Val249Met) supports PP2 because missense variation is an established disease mechanism for this gene in the PTEN Expert Panel framework.2 In the Mighell PTEN phosphatase assay, p.Val249Met has a cumulative score of -0.30689816, which is above the PS3_Moderate threshold of <= -1.11 and below the BS3 threshold of >0, so the available PTEN-specific functional data do not support either PS3 or BS3.3 The REVEL score is 0.679, which is below the PTEN PP3 threshold of >0.7 and above the PTEN BP4 threshold of <0.5, so computational missense evidence does not support either criterion. With PM2_Supporting and PP2 met, and no additional PTEN Expert Panel pathogenic or benign criteria satisfied, PTEN p.(Val249Met) is classified as a variant of uncertain significance.4

PM2 + PP2 Uncertain significance
3 vcep_m_m_c_2
Gene diagram · NM_000314.8 · variants mapped to exon structure
PTEN NM_000314.8
Fetching transcript structure from UCSC…
Applied criteria · 2 met · select any tile
Met
Not met
Not assessed
N/A
Strength very strong supporting
Pathogenic evidence
PVS
PS
PM
PP
Benign evidence
BA
BS
BP
Rationale
Select a criterion.
Sources
Evidence used
    Gaps remaining
      Rule
      Research & evidence
      Population frequency
      gnomAD v4.1 screenshot
      gnomAD v4.1
      gnomAD v2.1 screenshot
      gnomAD v2.1
      v4.1
      Absent from gnomAD v4.1.
      v2.1
      Absent from gnomAD v2.1.
      Allele frequency by ancestry
      three datasets · side by side
      gnomAD v4.1
      Absent · 0 / ?
      0 hom
      Not observed in any ancestry group.
      gnomAD v2.1
      Absent · 0 / ?
      0 hom
      Not observed in any ancestry group.
      ClinVar screenshot
      ClinVar
      This variant has been reported in ClinVar as Uncertain significance (2 clinical laboratories).
      SpliceAI screenshot
      In silico
      SpliceAI predicts no significant splice impact for this variant (max delta score = 0.04).
      Functional / OncoKB screenshot
      Functional
      OncoKB has not reviewed this specific variant; no variant-level oncogenicity or biological effect is available. Gene-level context: PTEN, a lipid and protein phosphatase, is one of the most frequently mutated genes in cancer.
      OncoKB ↗
      COSMIC screenshot
      COSMIC
      Cancer hotspots screenshot
      Cancer hotspots
      Somatic evidence
      COSMIC
      This variant has previously been reported in somatic cancers (COSMIC; COSV64304069, n = 1 times).
      Hotspots
      This variant does not lie in a statistically significant cancer hotspot.
      Sources & reference links
      6Sources
      CSpec VCEP
      ClinVar
      gnomAD v2.1
      gnomAD v4.1
      SpliceAI
      OncoKB