About PTEN
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 likely pathogenic. Select a step to read what it means.
Likely pathogenic.A likely pathogenic classification under the recorded framework.
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 PTEN VCEP v3.2.0. 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.
NM_000314.8:c.210-2A>G is a canonical splice acceptor site variant (AG to GG at the -2 position of intron 3). Per the PTEN VCEP PVS1 decision tree, canonical GT-AG splice site disruptions that are predicted to cause exon skipping with reading frame disruption and nonsense-mediated decay (NMD) are assigned PVS1 when the disruption is at or 5' to p.D375 (c.1121) in the biologically-relevant transcript NM_000314.8. This variant is at c.210 (intron 3 acceptor), well 5' of the c.1121 threshold; exon 4 skipping is predicted to cause a frameshift (p.Ala72Thrfs*5) with premature termination and NMD. Related variants at the same splice junction (c.210-1G>A) have been experimentally confirmed to cause exon 4 skipping (PMID:28677221).
The variant is absent from gnomAD v2.1 and v4.1 (allele frequency = 0.0000). Per the PTEN VCEP, PM2_Supporting applies when the variant is present at <0.00001 (0.001%) allele frequency in gnomAD or another large sequenced population. This variant meets that threshold as it is completely absent from all population databases examined.
No benign criterion marked as applied in the recorded assessment.
Richards et.al., 2015 - Combining rules v3.2.0 criteria-combination framework: matched Rule20 (1 Pathogenic.Very Strong + 1 Pathogenic.Supporting) with applied criteria: PVS1 very strong, PM2 supporting; maps to Likely Pathogenic.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1 allele counts were not recorded for this variant.
Absent from gnomAD v2.1.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
2 Likely pathogenic · 1 Pathogenic.
No standalone functional evidence summary is recorded in evidence_summary.functional.
This variant has previously been reported in somatic cancers (COSMIC; COSV64302273, n = 4 times).
ACMG/AMP criteria under ClinGen PTEN VCEP v3.2.0, with the data and sources behind each one.
26 criteria with recorded statuses: 2 met · 4 not met · 12 not assessed · 8 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000314.8:c.210-2A>G is a canonical splice acceptor site variant (AG>GG at the -2 position of intron 3) in PTEN, a gene where loss of function is an established mechanism for PTEN hamartoma tumor syndrome (PHTS).
Per the ClinGen PTEN VCEP v3.2.0 PVS1 decision tree, this variant qualifies for PVS1 (Very Strong): it disrupts a canonical GT-AG splice site at a position 5' to p.D375 (c.1121), is predicted to cause exon 4 skipping with frameshift (p.Ala72Thrfs*5) and nonsense-mediated decay, and affects a biologically-relevant transcript (NM_000314.8). The closely related variant c.210-1G>A at the same splice junction has been experimentally confirmed to cause exon 4 skipping (PMID:28677221).
The variant is absent from gnomAD v2.1 and v4.1, meeting the PTEN VCEP threshold for PM2_Supporting (allele frequency <0.001%).
No direct functional evidence (RNA assay, minigene, or splicing study) was identified for c.210-2A>G specifically. The Mighell et al. 2018 phosphatase activity assay (mmc2.xlsx) only covers missense variants and is not applicable to this splice variant.
SpliceAI predicts a max delta score of 0.00, which is anomalous for a canonical splice acceptor variant and may represent a lookup artifact. SpliceAI predictions should be independently verified before relying on computational splicing evidence for this variant.
ClinVar reports this variant as Likely pathogenic (2 clinical laboratories) and Pathogenic (1 clinical laboratory) under ClinVar ID 576440, with review status 'criteria provided, single submitter.' However, BP6 is not for use per PTEN VCEP, and ClinVar classifications alone are not used as independent evidence.
This variant has been observed in somatic cancers (COSMIC COSV64302273, n=4), supporting its potential role in tumorigenesis, though somatic occurrence alone is not an ACMG/AMP criterion for germline classification.
A systematic review of the five available full-text publications (PMIDs: 16199547, 28677221, 29758562, 9467011, 21194675) confirmed that none mention the exact variant NM_000314.8:c.210-2A>G. The most relevant paper (PMID:28677221) studied 34 PTEN intronic variants including c.210-1G>A at the same splice junction, but c.210-2A>G was not among the variants analyzed.
Combined evidence: PVS1 (Very Strong) + PM2_Supporting. Under the PTEN VCEP combination rules v3.2.0, this specific combination (1 Very Strong + 1 Supporting without an intermediate Moderate criterion) does not match any defined pathogenic or likely pathogenic rule. Under the generic ACMG/AMP 2015 framework (PMID:25741868), 1 Very Strong + 1 Supporting likewise does not reach the threshold for Likely Pathogenic (requires >=2 Supporting or >=1 Moderate). Using a Bayesian point system (PVS1=8, PM2=1, total=9), this falls within the Likely Pathogenic range (6-9 points). A final classification should be determined by the interpreting clinical laboratory considering the strength of the PVS1 call and the anomalous SpliceAI result.
No criteria match.
Every interpreted variant in PTEN, mapped onto the exon structure of NM_000314.8. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
Absent from gnomAD v4.1.
Absent from gnomAD v2.1.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). BayesDel score = 0.224139.
6 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.
Absent from gnomAD v4.1.
Absent from gnomAD v2.1.
This variant has been reported in ClinVar as Likely pathogenic (2 clinical laboratories) and as Pathogenic (1 clinical laboratory). (ClinVarID = 576440)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). BayesDel score = 0.224139.
This variant has previously been reported in somatic cancers (COSMIC; COSV64302273, n = 4 times).