13 Matching Annotations
  1. Mar 2026
    1. Molecular and Functional Characterization of Three Different Postzygotic Mutations in PIK3CA-Related Overgrowth Spectrum (PROS) Patients: Effects on PI3K/AKT/mTOR Signaling and Sensitivity to PIK3 Inhibitors

      [Paper-level Aggregated] PMCID: PMC4411002

      Evidence Type(s): Oncogenic

      Summary: Mutation: c.241 G>A; p.E81K | Summary: The mutation c.241 G>A [p.E81K] in PIK3CA is identified as a somatic variant contributing to tumor development or progression, as it was detected in various tissues of the proband but not in the blood or parents. Its presence in tumor biopsies further suggests it contributes to tumor development or progression.

      Evidence Type: Oncogenic Mutation: c.3140 A>G [p.H1047R] | Summary: The c.3140 A>G [p.H1047R] mutation was identified in primary fibroblasts and is associated with tumor development in patients with FAO.

      Evidence Type: Oncogenic Mutation: c.3140 A>T [p.H1047L] | Summary: The c.3140 A>T [p.H1047L] mutation was detected in a tissue biopsy and is implicated in tumor progression in the context of FAO.

      Gene→Variant (gene-first): PIK3CA(5290):c.241 G>A PIK3CA(5290):p.E81K NA:c.3140 A>G [p.H1047R] NA:c.3140 A>T [p.H1047L]

      Genes: PIK3CA(5290) NA

      Variants: c.241 G>A p.E81K c.3140 A>G [p.H1047R] c.3140 A>T [p.H1047L]

    2. Molecular and Functional Characterization of Three Different Postzygotic Mutations in PIK3CA-Related Overgrowth Spectrum (PROS) Patients: Effects on PI3K/AKT/mTOR Signaling and Sensitivity to PIK3 Inhibitors

      [Paper-level Aggregated] PMCID: PMC4411002

      Evidence Type(s): Predisposing

      Summary: Mutation: c.241 G>A; p.E81K | Summary: The presence of the c.241 G>A [p.E81K] mutation in the proband's tissues, along with its absence in the blood and parents, suggests it may confer inherited risk for disease, indicating a possible germline component.

      Gene→Variant (gene-first): PIK3CA(5290):c.241 G>A PIK3CA(5290):p.E81K

      Genes: PIK3CA(5290)

      Variants: c.241 G>A p.E81K

    3. Molecular and Functional Characterization of Three Different Postzygotic Mutations in PIK3CA-Related Overgrowth Spectrum (PROS) Patients: Effects on PI3K/AKT/mTOR Signaling and Sensitivity to PIK3 Inhibitors

      [Paper-level Aggregated] PMCID: PMC4411002

      Evidence Type(s): Diagnostic

      Summary: Mutation: c.241 G>A; p.E81K | Summary: The presence of the c.241 G>A [p.E81K] mutation was confirmed in biopsies, indicating its use in defining or confirming a disease or subtype.

      Evidence Type: Diagnostic

      Gene→Variant (gene-first): PIK3CA(5290):c.241 G>A PIK3CA(5290):p.E81K

      Genes: PIK3CA(5290)

      Variants: c.241 G>A p.E81K

    4. In both patients with a clinical diagnosis of FAO (patients 2 and 3), targeted deep sequencing analysis led to the identification of a PIK3CA mutation in primary fibroblasts samples only. Specifically, a c.3140 A>G [p.H1

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 16

      Evidence Type(s): Oncogenic

      Summary: Evidence Type: Oncogenic | Mutation: c.3140 A>G [p.H1047R] | Summary: The c.3140 A>G [p.H1047R] mutation was identified in primary fibroblasts and is associated with tumor development in patients with FAO. Evidence Type: Oncogenic | Mutation: c.3140 A>T [p.H1047L] | Summary: The c.3140 A>T [p.H1047L] mutation was detected in a tissue biopsy and is implicated in tumor progression in the context of FAO.

      Gene→Variant (gene-first): 5294:3140 A>T 5290:c.3140 A>G 5290:c.3140 A>T 5290:p.H1047L 5290:p.H1047R

      Genes: 5294 5290

      Variants: 3140 A>T c.3140 A>G c.3140 A>T p.H1047L p.H1047R

    5. This approach confirmed the presence of the c.241 G>A [p.E81K] mutation in the right and left leg biopsies of patient 1, with mutant allele frequencies of 9% and 21.5%, respectively (Fig 1d).

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 15

      Evidence Type(s): Diagnostic, Oncogenic

      Summary: Evidence Type: Diagnostic | Mutation: c.241 G>A; p.E81K | Summary: The presence of the c.241 G>A [p.E81K] mutation was confirmed in biopsies, indicating its use in defining or confirming a disease or subtype. Evidence Type: Oncogenic | Mutation: c.241 G>A; p.E81K | Summary: The mutation is present in tumor biopsies, suggesting it contributes to tumor development or progression.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K

    6. Mutational analysis of PIK3CA exons and adjacent intronic regions was performed by Sanger sequencing methods on genomic DNA isolated from blood samples, tissue biopsies, and cultured dermal fibroblasts. No pathogenic var

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 12

      Evidence Type(s): Oncogenic, Predisposing

      Summary: Evidence Type: Oncogenic | Mutation: c.241 G>A; p.E81K | Summary: The mutation c.241 G>A [p.E81K] in PIK3CA is identified as a somatic variant contributing to tumor development or progression, as it was detected in various tissues of the proband but not in the blood or parents, indicating its potential role in cancer. Evidence Type: Predisposing | Mutation: c.241 G>A; p.E81K | Summary: The presence of the c.241 G>A [p.E81K] mutation in the proband's tissues, along with its absence in the blood and parents, suggests it may confer inherited risk for disease, indicating a possible germline component.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K

  2. Feb 2026
    1. Molecular and Functional Characterization of Three Different Postzygotic Mutations in PIK3CA-Related Overgrowth Spectrum (PROS) Patients: Effects on PI3K/AKT/mTOR Signaling and Sensitivity to PIK3 Inhibitors

      [Paper-level Aggregated] PMCID: PMC4411002

      Evidence Type(s): Oncogenic, Functional

      Justification: Oncogenic: The presence of PIK3CA mutations, specifically c.241 G>A [p.E81K], c.3140 A>G [p.H1047R], and c.3140 A>T [p.H1047L], in patients with a clinical diagnosis of FAO suggests a role in tumorigenesis, as these mutations are associated with cancer-related pathways. Functional: The identification of specific mutations in PIK3CA and their varying frequencies in different tissue types indicates that these mutations may affect the function of the protein, contributing to the disease phenotype observed in the patients.

      Gene→Variant (gene-first): PIK3CG(5294):3140 A>T PIK3CA(5290):c.3140 A>G PIK3CA(5290):c.3140 A>T PIK3CA(5290):p.H1047L PIK3CA(5290):p.H1047R PIK3CA(5290):c.241 G>A PIK3CA(5290):p.E81K

      Genes: PIK3CG(5294) PIK3CA(5290)

      Variants: 3140 A>T c.3140 A>G c.3140 A>T p.H1047L p.H1047R c.241 G>A p.E81K

    2. In both patients with a clinical diagnosis of FAO (patients 2 and 3), targeted deep sequencing analysis led to the identification of a PIK3CA mutation in primary fibroblasts samples only. Specifically, a c.3140 A>G [p.H1

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 16

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the identification of PIK3CA mutations in patients with a clinical diagnosis of FAO, indicating that these variants are used to define or confirm the disease in these patients. Oncogenic: The PIK3CA mutations mentioned are somatic variants identified in primary fibroblasts, which suggests they contribute to tumor development or progression in the context of the patients' disease.

      Gene→Variant (gene-first): 5294:3140 A>T 5290:c.3140 A>G 5290:c.3140 A>T 5290:p.H1047L 5290:p.H1047R

      Genes: 5294 5290

      Variants: 3140 A>T c.3140 A>G c.3140 A>T p.H1047L p.H1047R

    3. This approach confirmed the presence of the c.241 G>A [p.E81K] mutation in the right and left leg biopsies of patient 1, with mutant allele frequencies of 9% and 21.5%, respectively (Fig 1d).

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 15

      Evidence Type(s): Diagnostic

      Justification: Diagnostic: The passage confirms the presence of the c.241 G>A [p.E81K] mutation in the biopsies of a patient, indicating its role in defining or confirming the disease in that individual.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K

    4. Mutational analysis of PIK3CA exons and adjacent intronic regions was performed by Sanger sequencing methods on genomic DNA isolated from blood samples, tissue biopsies, and cultured dermal fibroblasts. No pathogenic var

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 12

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the identification of the c.241 G>A [p.E81K] mutation in a specific patient, indicating its association with the patient's condition and its absence in the patient's parents, which suggests its role in defining or confirming a disease. Oncogenic: The mention of the mutation being detected in various tissues of the patient, particularly in the context of a mutational analysis, implies its potential contribution to tumor development or progression.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K

    5. In both patients with a clinical diagnosis of FAO (patients 2 and 3), targeted deep sequencing analysis led to the identification of a PIK3CA mutation in primary fibroblasts samples only. Specifically, a c.3140 A>G [p.H1

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 16

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the identification of PIK3CA mutations in patients with a clinical diagnosis of FAO, indicating that these variants are used to define or confirm the disease in these patients. Oncogenic: The PIK3CA mutations mentioned are somatic variants identified in primary fibroblasts, which suggests they contribute to tumor development or progression in the context of the patients' disease.

      Gene→Variant (gene-first): 5294:3140 A>T 5290:c.3140 A>G 5290:c.3140 A>T 5290:p.H1047L 5290:p.H1047R

      Genes: 5294 5290

      Variants: 3140 A>T c.3140 A>G c.3140 A>T p.H1047L p.H1047R

    6. This approach confirmed the presence of the c.241 G>A [p.E81K] mutation in the right and left leg biopsies of patient 1, with mutant allele frequencies of 9% and 21.5%, respectively (Fig 1d).

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 15

      Evidence Type(s): Diagnostic

      Justification: Diagnostic: The passage confirms the presence of the c.241 G>A [p.E81K] mutation in the biopsies of a patient, indicating its role in defining or confirming the disease in that individual.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K

    7. Mutational analysis of PIK3CA exons and adjacent intronic regions was performed by Sanger sequencing methods on genomic DNA isolated from blood samples, tissue biopsies, and cultured dermal fibroblasts. No pathogenic var

      [Paragraph-level] PMCID: PMC4411002 Section: RESULTS PassageIndex: 12

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the identification of the c.241 G>A [p.E81K] mutation in a specific patient, indicating its association with the patient's condition and its absence in the patient's parents, which suggests its role in defining or confirming a disease. Oncogenic: The mention of the mutation being detected in various tissues of the patient, particularly in the context of a mutational analysis, implies its potential contribution to tumor development or progression.

      Gene→Variant (gene-first): 5290:c.241 G>A 5290:p.E81K

      Genes: 5290

      Variants: c.241 G>A p.E81K