[Paper-level Aggregated] PMCID: PMC7820803

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The study demonstrates that the p.Ala636Pro variant leads to a significant loss of MSH2 function, as evidenced by the inability of cells expressing this variant to restore sensitivity to 6-thioguanine, indicating a functional impairment in mismatch repair. Oncogenic: The p.Ala636Pro variant is described as a pathogenic founder allele, suggesting its role in contributing to cancer predisposition, particularly in the context of MMR deficiency associated with Lynch syndrome.

Gene→Variant (gene-first): MSH2(4436):p.Ala636Pro

Genes: MSH2(4436)

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 13

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the variant p.Ala636Pro scored as deleterious in an assay, indicating that it alters molecular or biochemical function. Oncogenic: The context of the passage suggests that the variant is associated with bi-allelic MMR loss, which contributes to tumor development in pediatric-onset cancer syndromes, indicating its role in oncogenesis.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 7

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses the selection of MSH2 mutant cells, specifically the p.Ala636Pro variant, in the context of MMR deficiency, indicating that this somatic variant contributes to tumor development or progression. Functional: The passage describes the behavior of the p.Ala636Pro variant in a selective environment, suggesting that it alters the molecular function of the MSH2 protein, as evidenced by the enrichment of these cells under selective conditions.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 4

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the p.Ala636Pro variant affects the sensitivity to 6-thioguanine, indicating that it alters the molecular function of MSH2 in the context of mismatch repair. Oncogenic: The passage implies that the p.Ala636Pro variant is pathogenic and contributes to the resistance of cells to 6-thioguanine, suggesting a role in tumor development or progression.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 3

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the p.Ala636Pro variant affects the expression levels of MSH2 protein, indicating that it alters molecular function by being barely detectable compared to wild-type MSH2, which demonstrates its destabilizing effect. Oncogenic: The passage describes the use of the p.Ala636Pro variant in a model to disrupt mismatch repair (MMR), suggesting that this somatic variant contributes to tumor development or progression by affecting MSH2 function.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 13

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the variant p.Ala636Pro scored as deleterious in an assay, indicating that it alters molecular or biochemical function. Oncogenic: The context of the passage suggests that the variant is associated with bi-allelic MMR loss, which contributes to tumor development in pediatric-onset cancer syndromes, indicating its role in oncogenesis.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 7

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses the selection of MSH2 mutant cells, specifically the p.Ala636Pro variant, in the context of MMR deficiency, indicating that this somatic variant contributes to tumor development or progression. Functional: The passage describes the behavior of the p.Ala636Pro variant in a selective environment, suggesting that it alters the molecular function of the MSH2 protein, as evidenced by the enrichment of these cells under selective conditions.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 4

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the p.Ala636Pro variant affects the sensitivity to 6-thioguanine, indicating that it alters the molecular function of MSH2 in the context of mismatch repair. Oncogenic: The passage implies that the p.Ala636Pro variant is pathogenic and contributes to the resistance of cells to 6-thioguanine, suggesting a role in tumor development or progression.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro

[Paragraph-level] PMCID: PMC7820803 Section: RESULTS PassageIndex: 3

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the p.Ala636Pro variant affects the expression levels of MSH2 protein, indicating that it alters molecular function by being barely detectable compared to wild-type MSH2, which demonstrates its destabilizing effect. Oncogenic: The passage describes the use of the p.Ala636Pro variant in a model to disrupt mismatch repair (MMR), suggesting that this somatic variant contributes to tumor development or progression by affecting MSH2 function.

Gene→Variant (gene-first): 4436:p.Ala636Pro

Genes: 4436

Variants: p.Ala636Pro