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    1. Strong functional data for pathogenicity or neutrality classify BRCA2 DNA-binding-domain variants of uncertain significance

      [Paper-level Aggregated] PMCID: PMC8008494

      Evidence Type(s): Functional, Oncogenic, Predictive

      Justification: Functional: The text describes a functional assay (HDR) that evaluates the impact of various variants on protein function, indicating that certain variants resulted in loss of function or maintained functionality based on their HDR scores. Oncogenic: The mention of variants being associated with probabilities of pathogenicity >0.99 suggests that these variants may contribute to cancer development, indicating their potential oncogenic nature. Predictive: The text discusses the ability of certain variants to influence sensitivity to PARP inhibitors, which can be used to predict treatment responses in BRCA2-deficient cell lines.

      Gene→Variant (gene-first): NA:2619 from Trp to Gly BRCA2(675):2723 from Asp to Asn APRT(353):7522G>A APRT(353):7807G>T APRT(353):7874G>A APRT(353):7879A>G NA:Leu3180 APRT(353):Phe/Asn APRT(353):c.7522G>C BRCA2(675):c.7880T>A BRCA2(675):c.9370A>C BRCA2(675):c.9371A>T BRCA2(675):c.9539T>C BRCA2(675):p.Ala2603Ser BRCA2(675):p.Arg2625Lys BRCA2(675):p.Asn3124His APRT(353):p.Gly2508Arg BRCA2(675):p.Gly2508Ser BRCA2(675):p.Ile2627Val BRCA2(675):c.8723T>G BRCA2(675):c.8905G>A BRCA2(675):p.Val2908Gly BRCA2(675):p.Val2969Met

      Genes: NA BRCA2(675) APRT(353)

      Variants: 2619 from Trp to Gly 2723 from Asp to Asn 7522G>A 7807G>T 7874G>A 7879A>G Leu3180 Phe/Asn c.7522G>C c.7880T>A c.9370A>C c.9371A>T c.9539T>C p.Ala2603Ser p.Arg2625Lys p.Asn3124His p.Gly2508Arg p.Gly2508Ser p.Ile2627Val c.8723T>G c.8905G>A p.Val2908Gly p.Val2969Met

    2. The HDR functional dataset was completely concordant with three other functional studies that evaluated the ability for a human BRCA2 variant to restore survival of Brca2 null mouse embryonic stem cells (Table S1). In an

      [Paragraph-level] PMCID: PMC8008494 Section: RESULTS PassageIndex: 9

      Evidence Type(s): Predictive, Functional

      Justification: Predictive: The passage discusses the sensitivity of specific BRCA2 variants to PARP inhibitors, indicating a correlation with response to therapy. Functional: The passage describes how the BRCA2 variants influence the ability to restore survival in mouse embryonic stem cells and their functional classification based on drug sensitivity assays.

      Gene→Variant (gene-first): 675:c.8723T>G 675:c.8905G>A 675:p.Val2908Gly 675:p.Val2969Met

      Genes: 675

      Variants: c.8723T>G c.8905G>A p.Val2908Gly p.Val2969Met

    3. HDR assay results are provided for 53 variants, along with previously reported data for 199 variants, for a total of 252 missense variants (Figure 1; Table 1; Table S1). Among the 252 variants, 90 were considered non-fun

      [Paragraph-level] PMCID: PMC8008494 Section: RESULTS PassageIndex: 3

      Evidence Type(s): Functional, Oncogenic

      Justification: Functional: The passage discusses how specific variants alter the function of the protein, indicating that certain amino acid substitutions result in loss of function or maintain functionality, which is characteristic of functional evidence. Oncogenic: The context of the variants being associated with loss of function in a cancer-related gene (BRCA2) suggests that these somatic variants contribute to tumor development or progression.

      Gene→Variant (gene-first): NA:2619 from Trp to Gly 675:2723 from Asp to Asn 353:7522G>A 353:7807G>T 353:7874G>A 353:7879A>G NA:Leu3180 353:Phe/Asn 353:c.7522G>C 675:c.7880T>A 675:c.9370A>C 675:c.9371A>T 675:c.9539T>C 675:p.Ala2603Ser 675:p.Arg2625Lys 675:p.Asn3124His 353:p.Gly2508Arg 675:p.Gly2508Ser 675:p.Ile2627Val

      Genes: NA 675 353

      Variants: 2619 from Trp to Gly 2723 from Asp to Asn 7522G>A 7807G>T 7874G>A 7879A>G Leu3180 Phe/Asn c.7522G>C c.7880T>A c.9370A>C c.9371A>T c.9539T>C p.Ala2603Ser p.Arg2625Lys p.Asn3124His p.Gly2508Arg p.Gly2508Ser p.Ile2627Val

    4. The HDR functional dataset was completely concordant with three other functional studies that evaluated the ability for a human BRCA2 variant to restore survival of Brca2 null mouse embryonic stem cells (Table S1). In an

      [Paragraph-level] PMCID: PMC8008494 Section: RESULTS PassageIndex: 9

      Evidence Type(s): Predictive, Functional

      Justification: Predictive: The passage discusses the sensitivity of specific BRCA2 variants to PARP inhibitors, indicating a correlation with response to therapy. Functional: The passage describes how the BRCA2 variants influence the ability to restore survival in mouse embryonic stem cells and their functional classification based on drug sensitivity assays.

      Gene→Variant (gene-first): 675:c.8723T>G 675:c.8905G>A 675:p.Val2908Gly 675:p.Val2969Met

      Genes: 675

      Variants: c.8723T>G c.8905G>A p.Val2908Gly p.Val2969Met

    5. HDR assay results are provided for 53 variants, along with previously reported data for 199 variants, for a total of 252 missense variants (Figure 1; Table 1; Table S1). Among the 252 variants, 90 were considered non-fun

      [Paragraph-level] PMCID: PMC8008494 Section: RESULTS PassageIndex: 3

      Evidence Type(s): Functional, Oncogenic

      Justification: Functional: The passage discusses how specific variants alter the function of the protein, indicating that certain amino acid substitutions result in loss of function or maintain functionality, which is characteristic of functional evidence. Oncogenic: The context of the variants being associated with loss of function in a cancer-related gene (BRCA2) suggests that these somatic variants contribute to tumor development or progression.

      Gene→Variant (gene-first): NA:2619 from Trp to Gly 675:2723 from Asp to Asn 353:7522G>A 353:7807G>T 353:7874G>A 353:7879A>G NA:Leu3180 353:Phe/Asn 353:c.7522G>C 675:c.7880T>A 675:c.9370A>C 675:c.9371A>T 675:c.9539T>C 675:p.Ala2603Ser 675:p.Arg2625Lys 675:p.Asn3124His 353:p.Gly2508Arg 675:p.Gly2508Ser 675:p.Ile2627Val

      Genes: NA 675 353

      Variants: 2619 from Trp to Gly 2723 from Asp to Asn 7522G>A 7807G>T 7874G>A 7879A>G Leu3180 Phe/Asn c.7522G>C c.7880T>A c.9370A>C c.9371A>T c.9539T>C p.Ala2603Ser p.Arg2625Lys p.Asn3124His p.Gly2508Arg p.Gly2508Ser p.Ile2627Val