10 Matching Annotations
  1. Mar 2026
    1. Microsatellite Instability-Related ACVR2A Mutations Partially Account for Decreased Lymph Node Metastasis in MSI-H Gastric Cancers

      [Paper-level Aggregated] PMCID: PMC7211323

      Evidence Type(s): Functional

      Summary: Mutation: c.285delA | Summary: The mutation c.285delA results in no detectable protein band, indicating that it alters the molecular function of the ACVR2A gene product, likely leading to degradation through nonsense-mediated decay.

      Evidence Type: Functional Mutation: 1310AA | Summary: The mutation 1310AA is associated with the production of truncated ACVR2A protein, suggesting that it alters the molecular function of the ACVR2A gene product.

      Gene→Variant (gene-first): ACVR2A(92):c.285delA ACVR2A(92):1310AA

      Genes: ACVR2A(92)

      Variants: c.285delA 1310AA

    2. Microsatellite Instability-Related ACVR2A Mutations Partially Account for Decreased Lymph Node Metastasis in MSI-H Gastric Cancers

      [Paper-level Aggregated] PMCID: PMC7211323

      Evidence Type(s): Oncogenic

      Summary: Mutation: 1310delA | Summary: The mutation 1310delA is identified as a hotspot mutation in the ACVR2A gene, contributing to tumor development in gastric cancer patients.

      Evidence Type: Oncogenic Mutation: c.1309-1310delAA | Summary: The mutation c.1309-1310delAA is a hotspot mutation in the ACVR2A gene, associated with tumor progression in gastric cancer.

      Evidence Type: Oncogenic Mutation: c.285delA | Summary: The mutation c.285delA is recognized as a hotspot mutation in the ACVR2A gene, playing a role in the development of gastric cancer.

      Evidence Type: Oncogenic Mutation: p. D96Tfs54 | Summary: The mutation p. D96Tfs54 is a frameshift mutation in the ACVR2A gene, contributing to oncogenic processes in gastric cancer.

      Gene→Variant (gene-first): ACVR2A(92):1310delA ACVR2A(92):c.1309-1310delAA ACVR2A(92):c.285delA ACVR2A(92):p. D96Tfs*54

      Genes: ACVR2A(92)

      Variants: 1310delA c.1309-1310delAA c.285delA p. D96Tfs*54

    3. Microsatellite Instability-Related ACVR2A Mutations Partially Account for Decreased Lymph Node Metastasis in MSI-H Gastric Cancers

      [Paper-level Aggregated] PMCID: PMC7211323

      Evidence Type(s): Diagnostic

      Summary: Mutation: 1309-1310delAA | Summary: The mutation 1309-1310delAA is associated with the MSI-H subtype of gastric cancers, indicating its role in classifying the disease.

      Evidence Type: Diagnostic Mutation: c.1310delA | Summary: The mutation c.1310delA is linked to the MSI-H subtype of gastric cancers, supporting its use in disease classification.

      Evidence Type: Diagnostic Mutation: c.285delA | Summary: The mutation c.285delA is associated with the MSI-H subtype of gastric cancers, indicating its relevance in disease classification.

      Gene→Variant (gene-first): ACVR2A(92):1309-1310delAA ACVR2A(92):c.1310delA ACVR2A(92):c.285delA

      Genes: ACVR2A(92)

      Variants: 1309-1310delAA c.1310delA c.285delA

    4. We conducted in vitro experiments to verify the role of ACVR2A in the migration and proliferation of GC cells. First, we sequenced exon 3 and exon 10 of the ACVR2A gene in one human normal immortalized gastric mucosal ce

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 11

      Evidence Type(s): Functional

      Summary: Evidence Type: Functional | Mutation: c.285delA | Summary: The mutation c.285delA results in no detectable protein band, indicating that it alters the molecular function of the ACVR2A gene product, likely leading to degradation through nonsense-mediated decay. Evidence Type: Functional | Mutation: 1310AA | Summary: The mutation 1310AA is associated with the production of truncated ACVR2A protein, suggesting that it alters the molecular function of the ACVR2A gene product.

      Gene→Variant (gene-first): 92:1310AA 92:c.285delA

      Genes: 92

      Variants: 1310AA c.285delA

    5. To clarify mutations of ACVR2A in different populations, we detected gene mutations in 157 Chinese GC patients by WES and downloaded mutational and clinical data from the TCGA database. Our sequencing data showed that th

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 9

      Evidence Type(s): Oncogenic

      Summary: Evidence Type: Oncogenic | Mutation: 1310delA | Summary: The mutation 1310delA is identified as a hotspot mutation in the ACVR2A gene, contributing to tumor development in gastric cancer patients. Evidence Type: Oncogenic | Mutation: c.1309-1310delAA | Summary: The mutation c.1309-1310delAA is a hotspot mutation in the ACVR2A gene, associated with tumor progression in gastric cancer. Evidence Type: Oncogenic | Mutation: c.285delA | Summary: The mutation c.285delA is recognized as a hotspot mutation in the ACVR2A gene, playing a role in the development of gastric cancer. Evidence Type: Oncogenic | Mutation: p. D96Tfs54 | Summary: The mutation p. D96Tfs54 is a frameshift mutation in the ACVR2A gene, contributing to oncogenic processes in gastric cancer.

      Gene→Variant (gene-first): 92:1310delA 92:c.1309-1310delAA 92:c.285delA 92:p. D96Tfs*54

      Genes: 92

      Variants: 1310delA c.1309-1310delAA c.285delA p. D96Tfs*54

    6. Analysis of TCGA data revealed that ACVR2A is the gene with the most dramatically different mutation rate between the MSI-H group of GCs and MSI-L/MSS group of GCs (75.34% VS 1.24%, p<0.001) (Table 1). The MSI-H GCs less

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 3

      Evidence Type(s): Diagnostic

      Summary: Evidence Type: Diagnostic | Mutation: 1309-1310delAA | Summary: The mutation 1309-1310delAA is associated with the MSI-H subtype of gastric cancers, indicating its role in classifying the disease. Evidence Type: Diagnostic | Mutation: c.1310delA | Summary: The mutation c.1310delA is linked to the MSI-H subtype of gastric cancers, supporting its use in disease classification. Evidence Type: Diagnostic | Mutation: c.285delA | Summary: The mutation c.285delA is associated with the MSI-H subtype of gastric cancers, indicating its relevance in disease classification.

      Gene→Variant (gene-first): 92:1309-1310delAA 92:c.1310delA 92:c.285delA

      Genes: 92

      Variants: 1309-1310delAA c.1310delA c.285delA

  2. Feb 2026
    1. Microsatellite Instability-Related ACVR2A Mutations Partially Account for Decreased Lymph Node Metastasis in MSI-H Gastric Cancers

      [Paper-level Aggregated] PMCID: PMC7211323

      Evidence Type(s): Oncogenic, Functional, Predictive

      Justification: Oncogenic: The text indicates that mutations in the ACVR2A gene, particularly c.1309-1310delAA and c.285delA, are associated with a high mutation frequency and are prevalent in MSI-H gastric cancers, suggesting a role in tumorigenesis. Functional: The in vitro experiments demonstrate that ACVR2A mutations lead to altered protein expression and stability, indicating that these mutations have functional consequences on the gene product. Predictive: The association of ACVR2A mutations with MSI-H status suggests that these mutations could predict the microsatellite instability phenotype in gastric cancer patients.

      Gene→Variant (gene-first): ACVR2A(92):1309-1310delAA ACVR2A(92):c.1310delA ACVR2A(92):c.285delA ACVR2A(92):1310AA ACVR2A(92):1310delA ACVR2A(92):c.1309-1310delAA ACVR2A(92):p. D96Tfs*54

      Genes: ACVR2A(92)

      Variants: 1309-1310delAA c.1310delA c.285delA 1310AA 1310delA c.1309-1310delAA p. D96Tfs*54

    2. We conducted in vitro experiments to verify the role of ACVR2A in the migration and proliferation of GC cells. First, we sequenced exon 3 and exon 10 of the ACVR2A gene in one human normal immortalized gastric mucosal ce

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 11

      Evidence Type(s): Functional, Oncogenic

      Justification: Functional: The passage discusses how the ACVR2A variants (including c.285delA) affect the expression and stability of the ACVR2A protein, indicating that these variants alter molecular function. Oncogenic: The context of the study involves the role of ACVR2A mutations in gastric cancer (GC) cell lines, suggesting that these somatic variants may contribute to tumor development or progression.

      Gene→Variant (gene-first): 92:1310AA 92:c.285delA

      Genes: 92

      Variants: 1310AA c.285delA

    3. To clarify mutations of ACVR2A in different populations, we detected gene mutations in 157 Chinese GC patients by WES and downloaded mutational and clinical data from the TCGA database. Our sequencing data showed that th

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 9

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the mutation rate of ACVR2A in a specific population and identifies specific mutations as frequent occurrences in gastric cancer patients, indicating their association with the disease. Oncogenic: The passage describes nonsynonymous mutations in the ACVR2A gene that lead to protein changes, specifically mentioning frameshift truncating mutations, which contribute to tumor development in gastric cancer.

      Gene→Variant (gene-first): 92:1310delA 92:c.1309-1310delAA 92:c.285delA 92:p. D96Tfs*54

      Genes: 92

      Variants: 1310delA c.1309-1310delAA c.285delA p. D96Tfs*54

    4. Analysis of TCGA data revealed that ACVR2A is the gene with the most dramatically different mutation rate between the MSI-H group of GCs and MSI-L/MSS group of GCs (75.34% VS 1.24%, p<0.001) (Table 1). The MSI-H GCs less

      [Paragraph-level] PMCID: PMC7211323 Section: RESULTS PassageIndex: 3

      Evidence Type(s): Diagnostic, Oncogenic

      Justification: Diagnostic: The passage discusses the association of specific mutations (c.1310delA, 1309-1310delAA, c.285delA) with the MSI-H subtype of gastric cancers, indicating their role in defining or classifying the disease. Oncogenic: The variants mentioned are associated with a high mutation frequency and a high MSI score, suggesting their contribution to tumor development or progression in gastric cancer.

      Gene→Variant (gene-first): 92:1309-1310delAA 92:c.1310delA 92:c.285delA

      Genes: 92

      Variants: 1309-1310delAA c.1310delA c.285delA