[Paper-level Aggregated] PMCID: PMC2837563

Evidence Type(s): Oncogenic, Functional, Predictive

Justification: Oncogenic: The K-Ras mutations, including G12V, G12D, G13D, Q61H, L19F, K117N, and A146T, were shown to have transforming potential in NIH3T3 cells, indicating their role in promoting oncogenesis. Functional: The study assessed the functional impact of K-Ras mutations through focus formation assays and GTPase activity, demonstrating that certain mutations are in the active GTP-bound conformation and influence gene expression. Predictive: The presence of specific K-Ras mutations, such as A146T and K117N, was associated with phenotypes similar to known activating mutations, suggesting their potential to predict tumor behavior and response to therapies.

Gene→Variant (gene-first): KRAS(3845):A to C KRAS(3845):Ala to Thr KRAS(3845):Arg to Gln KRAS(3845):C to T KRAS(3845):G to A KRAS(3845):Lys to Asn BRAF(673):V600E KRAS(3845):aspartic acid residue at codon 173 KRAS(3845):A146T KRAS(3845):G12C KRAS(3845):G12D KRAS(3845):G12V KRAS(3845):G13D KRAS(3845):K117N KRAS(3845):L19F KRAS(3845):R164Q KRAS(3845):Q61H KRAS(3845):Ala146Thr KRAS(3845):Arg164Gln KRAS(3845):Leu19Phe KRAS(3845):Lys117Asn BRAF(673):G57T

Genes: KRAS(3845) BRAF(673)

Variants: A to C Ala to Thr Arg to Gln C to T G to A Lys to Asn V600E aspartic acid residue at codon 173 A146T G12C G12D G12V G13D K117N L19F R164Q Q61H Ala146Thr Arg164Gln Leu19Phe Lys117Asn G57T

[Paragraph-level] PMCID: PMC2837563 Section: ABSTRACT PassageIndex: 6

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses K-Ras mutations identified in tumors, indicating that these variants contribute to tumor development or progression, particularly with reference to their phenotypes in the context of cancer. Functional: The passage describes the phenotypic effects of the K-Ras mutations, suggesting that they alter molecular or biochemical function, as evidenced by the comparison of their phenotypes to hotspot mutations and wild-type K-Ras.

Gene→Variant (gene-first): 3845:Ala146Thr 3845:Arg164Gln 3845:Leu19Phe 3845:Lys117Asn

Genes: 3845

Variants: Ala146Thr Arg164Gln Leu19Phe Lys117Asn

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 15

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the introduction of the R164Q mutation led to changes in gene expression and pathway activation, indicating that the variant alters molecular function. Oncogenic: The mention of the A146T, K117N, G13D, and Q61H mutations clustering together and influencing gene expression suggests that these somatic variants contribute to tumor development or progression.

Gene→Variant (gene-first): 3845:A146T 3845:G13D 3845:K117N 3845:L19F 3845:Q61H 3845:R164Q

Genes: 3845

Variants: A146T G13D K117N L19F Q61H R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 13

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses transcription-profiling experiments and Ras GTPase assay data, indicating that the variants alter molecular or biochemical function, particularly in relation to their clustering and phenotypic characteristics. Oncogenic: The mention of the variants being associated with distinct phenotypes and their clustering suggests that these somatic mutations contribute to tumor development or progression.

Gene→Variant (gene-first): 3845:A146T 3845:G12C 3845:G12D 3845:G12V 3845:G13D 3845:K117N 3845:L19F 3845:R164Q

Genes: 3845

Variants: A146T G12C G12D G12V G13D K117N L19F R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 11

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how specific K-Ras mutations (G12V, L19F, K117N, A146T) are in the active GTP-bound conformation, indicating that these variants alter the molecular function of the K-Ras protein. Oncogenic: The mention of K-Ras mutations being in the active GTP-bound conformation suggests that these somatic variants contribute to tumor development or progression, as they are associated with active signaling pathways in cancer.

Gene→Variant (gene-first): 3845:A146T 3845:G12V 3845:K117N 3845:L19F 3845:R164Q

Genes: 3845

Variants: A146T G12V K117N L19F R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 9

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses the transformation potential of various K-Ras mutations, indicating that these mutations contribute to tumor development as evidenced by the formation of foci in NIH3T3 cells after transfection. Functional: The study evaluates the molecular function of K-Ras mutations by assessing their ability to transform cells, which involves alterations in biochemical activity as demonstrated through focus formation assays.

Gene→Variant (gene-first): 3845:A146T 3845:G12D 3845:G12V 3845:G13D 3845:K117N 3845:L19F 3845:Q61H 3845:R164Q

Genes: 3845

Variants: A146T G12D G12V G13D K117N L19F Q61H R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 4

Evidence Type(s): Diagnostic, Oncogenic, Functional

Justification: Diagnostic: The passage discusses the identification and relative frequencies of K-Ras mutations in human colorectal tumors, indicating their association with the disease. Oncogenic: The mention of K-Ras mutations, including the V600E mutation, suggests their contribution to tumor development or progression, as they are associated with increased mutation frequency in the Ras pathway. Functional: The passage notes the predicted localization of each mutation in the functional domains of the K-Ras protein, indicating an alteration in molecular function.

Gene→Variant (gene-first): 3845:A to C 3845:Ala to Thr 3845:Arg to Gln 3845:C to T 3845:G to A 3845:Lys to Asn 673:V600E 3845:aspartic acid residue at codon 173

Genes: 3845 673

Variants: A to C Ala to Thr Arg to Gln C to T G to A Lys to Asn V600E aspartic acid residue at codon 173

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 3

Evidence Type(s): Diagnostic, Oncogenic

Justification: Diagnostic: The passage discusses the detection of specific mutations in colorectal tumors, indicating their association with the disease, which supports their use in defining or classifying the disease. Oncogenic: The mention of mutations at codon 19 (G57T, Leu19Phe) and in B-Raf (V600E) suggests that these somatic variants may contribute to tumor development, as they are found in tumor samples.

Gene→Variant (gene-first): 673:G57T 3845:Leu19Phe 673:V600E

Genes: 673 3845

Variants: G57T Leu19Phe V600E

[Paragraph-level] PMCID: PMC2837563 Section: ABSTRACT PassageIndex: 6

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses K-Ras mutations identified in tumors, indicating that these variants contribute to tumor development or progression, particularly with reference to their phenotypes in the context of cancer. Functional: The passage describes the phenotypic effects of the K-Ras mutations, suggesting that they alter molecular or biochemical function, as evidenced by the comparison of their phenotypes to hotspot mutations and wild-type K-Ras.

Gene→Variant (gene-first): 3845:Ala146Thr 3845:Arg164Gln 3845:Leu19Phe 3845:Lys117Asn

Genes: 3845

Variants: Ala146Thr Arg164Gln Leu19Phe Lys117Asn

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 15

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how the introduction of the R164Q mutation led to changes in gene expression and pathway activation, indicating that the variant alters molecular function. Oncogenic: The mention of the A146T, K117N, G13D, and Q61H mutations clustering together and influencing gene expression suggests that these somatic variants contribute to tumor development or progression.

Gene→Variant (gene-first): 3845:A146T 3845:G13D 3845:K117N 3845:L19F 3845:Q61H 3845:R164Q

Genes: 3845

Variants: A146T G13D K117N L19F Q61H R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 13

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses transcription-profiling experiments and Ras GTPase assay data, indicating that the variants alter molecular or biochemical function, particularly in relation to their clustering and phenotypic characteristics. Oncogenic: The mention of the variants being associated with distinct phenotypes and their clustering suggests that these somatic mutations contribute to tumor development or progression.

Gene→Variant (gene-first): 3845:A146T 3845:G12C 3845:G12D 3845:G12V 3845:G13D 3845:K117N 3845:L19F 3845:R164Q

Genes: 3845

Variants: A146T G12C G12D G12V G13D K117N L19F R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 11

Evidence Type(s): Functional, Oncogenic

Justification: Functional: The passage discusses how specific K-Ras mutations (G12V, L19F, K117N, A146T) are in the active GTP-bound conformation, indicating that these variants alter the molecular function of the K-Ras protein. Oncogenic: The mention of K-Ras mutations being in the active GTP-bound conformation suggests that these somatic variants contribute to tumor development or progression, as they are associated with active signaling pathways in cancer.

Gene→Variant (gene-first): 3845:A146T 3845:G12V 3845:K117N 3845:L19F 3845:R164Q

Genes: 3845

Variants: A146T G12V K117N L19F R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 9

Evidence Type(s): Oncogenic, Functional

Justification: Oncogenic: The passage discusses the transformation potential of various K-Ras mutations, indicating that these mutations contribute to tumor development as evidenced by the formation of foci in NIH3T3 cells after transfection. Functional: The study evaluates the molecular function of K-Ras mutations by assessing their ability to transform cells, which involves alterations in biochemical activity as demonstrated through focus formation assays.

Gene→Variant (gene-first): 3845:A146T 3845:G12D 3845:G12V 3845:G13D 3845:K117N 3845:L19F 3845:Q61H 3845:R164Q

Genes: 3845

Variants: A146T G12D G12V G13D K117N L19F Q61H R164Q

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 4

Evidence Type(s): Diagnostic, Oncogenic, Functional

Justification: Diagnostic: The passage discusses the identification and relative frequencies of K-Ras mutations in human colorectal tumors, indicating their association with the disease. Oncogenic: The mention of K-Ras mutations, including the V600E mutation, suggests their contribution to tumor development or progression, as they are associated with increased mutation frequency in the Ras pathway. Functional: The passage notes the predicted localization of each mutation in the functional domains of the K-Ras protein, indicating an alteration in molecular function.

Gene→Variant (gene-first): 3845:A to C 3845:Ala to Thr 3845:Arg to Gln 3845:C to T 3845:G to A 3845:Lys to Asn 673:V600E 3845:aspartic acid residue at codon 173

Genes: 3845 673

Variants: A to C Ala to Thr Arg to Gln C to T G to A Lys to Asn V600E aspartic acid residue at codon 173

[Paragraph-level] PMCID: PMC2837563 Section: RESULTS PassageIndex: 3

Evidence Type(s): Diagnostic, Oncogenic

Justification: Diagnostic: The passage discusses the detection of specific mutations in colorectal tumors, indicating their association with the disease, which supports their use in defining or classifying the disease. Oncogenic: The mention of mutations at codon 19 (G57T, Leu19Phe) and in B-Raf (V600E) suggests that these somatic variants may contribute to tumor development, as they are found in tumor samples.

Gene→Variant (gene-first): 673:G57T 3845:Leu19Phe 673:V600E

Genes: 673 3845

Variants: G57T Leu19Phe V600E