maftools

maftools provides analysis, summarization, and visualization of Mutation Annotation Format (MAF) files to enable exploration of somatic and germline variant landscapes in cancer genomics studies.

Key Features:

• MAF file support: Processes Mutation Annotation Format (MAF) files containing somatic and germline variant calls and associated annotations.
• Function suite for cancer genomics: Offers an extensive set of functions for common cancer genomics tasks, including processing and summarization of cohort-level variant data.
• Fast data manipulation: Integrates the data.table R package for efficient handling and summarization of large MAF datasets.
• Publication-quality visualization: Uses ggplot2 to generate customizable, high-quality visualizations of variant data.
• S4-based data representation: Represents genomic data using R's S4 classes for structured, object-oriented data handling.

Scientific Applications:

• Large-scale cancer sequencing analysis: Characterizes variants across large cohorts from sequencing studies using MAF-formatted data.
• Cohort-level variant landscape exploration: Enables exploration and summarization of somatic and germline variant distributions across samples.
• Biomarker and therapeutic target identification: Supports identification of potential biomarkers and therapeutic targets through cohort variant analyses and visualizations.

Methodology:

Implements R-based data processing using data.table for fast MAF manipulation, ggplot2 for visualization, and S4 classes for data representation.