Researchers use gene databases in multiple ways: - Gene Identification and Annotation: Databases help identify new cancer-related genes and annotate their functions. - Mutation Analysis: They enable the study of somatic mutations in cancer cells, providing insights into tumorigenesis. - Comparative Genomics: By comparing genetic data across different species, researchers can identify conserved pathways involved in cancer. - Drug Target Discovery: Databases help identify potential drug targets by revealing the genetic basis of cancer.