ReactomeContent Get Enhanced Pathway

Get enhanced pathway details from Reactome including description, literature references, GO biological process terms, and direct sub-events. Provides richer information than basic pathway lookup by including curated summaries, PubMed references, and Gene Ontology annotations. Example: R-HSA-109581 (Apoptosis) returns a detailed summation, GO:0006915 annotation, 4 sub-pathways (extrinsic, intrinsic, execution, regulation), and key literature references.