A biosynthetic gene cluster (BGC) is a contiguous, functionally coordinated genomic locus that encodes the enzymatic and regulatory machinery required for the biosynthesis of a specialized natural product or a defined family of structurally related metabolites. In microbial genomes, a BGC commonly includes one or more core biosynthetic genes encoding scaffold-forming enzymes, together with genes for tailoring enzymes that modify the molecular scaffold, transport proteins, pathway-specific regulators, precursor-supply functions, and, where relevant, self-resistance or immunity mechanisms [1][2]. The coordinated expression and activity of these genes direct the conversion of primary metabolites into a characteristic natural-product scaffold and its subsequent chemical diversification. BGCs are recognized as genomic units through the physical co-localization of genes whose protein products collectively constitute a biosynthetic pathway; their boundaries encompass the genes contributing directly to metabolite assembly, modification, regulation, export, or producer protection [1][3].
🔵 Microbial Natural Products and Biosynthesis • 🟣 Pharmacology • 🟡 Medicine • 🔴 Health Sciences