This entry represents a member of a biosynthetic gene cluster (BGC). This BGC (BGC0001203) is described by MIBiG as an example of the following biosynthetic classes, NRP (non-ribosomal peptide) and polyketide, in particular the clarexpoxcin biosynthetic gene cluster from uncultured bacterium AR_456 [1]. This family appears to be predominantly found in Actinobacteria.

1: Multiplexed metagenome mining using short DNA sequence tags facilitates targeted discovery of epoxyketone proteasome inhibitors. Owen JG, Charlop-Powers Z, Smith AG, Ternei MA, Calle PY, Reddy BV, Montiel D, Brady SF; Proc Natl Acad Sci U S A. 2015;112:4221-4226. PMID:25831524