Extended Data Fig. 1: Schematic diagram of the CSP biosynthetic pathway in Blattella germanica.
From: A single gene integrates sex and hormone regulators into sexual attractiveness

A blend of six structurally related CSP components (in black dashed box) share a common biosynthetic pathway, in which the methyl ketones are formed by age- and sex-specific hydroxylation (in red text, the rate-limiting step possibly mediated by a cytochrome P450 system) of the 3,11-dimethyl alkane precursors and subsequent oxidation13. LCFA, long-chain fatty acid.