6.3.2.5 physiological function gene coaBC is essential, but Escherichia coli can effectively metabolize pantethine to bypass the requirement for coaBC -, 715382 6.3.2.5 physiological function gene coaBC is essential. Contrary to Escherichia coli, Pseudomonas aeruginosa cannot metabolize pantethine to bypass the requirement for coaBC 715382