3.1.1.22	(R)-3-((R)-3-hydroxybutanoloxy)butanoate + H2O	involved in the degradation of poly-3-hydroxybutyrate (PHB)	
3.1.1.22	(R)-3-((R)-3-hydroxybutanoyloxy)3butanoate	degradation of poly-(3-hydroxybutyrate)	
3.1.1.22	additional information	hydrolyzes 3-hydroxybutyrate-dimers, trimers, tetramers, pentamers and cyclic trimers, pentamers and hexamers at a similar efficiency	
3.1.1.22	additional information	hydrolyzes exclusively 3-hydroxybutyrate-dimers and trimers, no hydrolysis of longer linear or cyclic oligomers