1.1.3.43	paromamine 6'-oxidase	ribostamycin biosynthesis	-	
2.4.2.49	neamine phosphoribosyltransferase	ribostamycin biosynthesis	-	
2.6.1.93	neamine transaminase	ribostamycin biosynthesis	-	
3.1.3.88	5''-phosphoribostamycin phosphatase	ribostamycin biosynthesis	-