1.14.99.53 lytic chitin monooxygenase chitin degradation II (Vibrio) 3.2.1.14 chitinase chitin degradation II (Vibrio) 3.2.1.52 beta-N-acetylhexosaminidase chitin degradation II (Vibrio) 3.2.1.202 endo-chitodextinase chitin degradation II (Vibrio)