ID 4.2.1.112 DE acetylene hydratase. AN AHy. CA acetaldehyde = acetylene + H2O. CC -!- The tungsten center binds a water molecule that is activated by an CC adjacent aspartate residue, enabling it to attack acetylene bound in CC a distinct hydrophobic pocket. CC -!- Ethylene cannot act as a substrate. DR Q71EW5, AHY_SYNAC ; //