A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.
The following ENZYME entries belong to class 1.8.3.-:
18.104.22.168 Sulfite oxidase 22.214.171.124 Thiol oxidase 126.96.36.199 Glutathione oxidase 188.8.131.52 Methanethiol oxidase 184.108.40.206 Prenylcysteine oxidase 220.127.116.11 Farnesylcysteine lyase 18.104.22.168 Formylglycine-generating enzyme