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.
Acting on a heme group of donors
The following ENZYME entries belong to class 1.9.-.-:
220.127.116.11 Cytochrome-c oxidase 18.104.22.168 Transferred entry: 22.214.171.124 126.96.36.199 Nitrate reductase (cytochrome) 188.8.131.52 Iron--cytochrome-c reductase 184.108.40.206 Transferred entry: 220.127.116.11