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.
Catalyzing the reaction X-H + Y-H = 'X-Y'
With a disulfide as acceptor
The following ENZYME entries belong to class 1.21.4.-:
18.104.22.168 D-proline reductase 22.214.171.124 Glycine reductase 126.96.36.199 Sarcosine reductase 188.8.131.52 Betaine reductase 184.108.40.206 Tetrachlorohydroquinone reductive dehalogenase