This is the catalytic domain of alcohol dehydrogenases. Many of them contain an inserted zinc binding domain. This domain has a GroES-like structure [1-2].

1: Structural classification of proteins: new superfamilies. Murzin AG; Curr Opin Struct Biol 1996;6:386-394. PMID:8804825

2: Conserved structural features and sequence patterns in the GroES fold family. Taneja B, Mande SC; Protein Eng 1999;12:815-818. PMID:10556240