The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was: waiting to be named.
A well-characterised enzyme containing this domain is CAD, a cephalosporin acylase from Pseudomonas diminuta. It consists of an alpha-subunit with 169 residues and a beta-subunit with 520 residues. The enzyme is described as a bowl-shaped molecule with two knobs attached to the bowl, facing each other. The A-knob contains mostly alpha-helices, whereas the B-knob contains mostly beta-sheets. The A-knob is made up of five helices and a short beta-strand. This superfamily entry comprises structural domains similar to the alpha-helical A-knob region described in CAD.
|Domain clusters (>95% seq id):||8|
|Domain clusters (>35% seq id):||6|
|Structural Clusters (5A):||2|
|Structural Clusters (9A):||1|