Lineage for Superfamily b.154.1: Agglutinin HPA-like

1. Root: SCOPe 2.08

2. Class b: All beta proteins [48724] (180 folds)

3. Fold b.154: HPA-like [141085] (1 superfamily) sandwich, 6 strands in 2 sheets; jelly-roll (truncated); also includes the pending PCSK9 V domain-like superfamily (the C-terminal domains of 2p4e and 2pmw)

4. Superfamily b.154.1: Agglutinin HPA-like [141086] (1 family) forms similar trimers to the PCSK9 V domain; strand directions of the subunit beta-sheets are parallel to the three-fold symmetry axis;