SCOP 1.75: Fold b.42: beta-Trefoil

Lineage for Fold b.42: beta-Trefoil

1. Root: SCOP 1.75

2. Class b: All beta proteins [48724] (174 folds)

3. Fold b.42: beta-Trefoil [50352] (8 superfamilies)
   barrel, closed; n=6, S=12; and a hairpin triplet; meander
   duplication: has internal pseudo threefold symmetry

Superfamilies:

1. b.42.1: Cytokine [50353] (2 families)

2. b.42.2: Ricin B-like lectins [50370] (3 families)

3. b.42.3: Agglutinin [50382] (1 family)
   this superfamily is distinct from the ricin B-like lectin superfamily

4. b.42.4: STI-like [50386] (2 families)

5. b.42.5: Actin-crosslinking proteins [50405] (2 families)

6. b.42.6: MIR domain [82109] (1 family)

7. b.42.7: DNA-binding protein LAG-1 (CSL) [110217] (1 family)
   contains rudiment hairpin triplet lacking one hairpin

8. b.42.8: AbfB domain [110221] (1 family)

More info for Fold b.42: beta-Trefoil

Timeline for Fold b.42: beta-Trefoil:

• Fold b.42: beta-Trefoil first appeared (with stable ids) in SCOP 1.55
  
• Fold b.42: beta-Trefoil appears in SCOP 1.73
  
• Fold b.42: beta-Trefoil appears in SCOPe 2.01
  
• Fold b.42: beta-Trefoil appears in the current release, SCOPe 2.08