SCOP 1.65: Family b.42.2.1: Ricin B-like

Lineage for Family b.42.2.1: Ricin B-like

1. Root: SCOP 1.65

2. Class b: All beta proteins [48724] (126 folds)

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

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

5. Family b.42.2.1: Ricin B-like [50371] (2 proteins)

Proteins:

1. Plant cytotoxin B-chain (lectin) [50372] (5 species)
   duplication: consists of two domains of this fold

   1. Species Abrus precatorius [TaxId:3816] [50374] (1 PDB entry)

   2. Species Castor bean (Ricinus communis), Ricin [TaxId:3988] [50373] (1 PDB entry)

   3. Species European mistletoe (Viscum album) [TaxId:3972] [50375] (4 PDB entries)
      different sequence variants

   4. Species Mongolian snake-gourd (Trichosanthes kirilowii), Lectin 1 [TaxId:3677] [89337] (1 PDB entry)

   5. Species Sambucus ebulus, ebulin [TaxId:28503] [50376] (4 PDB entries)

2. Xylan binding domain, CBM13 (Endo-1,4-beta-xylanase C-terminal domain) [50377] (2 species)

   1. Species Streptomyces lividans [TaxId:1916] [74958] (3 PDB entries)

   2. Species Streptomyces olivaceoviridis [TaxId:1921] [50378] (7 PDB entries)

More info for Family b.42.2.1: Ricin B-like

Timeline for Family b.42.2.1: Ricin B-like:

• Family b.42.2.1: Ricin B-like first appeared (with stable ids) in SCOP 1.55
  
• Family b.42.2.1: Ricin B-like appears in SCOP 1.63
  
• Family b.42.2.1: Ricin B-like appears in SCOP 1.67
  
• Family b.42.2.1: Ricin B-like appears in the current release, SCOPe 2.08