Root: scop

Classes:

1. All alpha proteins [46456] (13)
   1. DNA/RNA-binding 3-helical bundle [46688] (1)
   2. RuvA C-terminal domain-like [46928] (1)
   3. Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases [47322] (1)
   4. EF Hand-like [47472] (1)
   5. Glutathione S-transferases, C-terminal domain [47615] (1)
   6. IHF-like DNA-binding proteins [47728] (1)
   7. SAM domain-like [47768] (1)
   8. DEATH domain [47985] (1)
   9. 6-phosphogluconate dehydrogenase C-terminal domain-like [48178] (1)
   10. Trp repressor [48294] (1)
   11. alpha-alpha superhelix [48370] (1)
   12. Skp1-Skp2 dimerisation domains [48502] (1)
   13. Non-globular all-alpha subunits of globular proteins [48661] (1)
2. All beta proteins [48724] (4)
   1. Immunoglobulin-like beta-sandwich [48725] (1)
   2. Common fold of diphtheria toxin/transcription factors/cytochrome f [49379] (1)
   3. Galactose-binding domain-like [49784] (1)
   4. SAND domain [63762] (1)
3. Alpha and beta proteins (a/b) [51349] (12)
   Mainly parallel beta sheets (beta-alpha-beta units)
   1. TIM beta/alpha-barrel [51350] (1)
   2. NAD(P)-binding Rossmann-fold domains [51734] (1)
   3. ETFP adenine nucleotide-binding domain-like [52430] (1)
   4. P-loop containing nucleotide triphosphate hydrolases [52539] (1)
   5. CoA-dependent acyltransferases [52776] (1)
   6. Thioredoxin fold [52832] (1)
   7. Resolvase-like [53040] (1)
   8. Phosphorylase/hydrolase-like [53162] (1)
   9. alpha/beta-Hydrolases [53473] (1)
   10. Cytosolic phospholipase A2 catalytic domain [53643] (1)
   11. Phosphoglucomutase, first 3 domains [53737] (1)
   12. Chelatase-like [53799] (1)
4. Alpha and beta proteins (a+b) [53931] (8)
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
   1. Microbial ribonucleases [53932] (1)
   2. Cysteine proteinases [54000] (1)
   3. FAD-linked reductases, C-terminal domain [54372] (1)
   4. Ferredoxin-like [54861] (2)
   5. Alpha-L RNA-binding motif [55173] (1)
   6. Profilin-like [55769] (2)
   7. ATP-grasp [56058] (1)
   8. Protein serine/threonine phosphatase 2C [56294] (1)
5. Multi-domain proteins (alpha and beta) [56572] (2)
   Folds consisting of two or more domains belonging to different classes
   1. Nucleotidyltransferases [56698] (1)
   2. DNA repair protein MutM (Fpg) [56735] (1)
6. Membrane and cell surface proteins and peptides [56835] (1)
   Does not include proteins in the immune system
   1. Membrane all-alpha [56868] (1)
7. Small proteins [56992] (1)
   Usually dominated by metal ligand, heme, and/or disulfide bridges
   1. C-terminal domain of ProRS [64585] (1)
8. Coiled coil proteins [57942] (0)
   Not a true class
9. Low resolution protein structures [58117] (0)
   Not a true class
10. Peptides [58231] (1)
    Peptides and fragments. Not a true class
    1. Membrane ion channel-forming peptide antibiotics containing D-aminoacids [58232] (1)
11. Designed proteins [58788] (0)
    Experimental structures of proteins with essentially non-natural sequences. Not a true class
12. Non-protein [0] (0)
    PDB entries which are theoretical models, nucleic acids, or other non-proteins