Folds:

1. i.1: Ribosome and ribosomal fragments [58118] (1 superfamily)

2. i.2: Helicase [58135] (1 superfamily)

3. i.3: ATP synthase [58140] (1 superfamily)

4. i.4: Electron transport chains [58146] (1 superfamily)

5. i.5: Photosystems [58155] (1 superfamily)

6. i.6: Viruses and virus-receptor complexes [58162] (1 superfamily)

7. i.7: Reovirus components [58175] (1 superfamily)

8. i.8: RNA polymerase [58180] (1 superfamily)

9. i.9: Blood clotting [58187] (1 superfamily)

10. i.10: Microtubule complexes [58193] (1 superfamily)

11. i.11: Computational models partly based on experimental data [58198] (1 superfamily)

12. i.12: Proteins of incorrect, partial and unknown sequence [58207] (1 superfamily)

13. i.14: Bacteriophage HK97 procapsid (prohead II) [64611] (1 superfamily)

14. i.15: Muscle protein complexes [64616] (1 superfamily)

15. i.16: GroE chaperon [69998] (1 superfamily)

16. i.17: Virus envelope proteins [75718] (1 superfamily)

17. i.18: Membrane ion ATPase [82940] (1 superfamily)

18. i.19: Bacteriophage T4 3D cryo-EM reconstruction [103674] (1 superfamily)

19. i.20: Ep-cadherin [103681] (1 superfamily)

20. i.21: Transferrin receptor-transferrin complex [103686] (1 superfamily)

21. i.22: Signal recognition particle (SRP) complex [103691] (1 superfamily)

22. i.23: clathrin assemblies [111484] (1 superfamily)

23. i.24: anthrax toxin protective antigen-receptor complex [111489] (1 superfamily)

24. i.25: Collagen fibre [144296] (1 superfamily)

25. i.26: Fatty acid synthase [144301] (1 superfamily)

More info for Class i: Low resolution protein structures

Timeline for Class i: Low resolution protein structures:

• Class i: Low resolution protein structures first appeared (with stable ids) in SCOP 1.55
  
• Class i: Low resolution protein structures appears in SCOPe 2.06
  
• Class i: Low resolution protein structures appears in the current release, SCOPe 2.08