PDB Statistics: PDB Data Distribution by Molecular Weight (Structure)
All macromolecules, small molecules, and ions are included, except for water molecules. Molecular weight is calculated for all atoms, including those not observed in the experiment. Molecular weight of all non-water atoms in the asymmetric unit.
| Molecular Weight (Daltons) | Number of Entries |
|---|---|
| < 20K | 36,742 |
| 20K - 40K | 55,170 |
| 40K - 60K | 40,411 |
| 60K - 80K | 26,504 |
| 80K - 100K | 18,160 |
| 100K - 120K | 13,124 |
| 120K - 140K | 9,446 |
| 140K - 160K | 7,994 |
| 160K - 180K | 6,450 |
| 180K - 200K | 4,817 |
| 200K - 220K | 4,132 |
| 220K - 240K | 3,237 |
| 240K - 260K | 2,665 |
| 260K - 280K | 2,275 |
| 280K - 300K | 1,825 |
| 300K - 320K | 1,520 |
| 320K - 340K | 1,409 |
| 340K - 360K | 1,391 |
| 360K - 380K | 1,193 |
| >= 380K | 18,716 |
