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Physical dimensions protein in size ladder
| Molecule | Molecular weight of intact molecule |
Structure | Shape | Size (nm) | Reduced molecular weight |
|---|---|---|---|---|---|
| carbonic anhydrase | 37,000 | monomer | globular | 4 32 | 37,000 |
| ovalbumin | 45,000 | monomer | globular | 6.5 33 | 45,000 |
| albumin | 67,000 | monomer | globular | 7.5 34 | 67,000 |
| phosphorylase-b | 195,000 | homodimer | globular | 8.3 35 | 97,000 |
| β-galactosidase | 495,000 | homotetramer | globular | 17 36 | 116,000 |
| myosin II heavy chain | 400,000 | homodimer | linear | 160 × 10 37 | 200,000 |
