Table 1.
Proteins for cellular uptake studies
| Protein | Molecular Weight (kDa) | Amino Acids | pI (unlabelled protein) |
|---|---|---|---|
| Avidin-FITC | 66–68 | 512 | 10–10.5 |
| GFP | 26.9 | 238 | 5.3 |
| Streptavidin-Texas Red® | 52.8 | 4 × 159 | 4.5 |
| β-galactosidase-Alexa Fluor® 488 | 540 | 1171 | 4.8 |
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