When performing binding assays, molecular biologists typically use several standard models to analyze data: Cold Spring Harbor Laboratory Binding and Kinetics for Molecular Biologists
There are several key concepts in binding and kinetics that are essential for molecular biologists to understand: binding and kinetics for molecular biologists pdf
| Method | Measures | Throughput | Pros | Cons | |--------|----------|------------|------|------| | | ( k_on, k_off, K_d ) | Medium | Label-free, real-time, small sample | Immobilization artifacts | | BLI (Octet) | ( k_on, k_off, K_d ) | High | Dip-and-read, crude lysates OK | Lower sensitivity than SPR | | ITC | ( K_d, \Delta H, \Delta S ) | Low | No labels, thermodynamic | Needs high concentration | | FRET/TR-FRET | ( k_on ) (if stopped-flow) | High | In solution, can be in cells | Requires labeling | | Radioactive filtration | ( k_off ) (traditional) | Low | Very precise off-rates | Radioactive waste, end-point only | | MST / MicroScale Thermophoresis | ( K_d ) | Medium | Any buffer, small volumes | No kinetics (only equilibrium) | When performing binding assays
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You don't need to be a physical chemist, but you need three equations memorized (or on a sticky note inside your hypothetical PDF). K_d ) | Medium | Label-free
These resources are specifically tailored for biologists who may not have a deep background in physics or pharmacology but need to perform quantitative experiments. Binding and Kinetics for Molecular Biologists
t1/2 = ln(2) / koff