Difference between revisions of "DPL94"
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== Equation == | == Equation == | ||
<math> | <math> | ||
| − | \mathrm{R}_{1\rho}= \mathrm{R}_1\cos^2\theta + \left( \mathrm{R}_{1\rho}{´} + \frac{\Phi k}{\textrm{k}_\textrm{ex}^2 + \omega_\textrm{e}^2} \right) | + | \mathrm{R}_{1\rho}= \mathrm{R}_1\cos^2\theta + \left( \mathrm{R}_{1\rho}{´} + \frac{\Phi \textrm{k}_\textrm{ex}^2}{\textrm{k}_\textrm{ex}^2 + \omega_\textrm{e}^2} \right) |
</math> | </math> | ||
Revision as of 08:25, 5 March 2014
The Davis et al., 1994 2-site off-resonance fast exchange relaxation dispersion model for R1rho-type data. It extends the M61 model to off-resonance data, hence it collapses to this model for on-resonance data. The model is labelled as DPL94 in relax.
Equation
[math] \mathrm{R}_{1\rho}= \mathrm{R}_1\cos^2\theta + \left( \mathrm{R}_{1\rho}{´} + \frac{\Phi \textrm{k}_\textrm{ex}^2}{\textrm{k}_\textrm{ex}^2 + \omega_\textrm{e}^2} \right) [/math]
Parameters
The DPL94 model has the parameters {$R_{1\rho}'$, $...$, $\Phi_{ex}$, $k_{ex}$}.
Reference
The reference for the DPL94 model is:
- Davis, D., Perlman, M., and London, R. (1994). Direct measurements of the dissociation-rate constant for inhibitor-enzyme complexes via the T1rho and T2 (CPMG) methods. J. Magn. Reson., 104(3), 266–275. (10.1006/jmrb.1994.1084)
Related models
The DPL94 model is simply the extension of the M61 model for off-resonance data.
Links
The implementation of the DPL94 model in relax can be seen in the:
