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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: J Magn Reson. 2009 Nov 26;203(1):11–28. doi: 10.1016/j.jmr.2009.11.014

Figure 1.

Figure 1

The field dependence of the protein 15N TROSY effect for τc=22 ns calculated using an rhombic 15N CSA tensor with σ11=230, σ22=87 and σ33=60 ppm, with σ1117 deg off the NH-bond of 1.04 Å using Eqs. (1–4).

Thick solid line: total 15N R2 as encountered in a HSQC or HMQC; Thick dashed line: 15N R2 due to 15N-1H dipolar relaxation; Thin dashed line: 15N R2 due to 15N CSA relaxation; Thin grey line: the 15N R2 15N-1H dipolar / 15N CSA cross correlated relaxation rate; Thick grey line: 15N R2 as encountered in a TROSY (i.e. total 15N R2 minus 15N R2 15N-1H dipolar / 15N CSA cross correlation). Thin grey line: 15N R2 of the anti-TROSY line (i.e. total 15N R2 plus 15N R2 15N-1H dipolar / 15N CSA cross correlated relaxation rate).