Lewandowski, Jozef R.Sein, JulienBlackledge, MartinEmsley, Lyndon2015-01-082015-01-082015-01-08201010.1021/ja907067jhttps://infoscience.epfl.ch/handle/20.500.14299/110027WOS:000275084800032A model for calculating the influence of anisotropic collective motions on NMR relaxation rates in crystalline proteins is presented. We show that small-amplitude (<10 degrees) fluctuations may lead to substantial contributions to the (15)N spin-lattice relaxation rates and propose that the effect of domain motions should be included in solid-state NMR analyses of protein dynamics.text::journal::journal article::research article