Opalka, N., Chlenov, M., Chacon, P., Rice, W. J., Wriggers, W., & Darst, S. A. (2003). Structure and Function of the Transcription Elongation Factor GreB Bound to Bacterial RNA Polymerase. Cell, 114(3), 335–345. https://doi.org/10.1016/s0092-8674(03)00600-7
