Song Jikui, Markley John L
Center for Eukaryotic Structural Genomics, Department of Biochemistry, University of Wisconsin-Madison, WI 53706-1544, USA.
Protein Pept Lett. 2007;14(3):265-8. doi: 10.2174/092986607780090801.
As part of structural investigations of components of the molecular motor, dynein, we prepared the light chain, Robl1_mouse, with and without an N-terminal His-tag. We found that the His-tag introduced a spurious binding site for a second protein, IC74. We propose a molecular mechanism for functional interference by the His-tag.