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Phosphoproteins of the stathmin family interact with the αβ tubulin heterodimer (tubulin) and hence interfere with microtubule dynamics. The structure of the complex of GDP-tubulin with the stathmin-like domain of the neural protein RB3 reveals a head-to-tail assembly of two tubulins with a 91-residue RB3 α helix in which each copy of an internal duplicated sequence interacts with a different tubulin...
The crystal structure of the barstar mutants (Y29P) and (Y29D, Y30W) as well as that of the complexes of barstar(Y29P) with wild-type barnase and barnase(H102K) have been determined. These barstar mutants compensate for the dramatic loss of barnase-barstar interaction energy caused by a single mutation of the barnase active site His-102 to a lysine. The latter introduces an uncompensated charge in...
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