Structure of the guanine-nucleotide-binding domain of the Ha-ras oncogene 
product p21 in the triphosphate conformation

Pai, Emil F.; Kabsch, Wolfgang; Krengel, Ute; Holmes, Kenneth C.; John, Jacob J.; Wittinghofer, Alfred

doi:10.1038/341209a0

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Structure of the guanine-nucleotide-binding domain of the Ha-ras oncogene product p21 in the triphosphate conformation

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Kabsch, Wolfgang
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Krengel, Ute
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Holmes, Kenneth C.
Protein Cristallography XDS, Max Planck Institute for Medical Research, Max Planck Society;
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Muscle Research, Max Planck Institute for Medical Research, Max Planck Society;

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Wittinghofer, Alfred
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Pai, E. F., Kabsch, W., Krengel, U., Holmes, K. C., John, J. J., & Wittinghofer, A. (1989). Structure of the guanine-nucleotide-binding domain of the Ha-ras oncogene product p21 in the triphosphate conformation. Nature, 341(6239), 209-214. doi:10.1038/341209a0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-AD91-2

Abstract

The crystal structure of the guanine-nucleotide-binding domain of p21 (amino acids 1-166) complexed to the guanosine triphosphate analogue guanosine-5'-(beta, gamma-imido)triphosphate (GppNp) has been determined at a resolution of 2.6 A. The topological order of secondary structure elements is the same as that of the guanine-nucleotide-binding domain of bacterial elongation factor EF-Tu. Many interactions between nucleotide and protein have been identified. The effects of point mutations and the conservation of amino-acid sequence in the guanine-nucleotide-binding proteins are discussed.