Comparison of the low energy conformations of an oncogenic and a non-oncogenic p21 protein, neither of which binds GTP or GDP.

Abstract excerpt

Oncogenic p21 protein, encoded by the ras-oncogene, that causes malignant transformation of normal cells and many human tumors, is almost identical in sequence to its normal protooncogene-encoded counterpart protein, except for the substitution of arbitrary amino acids for the normally occurring amino acids at critical positions such as Gly 12 and Gln 61. Since p21 is normally activated by the binding of GTP in...

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