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The backbone structure of human c-H-ras oncogene protein. The flow of the backbone is represented by a continuous ribbon using a program BSRIBBON. The guanosine diphosphate molecule is shown as a dot-surface using the program PSFRODO. See page 888. [A. M. de Vos et al., Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720]


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Science. ISSN 0036-8075 (print), 1095-9203 (online)