TY - RPRT TI - Molecular switch for signal transduction: structural differences between active and inactive forms of protooncogenic ras proteins. AU - M V Milburn AU - L Tong AU - A M deVos AU - A BrĂ¼nger AU - Z Yamaizumi AU - S Nishimura AU - S H Kim PY - 1990 DO - 10.1126/science.2406906 UR - https://pubmed.ncbi.nlm.nih.gov/2406906/ ID - 2406906 ER -