2K5U SIGNALING PROTEIN, ARF, ARF1, MYRISTOYL, MYRSITOYLATED, GDP, ER-GOLGI TRANSPORT, GOLGI APPARATUS, GTP-BINDING, LIPOPROTEIN, MYRISTATE, NUCLEOTIDE-BINDING, PROTEIN TRANSPORT, TRANSPORT SOLUTION STRUCTURE OF MYIRSTOYLATED YEAST ARF1 PROTEIN, GDP- BOUND