Expression of a potato (Solanum tuberosum L.) cDNA encoding 3-deoxy-D-
arabino-heptulosonate 7-phosphate synthase, the first enzyme of the sh
ikimate pathway, complemented an Escherichia coli mutant devoid of the
enzyme. While the potato cDNA encodes a protein with an amino termina
l putative transit sequence for chloroplast import, immunocytochemistr
y localized the E. coli synthesized potato enzyme to the bacterial cyt
osol.