Comparison of the lipoprotein gene among the Enterobacteriaceae. DNA sequence of Erwinia amylovora lipoprotein gene.

A DNA sequence of 816 base pairs encompassing the entire Erwinia amylovora lipoprotein gene was determined. Sequence comparison between E. amylovora, Escherichia coli, and Serratia marcescens suggests that the structure of the lipoprotein has been highly conserved under the constraint of efficient gene expression selecting promoter structure, mRNA secondary structure, and codon usage in addition to the polypeptide function. The sequence also suggests that the lpp gene of the three bacteria diverged sequentially in the course of evolution.