Unusual nucleotide sequences at the 5' end of actin genes in Dictyostelium discoideum.

Abstract
The nucleotide sequences at the 5'' end of 1 actin c[complementary]DNA and 6 actin genomic clones from Dictyostelium were determined. The amino acid sequences derived from the nucleotide sequences show strong conservation for 6 of the 7 genes relative to the NH2-terminal region of Physarum actin. The region 5'' to the AUG initiating codon is > 90% A + T residues in all of the genes.