The nucleotide sequence of a cDNA clone isolated from developing wheat embryos and encoding the E protein is reported. The entire coding region for E and the 3' non-translated flank are contained within this clone. The amino m acid sequence deduced for Em is very rich in glycine (18 mol%) as well as both basic and acidic residues. The molecular weight of the protein is ca. 9,900 daltons. The deduced sequence is supported by direct amino acid sequencing of cyanogen bromide cleavage fragments obtained from purified E protein. E is shown by Southern blots to be a product of a gene family of approximately ten members.

Aps-1 encodes acid phosphatase-1, one of the many acid phosphatases present in tomato (Lycopersicon esculentum Mill.

No abstract