The precursor of egp is translated from a transcript that has had one nontemplated nucleotide added to the open reading frame. this change does not create or eliminate a stop codon. compared with the protein sgp, which is produced from the unedited transcript, egp most likely has the same primary:
amino-terminal sequence as sgp, but a different primary carboxy-terminal sequence
carboxy-terminal sequences as sgp, but different primary amino-terminal sequence
sequence as sgp except egp has one additional aa
sequence has sgp except that egp has one less aa