to investigate whether or not the propeptide of serum albumin offers an advantage in albumin secretion , we used oligonucleotide-directed mutagenesis to delete the 18 base pairs which encode the propeptide from a cdna gene for rat serum albumin ( rsa ) , inserted the deleted gene into cos cells , and studied the secretion of the gene product ( rsa delta pro ) .
C0001924
albumin
C0036773
rsa