Barbie (1991 video game) Barbie returns to the Barbie Dream House to get ready for the Fantasy Ball, and as she descends the stairs wearing all of her accessories, a dapper Ken awaits to dance with her. Unlike other Barbie games, "Barbie" is designed as a platformer. "Barbie"'s levels are "dreams" and each "dream" has Barbie walking left to right while avoiding obstacles to keep her "Zs" from dropping which would make her wake up and have to replay the level, or sometimes restart the entire game. Barbie can also request help from animals by selecting one of the charms on her charm bracelet
S-tag S-tag S-tag is the name of an oligopeptide derived from pancreatic ribonuclease A (RNase A). If RNase A is digested with subtilisin, a single peptide bond is cleaved, but the resulting two products remain weakly bound to each other and the protein, called ribonuclease S, remains active although each of the two products alone shows no enzymatic activity. The N-terminus of the original RNase A, also called S-peptide, consists of 20 amino acid residues, of which only the first 15 are required for ribonuclease activity. This 15 amino acids long peptide is called S15 or S-tag. The amino acid sequence