Barbie (1991 video game) Barbie (1991 video game) Barbie is a multi-platform video game developed by Imagineering for Hi Tech Expressions. It is based on Mattel Inc.'s doll of the same name and was created in an attempt to get more girls to play video games. As such, it is one of the few explicitly girl-oriented NES games. The game takes place in a dream where Barbie must travel through three different worlds (Mall, Underwater and Soda Shop) to gather accessories before attending a ball to meet Ken. Despite it having been of little interest to typical gamers at the time of its release,
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