Penicillinase is a specific type of Î²-lactamase, showing specificity for penicillins, again by hydrolysing the Î²-lactam ring. Molecular weights of the various penicillinases tend to cluster near 50 kiloDaltons.
The Game Boy Advance SP (ã²ã¼ã ãã¼ã¤ã¢ããã³ã¹SP, GÄmu BÅi Adobansu Essu PÄ«), released in February 2003, is an upgraded version of Nintendo's Game Boy Advance. The SP in the name stands for Special. The SP was marketed at US$99.99 at launch. In September 2004, Nintendo lowered the price to US$79.99. The SP is accompanied by the Nintendo DS (released in November 2004) and the Game Boy Micro (released in September 2005). In Japan, it was marketed at Â¥12,500 on February 14, 2003. In Canada, it was marketed at CA$149.95 on March 22, 2003.
Shopping for a game boy advance: 1  Used games cost $10 to $35 or more, with older titles on the lower end and newer releases starting at $30 and up. 2  Game Boy Advance systems and games are available at Amazon, eBay and other online retailers. These units can cost about $160-$250, depending on the games and accessories included. 2  For example, the Game Boy Advance SP Platinum costs $162 for the console alone, and the Game Boy Advance SP with four games costs about $250.