Keywords: Transmembrane proteins.PNG en wikibooks Adrignola CommonsHelper 2008-12-03 Meng-jou wu wikibooks en b English Wikibooks Meng-jou wu original upload log page en wikibooks Transmembrane_proteins PNG 2008-12-03 00 38 Meng-jou wu 478×390× 14365 bytes <nowiki></nowiki> Membrane proteins |