Dear Paul, There is a Phage Display Library in E. coli which may be usefull for you. The name of the product is: pSKAN Phagemid Display System. Company : Mo Bi Tec GmbH Wagenstieg5 D-37077 Göttingen Germany Fax: ++49 551/34987 Tel: ++49 551/34987 Perhaps you contact them for other questions. Wolfgang