protection of Pereent0 information as wenn France. Issuer, by: LL • ji For Sotheby, µe [SFevuz (France) S.A.S. Dale 12- riveters rOptille) S. AL) gitUtc- if you do not wish to receive marketing material please telephone us on • EFTA00532713 I 1 I I G, ill Pril pfill:119, ' „ PI li 'il

of the manuuript. Also, we thank 1. R. Klaenhammer for providing the integration system. This work was supported by holing from Danisco erS. Also, S. AL would like to acknovAedge support from the Natural Sciences and EnMneenng Research Council of Canada (NSERC) Cnscovery Program. Sequences sere dep