THE NODB DOMAIN OF A MULTIDOMAIN XYLANASE FROM CELLULOMONAS-FIMI DEACETYLATES ACETYLXYLAN

The NodB-like domain from Cellulomonas fimi xylanase D is a member of a small family of structurally homologous proteins which includes a ch itin deacetylase from Mucor r ouxlr, an acetylxylan esterase from Stle ptomyces livirlans and the NodB protein from rhizobia. Functional anal ysis of the xylanase D NodB domain suggests that, like other members o f the family, it is a deacetylase, whose function is to remove acetyl groups from acetylated xylan.