Journal
MOLECULAR MICROBIOLOGY
Volume 58, Issue 1, Pages 17-27Publisher
WILEY
DOI: 10.1111/j.1365-2958.2005.04777.x
Keywords
-
Categories
Funding
- NCI NIH HHS [R01 CA102102-01A2, R01 CA102102] Funding Source: Medline
Ask authors/readers for more resources
The indolocarbazole staurosporine is a potent inhibitor of a variety of protein kinases. It contains a sugar moiety attached through C- N linkages to both indole nitrogen atoms of the indolocarbazole core. Staurosporine biosynthesis was reconstituted in vivo in a heterologous host Streptomyces albus by using two different plasmids: the ` aglycone vector' expressing a set of genes involved in indolocarbazole biosynthesis together with staG ( encoding a glycosyltransferase) and/ or staN ( coding for a P450 oxygenase), and the ` sugar vector' expressing a set of genes responsible for the biosynthesis of the sugar moiety. Attachment of the sugar to the two indole nitrogens of the indolocarbazole core was dependent on the combined action of StaG and StaN. When StaN was absent, the sugar was attached only to one of the nitrogen atoms, through an N- glycosidic linkage, as in the indolocarbazole rebeccamycin. The StaG glycosyltransferase showed flexibility with respect to the sugar donor. When the ` sugar vector' was substituted by constructs directing the biosynthesis of (L)- rhamnose, (L)-digitoxose, (L)-olivose and (D)-olivose, respectively, StaG and StaN were able to transfer and attach all of these sugars to the indolocarbazole aglycone.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available