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Insights in the glycosylation steps during biosynthesis of the antitumor anthracycline cosmomycin: Characterization of two glycosyltransferase genes

  • Leandro M. Garrido
  • , Felipe Lombó
  • , Irfan Baig
  • , Mohammad Nur-E-Alam
  • , Renata L.A. Furlan
  • , Charlotte C. Borda
  • , Alfredo Braña
  • , Carmen Méndez
  • , José A. Salas
  • , Jürgen Rohr
  • , Gabriel Padilla

Producción científica: Articlerevisión exhaustiva

29 Citas (Scopus)

Resumen

Glycosylation pattern in cosmomycins is a distinctive feature among anthracyclines. These antitumor compounds possess two trisaccharide chains attached at C-7 and C-10, each of them with structural variability, mainly at the distal deoxysugar moieties. We have characterized a 14-kb chromosomal region from Streptomyces olindensis containing 13 genes involved in cosmomycin biosynthesis. Two of the genes, cosG and cosK, coding for glycosyltransferase were inactivated with the generation of five new derivatives. Structural elucidation of these compounds showed altered glycosylation patterns indicating the capability of both glycosyltransferases of transferring deoxysugars to both sides of the aglycone and the flexibility of CosK with respect to the deoxysugar donor. A model is proposed for the glycosylation steps during cosmomycins biosynthesis.

Idioma originalEnglish
Páginas (desde-hasta)122-131
Número de páginas10
PublicaciónApplied Microbiology and Biotechnology
Volumen73
N.º1
DOI
EstadoPublished - nov 2006

Nota bibliográfica

Funding Information:
Acknowledgements The authors thank specially collaborations of Drs. Arthur Gruber, Alda Madeira, Gilson P. Manfio, Valéria M. de Oliveira, and Hernando Del Portillo for the sequencing of the DNA, and the technical support of Dr. Fabiana Fantinatti-Garboggini, Dr. Emilio Fernando Merino, Karen Christina M. Simioni, and Daniele B. de Souza. This work was supported by grants from FAPESP to L.M.G. (00/07288-0) and to G.P. (03/00135-1), from the Spanish Ministry of Education and Science to L.M.G, R.L.A.F and C.M. (BMC2002-03599), and from the US National Institutes of Health (CA 091901 and CA 102102) to J.R. We thank Obra Social Cajastur for financial support to F.L.

Financiación

Acknowledgements The authors thank specially collaborations of Drs. Arthur Gruber, Alda Madeira, Gilson P. Manfio, Valéria M. de Oliveira, and Hernando Del Portillo for the sequencing of the DNA, and the technical support of Dr. Fabiana Fantinatti-Garboggini, Dr. Emilio Fernando Merino, Karen Christina M. Simioni, and Daniele B. de Souza. This work was supported by grants from FAPESP to L.M.G. (00/07288-0) and to G.P. (03/00135-1), from the Spanish Ministry of Education and Science to L.M.G, R.L.A.F and C.M. (BMC2002-03599), and from the US National Institutes of Health (CA 091901 and CA 102102) to J.R. We thank Obra Social Cajastur for financial support to F.L.

FinanciadoresNúmero del financiador
Obra Social Cajastur
National Institutes of Health (NIH)CA 102102
National Childhood Cancer Registry – National Cancer InstituteR01CA091901
Fundação de Amparo à Pesquisa do Estado de São Paulo03/00135-1, 00/07288-0
Ministerio de Educación, Cultura y DeporteBMC2002-03599

    ASJC Scopus subject areas

    • Biotechnology
    • Applied Microbiology and Biotechnology

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