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Induction of d-xylan-degrading enzymes in Trichoderma lignorum by nonmetabolizable inducers. A synthesis of 4-thioxylobiose by Jacques Defaye; Hugues Driguez; Michael John; Jürgen Schmidt; Eric Ohleyer is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Induction of d-xylan-degrading enzymes in Trichoderma lignorum by nonmetabolizable inducers. A synthesis of 4-thioxylobiose about?

The D-xylan-degrading enzymes of Trichoderma lignorum can be induced by several oligo-and poly-saccharides. The induction is optimal when L-arabino-Dxylan is used as carbon source. The enzymes were also produced by cells grown on glycerol in the presence of 4-thioxylobiose (4-S-P-D-xylopyranosyl-4-thio-Dxylopyranose) and methyl P-D-xylopyranoside. These inducers were not taken up by the cells. The extent of induction was, however, lower than with xylobiose. Thioxylobiose was obtained in an overall yield of 55~50% from the reaction of 1,2,3-tri-O-benzoyl-CO-trifluoromethylsulfonyl-~-~-arabinopyranose with the sodium salt of l-thio-P-D-xylopyranose in N',W,W"-hexamethylphosphoramide, followed by 0-deacylation of the resulting 4-thiodisaccharide.

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Author

Jacques Defaye; Hugues Driguez; Michael John; Jürgen Schmidt; Eric Ohleyer

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6215)

Published

1985

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)