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Preparation Microbiologique Du 2-CETO-3-Desoxy-D-Gluconate 1-14C ou U-14C

✍ Scribed by J. Pouyssegur

Publisher
John Wiley and Sons
Year
1973
Tongue
French
Weight
358 KB
Volume
9
Category
Article
ISSN
0022-2135

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✦ Synopsis

Abstract

A E. Coli K 12 mutant having lost 2‐keto‐3‐desoxy‐gluconate kinase activity is unable to utilize glucuronate as a unique carbon source. However, this strain is able to partially convert glucuronate into KDG in resting cells conditions reported here.

A method is described making it possible to produce 1‐ ^14^C‐KDG or U‐^14^C‐KDG when the kinase cells metabolise 6‐^14^C or U‐^14^C‐D‐glucuronate. The radioactive KDG accumulated in the incubation medium has been purified thanks to a biological specific method followed by chromatography on anionic resin. The yield of the purified KDG from the hexuronate is about 20%. According to chromatographic criteria and specific conversion by KDG‐kinase, the product obtained has been authenticated as true KDG.

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