Glucose catabolism of the hyperthermophilic archaeum Thermoproteus tenax

15 July 1993

journal article
Published by Oxford University Press (OUP) in FEMS Microbiology Letters

Vol. 111 (1) , 1-7
https://doi.org/10.1016/0378-1097(93)90174-z

Abstract

Pulse labelling experiments and enzyme studies show that Thermoproteus tenax is able to degrade glucose via the Embden-Meyerhof-Parnas (EMP) pathway. T. tenax is the first archeum for which the glycolytic EMP pathway could be established. One of the key enzymes, 6-phosphofructokinase of T. tenax depends on (pyrophosphate-fructose-6-phosphate-1-phosphotransferase) instead of ATP as found in some bacterial and eucaryal species. In addition to the intermediates of the EMP pathway the intermediary products of the non-phosphorylated Entner-Doudoroff pathway were also detected by pulse labelling experiments indicating that under chemoorganotrophic conditions at least 2 glycolytic pathways are operative in T. tenax.

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