Abstract
THE enzyme transketolase is biologically widely distributed, and, in presence of thiamine pyrophosphate and magnesium ions, transfers the ketol group or ‘active glycolaldehyde’ (CH2OH.CO…H) from a variety of ketose phosphates (sedoheptulose 7-phosphate, D-fructose 6-phosphate, D-xylulose 5-phosphate), from certain free ketoses (L-erythrulose, D-xylulose) and from hydroxypyruvic acid to certain ‘acceptor aldehydes’, thus synthesizing new ketoses. The ‘acceptor aldehydes’ hitherto recognized are D-glyceraldehyde 3-phosphate, D-ribose 5-phosphate, D-erythrose 4-phosphate and 2-deoxyribose 5-phosphate; also free glyceraldehyde and glycolaldehyde (for reviews see refs. 1–3). Acetaldehyde and formaldehyde are stated not to be acceptors4, but the former appears in our preliminary tests to be weakly active.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Racker, E., “Adv. in Enzym.”, 15, 141 (1954).
Gunsalus, I. C., Horecker, B. L., and Wood, W. A., Bact. Rev., 19, 79 (1955).
Dickens, F., Ann. New York Acad. Sci. (in the press).
Haba, G. de la, Leder, I. G., and Racker, E., J. Biol. Chem., 214, 409 (1955).
Dickens, F., and Williamson, D. H., Biochem. J., 68, 74 (1958).
Bublitz, C., and Kennedy, E. P., J. Biol. Chem., 211, 951 (1954).
Ichihara, A., and Greenberg, D. M., J. Biol. Chem., 224, 331 (1957).
Sallach, H. J., J. Biol. Chem., 223, 1101 (1956).
Friedmann, B., Levin, H. W., and Weinhouse, S., J. Biol. Chem., 221, 665 (1956).
Dickens, F., Proc. Internat. Symp. Enzyme Chemistry, Tokyo and Kyoto, Paper No. 122 (1957).
Dickens, F., and Williamson, D. H., Biochem. J., 68, 84 (1958).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
DICKENS, F., WILLIAMSON, D. Formaldehyde as an Acceptor Aldehyde for Transketolase, and the Biosynthesis of Triose. Nature 181, 1790 (1958). https://doi.org/10.1038/1811790a0
Issue date:
DOI: https://doi.org/10.1038/1811790a0