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. 1989 May;90(1):13–16. doi: 10.1104/pp.90.1.13

An Assessment of the Rubisco Inhibitor

2-Carboxyarabinitol-1-Phosphate and d-Hamamelonic Acid 21-Phosphate Are Identical Compounds

Erwin Beck 1,2, Renate Scheibe 1,2, Josef Reiner 1,2
PMCID: PMC1061666  PMID: 16666722

Abstract

2-Carboxyarabinitol-1-phosphate, the nocturnal inhibitor of ribulose-1,5-bisphosphate carboxylase/oxygenase is identical with d-hamamelonic acid-21-phosphate. Reasoning is based on theoretical considerations as well as on mass spectra and 1H- and 13C-NMR spectra of the phosphate-free compounds. d-Hamamelonic acid-21-phosphate is interpreted as a metabolic derivative of d-hamamelose-21,5-bisphosphate which originates in the chloroplast from fructose-1,6-bisphosphate. A simple method for the synthesis of the inhibitor is suggested.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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