✦ LIBER ✦

On the compartmentation of isopentenyl diphosphate synthesis and utilization in plant cells

✍ Scribed by Klaus Kreuz; Hans Kleinig

Book ID: 104749433
Publisher: Springer-Verlag
Year: 1981
Tongue: English
Weight: 346 KB
Volume: 153
Category: Article
ISSN: 0032-0935
DOI: 10.1007/bf00385544

No coin nor oath required. For personal study only.

✦ Synopsis

Purified spinach chloroplast and daffodil chromoplast preparations do not use mevalonate, phosphomevalonate, and diphosphomevalonate for the synthesis of isopentenyl diphosphate. Isopentenyl diphosphate, on the other hand, is incorporated into plastidal polyprenoids in large amounts. In the presence of a cytoplasmic supernatant, however, mevalonate and the phosphomevalonates were incorporated into the plastidal polyprenoids in equally large amounts, which demonstrates that the enzymes mevalonate kinase (EC 2.7.1.36), phosphomevalonate kinase (EC 2.7.4.2), and diphosphomevalonate decarboxylase (EC4.1.1.33) are soluble cytoplasmic enzymes and that they apparently do not occur as isoenzymes within the plastids. The concept is developed that isopentenyl diphosphate is a central intermediate in plant polyprenoid formation which is channeled into several compartments for different biosynthetic pathways.

📜 SIMILAR VOLUMES

Synthesis of prenyl lipids in cells of s

Synthesis of prenyl lipids in cells of spinach leaf : Compartmentation of enzymes for formation of isopentenyl diphosphate

✍ Klaus KREUZ; Hans KLEINIG 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 540 KB

Genetic Evidence for the Role of Isopent

Genetic Evidence for the Role of Isopentenyl Diphosphate Isomerases in the Mevalonate Pathway and Plant Development in Arabidopsis

✍ Okada, K.; Kasahara, H.; Yamaguchi, S.; Kawaide, H.; Kamiya, Y.; Nojiri, H.; Yam 📂 Article 📅 2008 🏛 Oxford University Press 🌐 English ⚖ 816 KB

Stereochemical Studies on the Making and

Stereochemical Studies on the Making and Unmaking of Isopentenyl Diphosphate in Different Biological Systems

✍ Ralf Laupitz; Tobias Gräwert; Christoph Rieder; Ferdinand Zepeck; Adelbert Bache 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 227 KB 👁 1 views

To investigate the unknown stereochemical course of the reaction catalyzed by the type-II isomerase, which interconverts isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP), a sample of [1,2-13 C 2 ]-IPP stereospecifically labelled with 2 H at C(2) was prepared by incubating a D 2 O

Stereochemical Studies on the Making and

Stereochemical Studies on the Making and Unmaking of Isopentenyl Diphosphate in Different Biological Systems

✍ Ralf Laupitz; Tobias Gräwert; Christoph Rieder; Ferdinand Zepeck; Adelbert Bache 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 29 KB 👁 1 views

Metabolic engineering of the nonmevalona

Metabolic engineering of the nonmevalonate isopentenyl diphosphate synthesis pathway in Escherichia coli enhances lycopene production

✍ Seon-Won Kim; J. D. Keasling 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 231 KB 👁 2 views

[Plant Cell Monographs] The Pollen Tube

[Plant Cell Monographs] The Pollen Tube Volume 3 || Lipid Metabolism, Compartmentalization and Signalling in the Regulation of Pollen Tube Growth

✍ Malhó, Rui 📂 Article 📅 2006 🏛 Springer-Verlag 🌐 German ⚖ 511 KB

(publisher-supplied Data) The Enormous Amount Of Data Now Available About The Pollen Tube Clearly Reflects Its Qualities As A Biological Model That Go Much Beyond That Of A Carrier Of Sperm Cells Essential For Plant Reproduction. The Diversity Of Techniques And Methodologies Currently Used To Study