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Regulation of Enzyme Activity During Differentiation in Dictyostelium Discoideum

Regulation of Enzyme Activity During Differentiation in Dictyostelium Discoideum For purposes of the present analysis, biochemical differentiation may conveniently defined as a specialization process during which a cell (or its progeny) accumu­ lates significant amounts of materials not present at an earlier (specified) point in time. This new material may be of any chemical composition, e.g. bone tissue, a be 139 KILLICK & WRIGHT specific protein (such as silk fibroin), pigment, or carbohydrate. With respect to the cellular slime mold, Dictyostelium discoideum, some of the new materials which accumulate and hence characterize the differentiated state are specific saccharides. The following discussion will be concerned with the accumulation of these saccha­ rides. The proteins involved will not be considered as endproducts of differentiation, but solely as catalysts (enzymes). The editors of the Review encouraged the authors to present a critical discussion of the current status of the field, rather than an encyclopedic coverage of the literature. Due to space limitations, this review must be restricted in scope, and will be confined to a critical analysis of several mechanisms by which enzymatic activity may be modulated during differentiation in Dictyostelium. Lif Cycle e The life cycle of D. discoideum consists of two mutually exclusive phases: growth and differentiation (8). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Microbiology Annual Reviews

Regulation of Enzyme Activity During Differentiation in Dictyostelium Discoideum

Killick, K A; Wright, B E
Annual Review of Microbiology , Volume 28 (1) – Oct 1, 1974
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Publisher
Annual Reviews
Copyright
Copyright 1974 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4227
eISSN
1545-3251
DOI
10.1146/annurev.mi.28.100174.001035
pmid
4372936
Publisher site
See Article on Publisher Site

Abstract

For purposes of the present analysis, biochemical differentiation may conveniently defined as a specialization process during which a cell (or its progeny) accumu­ lates significant amounts of materials not present at an earlier (specified) point in time. This new material may be of any chemical composition, e.g. bone tissue, a be 139 KILLICK & WRIGHT specific protein (such as silk fibroin), pigment, or carbohydrate. With respect to the cellular slime mold, Dictyostelium discoideum, some of the new materials which accumulate and hence characterize the differentiated state are specific saccharides. The following discussion will be concerned with the accumulation of these saccha­ rides. The proteins involved will not be considered as endproducts of differentiation, but solely as catalysts (enzymes). The editors of the Review encouraged the authors to present a critical discussion of the current status of the field, rather than an encyclopedic coverage of the literature. Due to space limitations, this review must be restricted in scope, and will be confined to a critical analysis of several mechanisms by which enzymatic activity may be modulated during differentiation in Dictyostelium. Lif Cycle e The life cycle of D. discoideum consists of two mutually exclusive phases: growth and differentiation (8).

Journal

Annual Review of Microbiology – Annual Reviews

Published: Oct 1, 1974

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