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The Coronin Family of Proteins


Edited By:

Christoph Clemen
University of Cologne
Koeln, Germany

Ludwig Eichinger
Center for Biochemistry, University of Cologne

Vasily Rybakin
The Scripps Research Institute
La Jolla, California, U.S.A.

ISBN: 978-0-387-09594-3
Published: 2008-08-05

This book may be purchased as an eBook (pdf) for $99, or individual chapters (pdf) may be purchased from the list below for $19.




Coronin proteins play fundamental roles in a variety of cellular processes and mis-regulation of some family members is apparently associated with multiple diseases, including cancer. This volume on coronin proteins makes a sincere attempt to provide a comprehensive overview on all aspects of coronins including history, phylogeny, structure, subcellular localization, mechanisms and interactions, as well as functions in different organisms.

The first section of the book introduces two superfamilies of proteins with beta-propellers, the WD40 superfamily, to which the coronins belong, and the structurally related Kelch superfamily. The second section starts with recollections from the earliest days of coronin research together with an overview of the still-developing field of research. An in-depth phylogenetic analysis delineates twelve coronin subfamily clades in distinct phyla comprising seven vertebrate paralogs. This data provides a rational basis for revision of the coronin nomenclature. Advanced sequence analyses demonstrate the existence of either seven or fourteen WD40-motifs in all coronin proteins and the structure of coronin proteins is discussed. The third section focuses on specific aspects of coronin proteins. Here, mechanisms and interactions of a coronin protein that coordinates actin assembly and disassembly in cytoskeletal dynamics are described. The development of coronin function during evolution is traced by phylogenetic, structural, and functional data starting with the oldest coronin proteins in unicellular pathogens. The individual members of the coronin protein family contribute to largely different cellular functions. Coronins of invertebrates, including the amoeba Dictyostelium discoideum in which coronin was initially identified, are important regulators of the actin cytoskeleton. However, coronins also play roles in signal transduction, transcriptional regulation, and regulation of vesicular trafficking at the Golgi apparatus. The last section of the book describes coronins in immunity and disease, i.e. an involvement in the regulation of leukocyte specific signalling events, brain development, neural regeneration, and in multiple types of clinically aggressive cancer.

The book should be of interest for scientists outside the field, but is more importantly intended as a fast and competent guide for newcomers as well as doctoral and postdoctoral scientists to coronin research in all its facets.


Chapters available from this book


Role of Mammalian Coronin 7 in the Biosynthetic Pathway

Vasily Rybakin

Most coronin proteins rely on interaction with actin in their functions. Mammalian coronin 7 has not been shown to interact with actin, but rather to bind to the outer side of Golgi complex membranes. Targeting of coronin 7 to Golgi membranes requires the activity of Src kinase and integrity of AP&#...

Editorial:

The Coronin Family of Proteins

Christoph S. Clemen, Vasily Rybakin and Ludwig Eichinger

The coronins, first described in Dictyostelium discoideum in 1991, have meanwhile been detected in all eukaryotes except plants. They belong to the superfamily of WD40‑repeat proteins and represent a large family of proteins, which are often involved in cytoskeletal functions. Phylogenetic stu...

Diversity of WD‑Repeat Proteins

Temple F. Smith

The WD‑repeat‑containing proteins form a very large family that is diverse in both its function and domain structure. Within all these proteins the WD‑repeat domains are thought to have two common features: the domain folds into a beta propeller; and the domains form a platform wit...

A Brief History of the Coronin Family

Eugenio L. de Hostos

What I’d like to do in this chapter is to share with you my recollections from the earliest days of coronin research and then to provide an overview of the still‑developing story of this fascinating family of proteins. In the fall of 1989 I arrived as a postdoc in Guenther Gerisch’s depart...

Phylogenetic, Structural and Functional Relationships between WD‑ and Kelch‑Repeat Proteins

Andrew M. Hudson and Lynn Cooley

The β‑propeller domain is a widespread protein organizational motif. Typically, β‑propeller proteins are encoded by repeated sequences where each repeat unit corresponds to a twisted β‑sheet structural motif; these β‑sheets are arranged in a circle around ...

The Role of Mammalian Coronins in Development and Disease

David W. Roadcap, Christoph S. Clemen and James E. Bear

Coronins have maintained a high degree of conservation over the roughly 800 million years of eukaryotic evolution. From its origins as a single gene in simpler eukaryotes, the mammalian Coronin gene family has expanded to include at least six members (see Chapter 4). Increasing evidence indicates th...

Invertebrate Coronins

Maria-Christina Shina and Angelika A. Noegel

Coronins are highly conserved among species, but their function is far from being understood in detail. Here we will introduce members of the family of coronin like proteins from Drosophila melanogaster, Caenorhabditis elegans and the social amoeba Dictyostelium discoideum. Genetic data from D. disc...

Evolutionary and Functional Diversity of Coronin Proteins

Charles-Peter Xavier, Ludwig Eichinger, M. Pilar Fernandez, Reginald O. Morgan and Christoph Clemen

This chapter discusses various aspects of coronin phylogeny, structure and function that are of specific interest. Two subfamilies of ancient coronins of unicellular pathogens such as Entamoeba, Trypanosoma, Leishmania and Acanthamoeba as well as of Plasmodium, Babesia, and Trichomonas are pre...

Coronin: The Double-Edged Sword of Actin Dynamics

Meghal Gandhi and Bruce L. Goode

Coronin is a conserved actin binding protein that promotes cellular processes that rely on rapid remodeling of the actin cytoskeleton, including endocytosis and cell motility. However, the exact mechanism by which coronin contributes to actin dynamics has remained elusive for many years. Here, we in...

Coronin 1 in Innate Immunity

Jean Pieters

The WD repeat containing family of coronin proteins is generally referred to as F‑actin‑interacting proteins. While in lower eukaryotes such as Dictyostelium discoideum, the single short coronin protein regulates several F‑actin dependent processes such as motility, phagocytosis an...

Molecular Phylogeny and Evolution of the Coronin Gene Family

Reginald O. Morgan and M. Pilar Fernandez

The coronin gene family comprises seven vertebrate paralogs and at least five unclassified subfamilies in nonvertebrate metazoa, fungi and protozoa, but no representatives in plants or distant protists. All known members exhibit elevated structural conservation in two unique domains of unknown funct...

Coronin Structure and Implications

Bernadette McArdle and Andreas Hofmann

Until recently, structural information about coronins was scarce and the earlier identification of five WD40 repeats gave rise to a structural prediction of a five‑bladed β propeller for the N‑terminal domain of these proteins. More detailed analyses revealed the presence of seven W...


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