Universität zu Köln

Becker, Burkhard ORCID: 0000-0002-7965-1396, Doan, Jean Michel, Wustman, Brandon, Carpenter, Eric J., Chen, Li, Zhang, Yong, Wong, Gane K. -S. and Melkonian, Michael (2015). The Origin and Evolution of the Plant Cell Surface: Algal Integrin-Associated Proteins and a New Family of Integrin-Like Cytoskeleton-ECM Linker Proteins. Genome Biol. Evol., 7 (6). S. 1580 - 1590. OXFORD: OXFORD UNIV PRESS. ISSN 1759-6653

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Abstract

The extracellular matrix of scaly green flagellates consists of small organic scales consisting of polysaccharides and scale-associated proteins (SAPs). Molecular phylogenies have shown that these organisms represent the ancestral stock of flagellates from which all green plants (Viridiplantae) evolved. The molecular characterization of four different SAPs is presented. Three SAPs are type-2 membrane proteins with an arginine/alanine-rich short cytoplasmic tail and an extracellular domain that is most likely of bacterial origin. The fourth protein is a filamin-like protein. In addition, we report the presence of proteins similar to the integrin-associated proteins a-actinin (in transcriptomes of glaucophytes and some viridiplants), LIM-domain proteins, and integrin-associated kinase in transcriptomes of viridiplants, glaucophytes, and rhodophytes. Wepropose that themembrane proteins identified are the predicted linkers between scales and the cytoskeleton. These proteins are present in many green algae but are apparently absent from embryophytes. These proteins represent a new protein family we have termed gralins for green algal integrins. Gralins are absent from embryophytes. A model for the evolution of the cell surface proteins in Plantae is discussed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Becker, Burkhard UNSPECIFIED orcid.org/0000-0002-7965-1396 UNSPECIFIED Doan, Jean Michel UNSPECIFIED UNSPECIFIED UNSPECIFIED Wustman, Brandon UNSPECIFIED UNSPECIFIED UNSPECIFIED Carpenter, Eric J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chen, Li UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Yong UNSPECIFIED UNSPECIFIED UNSPECIFIED Wong, Gane K. -S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Melkonian, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-402227
DOI:	10.1093/gbe/evv089
Journal or Publication Title:	Genome Biol. Evol.
Volume:	7
Number:	6
Page Range:	S. 1580 - 1590
Date:	2015
Publisher:	OXFORD UNIV PRESS
Place of Publication:	OXFORD
ISSN:	1759-6653
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language GREEN-ALGAE; CHLOROPHYTA; ARCHAEPLASTIDA; PRASINOPHYCEAE; MITOCHONDRIAL; MEMBRANE; SUPPORT; NUCLEAR; SCALES Multiple languages Evolutionary Biology; Genetics & Heredity Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/40222