Comparative phylogenetic analysis of cystatin gene families from arabidopsis, rice and barley

Martinez Muñoz, Manuel and Abraham, Zamira and Carbonero Zalduegui, Pilar and Diaz Rodriguez, Isabel (2005). Comparative phylogenetic analysis of cystatin gene families from arabidopsis, rice and barley. "Molecular Genetics and Genomics", v. 273 (n. 5); pp. 423-432. ISSN 1617-4615. https://doi.org/10.1007/s00438-005-1147-4.

Description

Title: Comparative phylogenetic analysis of cystatin gene families from arabidopsis, rice and barley
Author/s:
  • Martinez Muñoz, Manuel
  • Abraham, Zamira
  • Carbonero Zalduegui, Pilar
  • Diaz Rodriguez, Isabel
Item Type: Article
Título de Revista/Publicación: Molecular Genetics and Genomics
Date: June 2005
Volume: 273
Subjects:
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The plant cystatins or phytocystatins comprise a family of specific inhibitors of cysteine proteinases. Such inhibitors are thought to be involved in the regulation of several endogenous processes and in defence against pests and pathogens. Extensive searches in the complete rice and Arabidopsis genomes and in barley EST collections have allowed us to predict the presence of twelve different cystatin genes in rice, seven in Arabidopsis, and at least seven in barley. Structural comparisons based on alignments of all the protein sequences using the CLUSTALW program and searches for conserved motifs using the MEME program have revealed broad conservation of the main motifs characteristic of the plant cystatins. Phylogenetic analyses based on their deduced amino acid sequences have allowed us to identify groups of orthologous cystatins, and to establish homologies and define examples of gene duplications mainly among the rice and barley cystatin genes. Moreover, the absence of a counterpart between the two monocots, as well as strong variations in the motifs that interact with the cysteine proteinases, may be related to a species-specific evolutionary process. This cystatin classification should facilitate the assignment of proteinase specificities and functions to other cystatins as new information is obtained.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL03-0335UnspecifiedIsabel DíazProteínas inhibidoras de hidrolasas: nuevos genes fungicidas e insecticidas
Madrid Regional Government07M/0050/2002UnspecifiedIsabel DíazEvaluación y especificidad de inhibidores de proteasas de origen vegetal frente a hongos fitopatógenos, insectos plaga y enemigos naturales

More information

Item ID: 53867
DC Identifier: http://oa.upm.es/53867/
OAI Identifier: oai:oa.upm.es:53867
DOI: 10.1007/s00438-005-1147-4
Official URL: https://link.springer.com/article/10.1007/s00438-005-1147-4
Deposited by: Biblioteca ETSI Agrónomos
Deposited on: 05 Feb 2019 12:31
Last Modified: 05 Feb 2019 12:31
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