Phytocalpains: orthologous calcium-dependent cysteine proteinases

A single calcium-dependent cysteine protease (calpain) gene, essential for aleurone cell development, has been identified recently in maize, although this activity had been described previously in Arabidopsis and maize roots associated with anoxia-induced root-tip death. Calpain genes are ubiquitous...

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Bibliographic Details
Published in:Trends in plant science 2003-02, Vol.8 (2), p.58-62
Main Authors: Margis, Rogério, Margis-Pinheiro, Márcia
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Analytical, structural and metabolic biochemistry
Animals
Biological and medical sciences
Calcium - metabolism
Cysteine Endopeptidases - chemistry
Cysteine Endopeptidases - genetics
Cysteine Endopeptidases - metabolism
Cysteine Proteinase Inhibitors
Enzymes and enzyme inhibitors
Evolution, Molecular
Fundamental and applied biological sciences. Psychology
Gene Expression Regulation
Humans
Hydrolases
Models, Molecular
Molecular Sequence Data
Phylogeny
Plants - enzymology
Plants - genetics
Protein Conformation
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Summary:A single calcium-dependent cysteine protease (calpain) gene, essential for aleurone cell development, has been identified recently in maize, although this activity had been described previously in Arabidopsis and maize roots associated with anoxia-induced root-tip death. Calpain genes are ubiquitous in animals and there are up to 12 paralogous genes in humans that exhibit molecular diversity outside of their catalytic domain. Calpain orthologous genes have been identified in 11 plant species. Like their animal counterparts, phytocalpains have significant homology within the catalytic domain, but lack the conserved calcium-binding domain IV, and some members have an N-terminal transmembrane receptor-like domain.
ISSN:1360-1385
1878-4372
DOI:10.1016/S1360-1385(02)00011-0