title: Comparative analysis of plant and animal calcium signal transduction element using plant full-length cDNA data.
abstract: We obtained 32K full-length cDNA sequence data from the rice full-length cDNA project and performed a homology search against NCBI GenBank data. We have also searched homologs of Arabidopsis and other plants' genes with the databases. Comparative analysis of calcium ion transport proteins revealed that the genes specific for muscle and nerve calcium signal transduction systems (VDCC, IP3 receptor, ryanodine receptor) are very different in animals and plants. In contrast, Ca elements with basic functions in cell responses (CNGC, iGlu receptor, Ca(2+)ATPase, Ca2+/Na(+)-K+ ion exchanger) are basically conserved between plants and animals. We also performed comparative analyses of calcium ion binding and/or controlling signal transduction proteins. Many genes specific for muscle and nerve tissue do not exist in plants. However, calcium ion signal transduction genes of basic functions of cell homeostasis and responses were well conserved; plants have developed a calcium ion interacting system that is more direct than in animals. Many species of plants have specifically modified calcium ion binding proteins (CPK, CRK), Ca2+/phospholipid-binding domains, and calcium storage proteins.
authors.affiliation: Department of Molecular Genetics, National Institute of Agrobiological Sciences, 2-1-2 Kannon dai, Tsukuba, Ibaraki, 305-8602 Japan.
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Nagata
authors.forename: Shigemi
authors.initials: S
authors.lastname: Iizumi
authors.forename: Kouji
authors.initials: K
authors.lastname: Satoh
authors.forename: Hisako
authors.initials: H
authors.lastname: Ooka
authors.forename: Jun
authors.initials: J
authors.lastname: Kawai
authors.forename: Piero
authors.initials: P
authors.lastname: Carninci
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Hayashizaki
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Otomo
authors.forename: Kazuo
authors.initials: K
authors.lastname: Murakami
authors.forename: Kenichi
authors.initials: K
authors.lastname: Matsubara
authors.forename: Shoshi
authors.initials: S
authors.lastname: Kikuchi
mesh_terms: D000818:Animals; D017360:Arabidopsis / Q000235:genetics* / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D015220:Calcium Channels / Q000235:genetics / Q000378:metabolism; D002135:Calcium-Binding Proteins / Q000235:genetics / Q000378:metabolism; D003546:Cysteine Endopeptidases / Q000235:genetics / Q000378:metabolism; D018076:DNA, Complementary; D030562:Databases, Protein; D004705:Endocytosis / Q000235:genetics / Q000502:physiology; D006801:Humans; D019255:NADPH Oxidases / Q000235:genetics / Q000378:metabolism; D012275:Oryza / Q000235:genetics* / Q000378:metabolism; D017433:Protein Structure, Secondary; D015398:Signal Transduction / Q000235:genetics* / Q000502:physiology
chemical_list: D015220:Calcium Channels; D002135:Calcium-Binding Proteins; D018076:DNA, Complementary; D019255:NADPH Oxidases; D003546:Cysteine Endopeptidases; D002118:Calcium