Structural classification of plant chitinases: two subclasses in class I and class II chitinases.
For the classification of plant chitinases, phylogenetic relationships were analyzed besides the established classification of domain structure and C-terminal extension sequences. Two genetically different subclasses (high and low molecular weight) were found for the main structure of class I and class II chitinases in their phylogenetic trees. The genetic distance of these subclasses showed that the high molecular weight subclass may be an ancestral molecule.
Araki
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Department of Biochemistry, School of Agriculture, Kyushu Tokai University, Kumamoto, Japan.
Torikata
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D000595:Amino Acid Sequence; D001483:Base Sequence; D002688:Chitinases / Q000737:chemistry* / Q000145:classification / Q000235:genetics; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry* / Q000145:classification / Q000235:genetics
D010940:Plant Proteins; D002688:Chitinases