Types of motors found in eukaryotic organisms. Examples are given from Arabidopsis except for dynein that has not been identified in the Arabidopsis genome. Domains are as shown in the key. Dynein, The protein interaction domain is implicated in heavy chain-heavy chain interaction and other protein interactions. Myosin, The myosin IQ domain binds calmodulin. Kinesins, Three major types of kinesins are represented: those with C-terminal, N-terminal, or internal-motor domain.