Protein-protein interactions between intermediate chains and the docking complex of Chlamydomonas flagellar outer arm dynein. 2013

Takahiro Ide, and Mikito Owa, and Stephen M King, and Ritsu Kamiya, and Ken-ichi Wakabayashi
Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan.

Outer arm dynein (OAD) is bound to specific loci on outer-doublet-microtubules by interactions at two sites: via intermediate chain 1 (IC1) and the outer dynein arm docking complex (ODA-DC). Studies using Chlamydomonas mutants have suggested that the individual sites have rather weak affinities for microtubules, and therefore strong OAD attachment to microtubules is achieved by their cooperation. To test this idea, we examined interactions between IC1, IC2 (another intermediate chain) and ODA-DC using recombinant proteins. Recombinant IC1 and IC2 were found to form a 1:1 complex, and this complex associated with ODA-DC in vitro. Binding of IC1 to mutant axonemes revealed that there are specific binding sites for IC1. From these data, we propose a novel model of OAD-outer doublet association.

UI MeSH Term Description Entries
D010940 Plant Proteins Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available. Plant Protein,Protein, Plant,Proteins, Plant
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D002846 Chromatography, Affinity A chromatographic technique that utilizes the ability of biological molecules, often ANTIBODIES, to bind to certain ligands specifically and reversibly. It is used in protein biochemistry. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Chromatography, Bioaffinity,Immunochromatography,Affinity Chromatography,Bioaffinity Chromatography
D004398 Dyneins A family of multi-subunit cytoskeletal motor proteins that use the energy of ATP hydrolysis, generated by a ring of AAA ATPASES in the dynein heavy chain, to power a variety of cellular functions. Dyneins fall into two major classes based upon structural and functional criteria. ATPase, Dynein,Adenosinetriphosphatase, Dynein,Dynein,Dynein ATPase,Dynein Adenosinetriphosphatase,Dynein Heavy Chain,Dynein Intermediate Chain,Dynein Light Chain,Dynein Light Intermediate Chain,Adenosine Triphosphatase, Dynein,Dynein Heavy Chains,Dynein Intermediate Chains,Dynein Light Chains,Dynein Light Intermediate Chains,Chain, Dynein Heavy,Chain, Dynein Intermediate,Chain, Dynein Light,Chains, Dynein Heavy,Chains, Dynein Intermediate,Chains, Dynein Light,Dynein Adenosine Triphosphatase,Heavy Chain, Dynein,Heavy Chains, Dynein,Intermediate Chain, Dynein,Intermediate Chains, Dynein,Light Chain, Dynein,Light Chains, Dynein
D005407 Flagella A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed) Flagellum
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D016825 Chlamydomonas reinhardtii A species of GREEN ALGAE. Delicate, hairlike appendages arise from the flagellar surface in these organisms. Chlamydomonas reinhardii,Chlamydomonas reinhardius,Chlamydomonas reinhardtius,reinhardius, Chlamydomonas,reinhardtii, Chlamydomonas
D054468 Axoneme A bundle of MICROTUBULES and MICROTUBULE-ASSOCIATED PROTEINS forming the core of each CILIUM or FLAGELLUM. In most eukaryotic cilia or flagella, an axoneme shaft has 20 microtubules arranged in nine doublets and two singlets. Axonemes
D061987 Sf9 Cells Cell line derived from SF21 CELLS which are a cell line isolated from primary explants of SPODOPTERA FRUGIPERDA pupal tissue. Sf21 Cell,Sf9 Cell,Spodoptera frugiperda 21 Cell,Spodoptera frugiperda 9 Cell,Sf21 Cells,Spodoptera frugiperda 21 Cells,Spodoptera frugiperda 9 Cells,Cell, Sf21,Cell, Sf9,Cells, Sf21,Cells, Sf9

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