A novel subunit of axonemal dynein conserved among lower and higher eukaryotes |
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Authors: | Yamamoto Ryosuke Yanagisawa Haru-aki Yagi Toshiki Kamiya Ritsu |
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Institution: | Department of Biological Sciences, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Tokyo 113-0033, Japan. |
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Abstract: | To elucidate the subunit composition of axonemal inner-arm dynein, we examined a 38 kDa protein (p38) co-purified with a Chlamydomonas inner arm subspecies, dynein d. We found it is a novel protein conserved among a variety of organisms with motile cilia and flagella. Immunoprecipitation using specific antibody verified its association with a heavy chain, actin and a previously identified light chain (p28). Unexpectedly, mutant axonemes lacking dynein d and other dyneins retained reduced amounts of p38. This finding suggests that p38 is involved in the docking of dynein d to specific loci. |
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Keywords: | Inner arm dynein Light chain p28 Actin Chlamydomonas |
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