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Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin
Dynactin is a multisubunit protein complex required for the activity of cytoplasmic dynein. In Caenorhabditis elegans, although 10 of the 11 dynactin subunits were identified based on the sequence similarities to their orthologs, the p24/p22 subunit has not been detected in the genome. Here, we demo...
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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Blackwell Publishing Ltd
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036819/ https://www.ncbi.nlm.nih.gov/pubmed/20964796 http://dx.doi.org/10.1111/j.1365-2443.2010.01451.x |
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author | Terasawa, Masahiro Toya, Mika Motegi, Fumio Mana, Miyeko Nakamura, Kuniaki Sugimoto, Asako |
author_facet | Terasawa, Masahiro Toya, Mika Motegi, Fumio Mana, Miyeko Nakamura, Kuniaki Sugimoto, Asako |
author_sort | Terasawa, Masahiro |
collection | PubMed |
description | Dynactin is a multisubunit protein complex required for the activity of cytoplasmic dynein. In Caenorhabditis elegans, although 10 of the 11 dynactin subunits were identified based on the sequence similarities to their orthologs, the p24/p22 subunit has not been detected in the genome. Here, we demonstrate that DNC-3 (W10G11.20) is the functional counterpart of the p24/p22 subunit in C. elegans. RNAi phenotypes and subcellular localization of DNC-3 in early C. elegans embryos were nearly identical to those of the known dynactin components. All other dynactin subunits were co-immunoprecipitated with DNC-3, indicating that DNC-3 is a core component of dynactin. Furthermore, the overall secondary structure of DNC-3 resembles to those of the mammalian and yeast p24/p22. We found that DNC-3 is required for the localization of the DNC-1/p150(Glued) and DNC-2/dynamitin, the two components of the projection arm of dynactin, to the nuclear envelope of meiotic nuclei in the adult gonad. Moreover, DNC-3 physically interacted with DNC-1 and DNC-2 and significantly enhanced the binding ability between DNC-1 and DNC-2 in vitro. These results suggest that DNC-3 is essential for the formation of the projection arm subcomplex of dynactin. |
format | Text |
id | pubmed-3036819 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Blackwell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-30368192011-02-15 Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin Terasawa, Masahiro Toya, Mika Motegi, Fumio Mana, Miyeko Nakamura, Kuniaki Sugimoto, Asako Genes Cells Original Articles Dynactin is a multisubunit protein complex required for the activity of cytoplasmic dynein. In Caenorhabditis elegans, although 10 of the 11 dynactin subunits were identified based on the sequence similarities to their orthologs, the p24/p22 subunit has not been detected in the genome. Here, we demonstrate that DNC-3 (W10G11.20) is the functional counterpart of the p24/p22 subunit in C. elegans. RNAi phenotypes and subcellular localization of DNC-3 in early C. elegans embryos were nearly identical to those of the known dynactin components. All other dynactin subunits were co-immunoprecipitated with DNC-3, indicating that DNC-3 is a core component of dynactin. Furthermore, the overall secondary structure of DNC-3 resembles to those of the mammalian and yeast p24/p22. We found that DNC-3 is required for the localization of the DNC-1/p150(Glued) and DNC-2/dynamitin, the two components of the projection arm of dynactin, to the nuclear envelope of meiotic nuclei in the adult gonad. Moreover, DNC-3 physically interacted with DNC-1 and DNC-2 and significantly enhanced the binding ability between DNC-1 and DNC-2 in vitro. These results suggest that DNC-3 is essential for the formation of the projection arm subcomplex of dynactin. Blackwell Publishing Ltd 2010-11 /pmc/articles/PMC3036819/ /pubmed/20964796 http://dx.doi.org/10.1111/j.1365-2443.2010.01451.x Text en Journal compilation © 2010 by the Molecular Biology Society of Japan/Blackwell Publishing Ltd http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. |
spellingShingle | Original Articles Terasawa, Masahiro Toya, Mika Motegi, Fumio Mana, Miyeko Nakamura, Kuniaki Sugimoto, Asako Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title | Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title_full | Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title_fullStr | Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title_full_unstemmed | Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title_short | Caenorhabditis elegans ortholog of the p24/p22 subunit, DNC-3, is essential for the formation of the dynactin complex by bridging DNC-1/p150(Glued) and DNC-2/dynamitin |
title_sort | caenorhabditis elegans ortholog of the p24/p22 subunit, dnc-3, is essential for the formation of the dynactin complex by bridging dnc-1/p150(glued) and dnc-2/dynamitin |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036819/ https://www.ncbi.nlm.nih.gov/pubmed/20964796 http://dx.doi.org/10.1111/j.1365-2443.2010.01451.x |
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