Homology of a 150K cytoplasmic dynein-associated polypeptide with the Drosophila gene Glued
- PMID: 1828535
- DOI: 10.1038/351579a0
Homology of a 150K cytoplasmic dynein-associated polypeptide with the Drosophila gene Glued
Erratum in
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Homology of a 150K cytoplasmic dynein-associated polypeptide with the Drosophila gene Glued.Nature. 1992 Dec 17;360(6405):695. doi: 10.1038/360695a0. Nature. 1992. PMID: 1361213 No abstract available.
Abstract
Cytoplasmic dynein is a microtubule-activated ATPase which produces force towards the minus ends of microtubules. It is thought to be responsible for retrograde axonal transport and other aspects of organelle motility and may have a role in the poleward movement of mitotic chromosomes. Cytoplasmic dynein is an oligomeric complex of two catalytic heavy chains and a number of accessory subunits. We now report the cloning and sequencing of a complementary DNA for one of these species, a cytoplasmic dynein-associated polypeptide of relative molecular mass 150,000 (Mr 150K). A full-length cDNA was found to contain an open reading frame of 4.0 kilobases, which is predicted to encode a polypeptide of Mr 145K. It has extensive homology with the product of the Drosophila gene Glued, which encodes a polypeptide of Mr 148K. The Glued mutation is dominant, with pleiotropic developmental defects in heterozygotes and an embryonic lethal phenotype in homozygotes. As dominant mutations may involve disruption of normal protein-protein interactions, the Glued mutation should provide insight into the mode of action of cytoplasmic dynein in vivo.
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