The Drosophila TRPL ion channel shares a Rab-dependent translocation pathway with rhodopsin
pmid: 21507505
The Drosophila TRPL ion channel shares a Rab-dependent translocation pathway with rhodopsin
The Drosophila visual transduction cascade is embedded in the rhabdomeres of photoreceptor cells and culminates in the opening of the two ion channels, TRP and TRPL. TRPL translocates from the rhabdomeres to the cell body upon illumination and vice versa when flies are kept in the dark. Here, we studied the mechanisms underlying the light-dependent internalization of TRPL. Co-localization of TRPL and rhodopsin in endocytic particles revealed that TRPL is internalized by a vesicular transport pathway that is also utilized, at least partially, for rhodopsin endocytosis. TRPL internalization is attenuated under light conditions that result in a high rate of rhodopsin internalization and is highest in orange light that result in very little rhodopsin internalization. In line with a canonical vesicular transport pathway, we found that rab proteins, Rab5 and RabX4, are required for the internalization of TRPL into the cell body. Our results provide insight into stimulus-dependent internalization of a prominent member of the TRP superfamily.
- Drittes Physikalisches Institut Germany
- University of Hohenheim Germany
- Ludwig-Maximilians-Universität München Germany
Rhodopsin, Arrestins, Immunohistochemistry, Protein Transport, Drosophila melanogaster, Transient Receptor Potential Channels, rab GTP-Binding Proteins, Animals, Drosophila Proteins, Photoreceptor Cells, Invertebrate, Vision, Ocular, Signal Transduction, rab5 GTP-Binding Proteins
Rhodopsin, Arrestins, Immunohistochemistry, Protein Transport, Drosophila melanogaster, Transient Receptor Potential Channels, rab GTP-Binding Proteins, Animals, Drosophila Proteins, Photoreceptor Cells, Invertebrate, Vision, Ocular, Signal Transduction, rab5 GTP-Binding Proteins
17 Research products, page 1 of 2
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2018IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsAmongTopNSimilarDocuments
- 2018IsRelatedTo
- 2017IsRelatedTo
- 2018IsRelatedTo
- 2017IsRelatedTo
chevron_left - 1
- 2
chevron_right
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).23 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
