2j3r: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 5: | Line 5: | ||
==Overview== | ==Overview== | ||
Transport protein particle (TRAPP) I is a multisubunit vesicle tethering, factor composed of seven subunits involved in ER-to-Golgi trafficking. The, functional mechanism of the complex and how the subunits interact to form, a functional unit are unknown. Here, we have used a multidisciplinary, approach that includes X-ray crystallography, electron microscopy, biochemistry, and yeast genetics to elucidate the architecture of TRAPP I., The complex is organized through lateral juxtaposition of the subunits, into a flat and elongated particle. We have also localized the site of, guanine nucleotide exchange activity to a highly conserved surface, encompassing several subunits. We propose that TRAPP I attaches to Golgi, membranes with its large flat surface containing many highly conserved, .. | Transport protein particle (TRAPP) I is a multisubunit vesicle tethering, factor composed of seven subunits involved in ER-to-Golgi trafficking. The, functional mechanism of the complex and how the subunits interact to form, a functional unit are unknown. Here, we have used a multidisciplinary, approach that includes X-ray crystallography, electron microscopy, biochemistry, and yeast genetics to elucidate the architecture of TRAPP I., The complex is organized through lateral juxtaposition of the subunits, into a flat and elongated particle. We have also localized the site of, guanine nucleotide exchange activity to a highly conserved surface, encompassing several subunits. We propose that TRAPP I attaches to Golgi, membranes with its large flat surface containing many highly conserved, residues and forms a platform for protein-protein interactions. This study, provides the most comprehensive view of a multisubunit vesicle tethering, complex to date, based on which a model for the function of this complex, involving Rab1-GTP and long, coiled-coil tethers, is presented. | ||
==About this Structure== | ==About this Structure== | ||
2J3R is a | 2J3R is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Danio_rerio Danio rerio] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with NO3 as [http://en.wikipedia.org/wiki/ligand ligand]. Structure known Active Site: AC1. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2J3R OCA]. | ||
==Reference== | ==Reference== | ||
| Line 28: | Line 28: | ||
[[Category: vesicle transport]] | [[Category: vesicle transport]] | ||
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 5 14:07:25 2007'' | ||
