This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1aua
From Proteopedia
| Line 7: | Line 7: | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= SEC14 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | |GENE= SEC14 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1aua FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aua OCA], [http://www.ebi.ac.uk/pdbsum/1aua PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1aua RCSB]</span> | ||
}} | }} | ||
| Line 26: | Line 29: | ||
[[Category: Phillips, S E.]] | [[Category: Phillips, S E.]] | ||
[[Category: Sha, B.]] | [[Category: Sha, B.]] | ||
| - | [[Category: BOG]] | ||
[[Category: golgi-derived secretory vesicle biogenesis]] | [[Category: golgi-derived secretory vesicle biogenesis]] | ||
[[Category: peripheral golgi membrane protein]] | [[Category: peripheral golgi membrane protein]] | ||
| Line 32: | Line 34: | ||
[[Category: phospholipid-binding protein]] | [[Category: phospholipid-binding protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 18:47:40 2008'' |
Revision as of 15:47, 30 March 2008
| |||||||
| , resolution 2.5Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | SEC14 (Saccharomyces cerevisiae) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
PHOSPHATIDYLINOSITOL TRANSFER PROTEIN SEC14P FROM SACCHAROMYCES CEREVISIAE
Overview
The yeast phosphatidylinositol-transfer protein (Sec14) catalyses exchange of phosphatidylinositol and phosphatidylcholine between membrane bilayers in vitro. In vivo, Sec14 activity is essential for vesicle budding from the Golgi complex. Here we report a three-dimensional structure for Sec14 at 2.5 A resolution. Sec14 consists of twelve alpha-helices, six beta-strands, eight 3(10)-helices and has two distinct domains. The carboxy-terminal domain forms a hydrophobic pocket which, in the crystal structure, is occupied by two molecules of n-octyl-beta-D-glucopyranoside and represents the phospholipid-binding domain. This pocket is reinforced by a string motif whose disruption in a sec14 temperature-sensitive mutant results in destabilization of the phospholipid-binding domain. Finally, we have identified an unusual surface helix that may play a critical role in driving Sec14-mediated phospholipid exchange. From this structure, we derive the first molecular clues into how a phosphatidylinositol-transfer protein functions.
About this Structure
1AUA is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
Reference
Crystal structure of the Saccharomyces cerevisiae phosphatidylinositol-transfer protein., Sha B, Phillips SE, Bankaitis VA, Luo M, Nature. 1998 Jan 29;391(6666):506-10. PMID:9461221
Page seeded by OCA on Sun Mar 30 18:47:40 2008
