1ek0: Difference between revisions
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'''GPPNHP-BOUND YPT51 AT 1.48 A RESOLUTION''' | {{Structure | ||
|PDB= 1ek0 |SIZE=350|CAPTION= <scene name='initialview01'>1ek0</scene>, resolution 1.48Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene> and <scene name='pdbligand=GDP:GUANOSINE-5'-DIPHOSPHATE'>GDP</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''GPPNHP-BOUND YPT51 AT 1.48 A RESOLUTION''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1EK0 is a [ | 1EK0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EK0 OCA]. | ||
==Reference== | ==Reference== | ||
High-resolution crystal structure of S. cerevisiae Ypt51(DeltaC15)-GppNHp, a small GTP-binding protein involved in regulation of endocytosis., Esters H, Alexandrov K, Constantinescu AT, Goody RS, Scheidig AJ, J Mol Biol. 2000 Apr 21;298(1):111-21. PMID:[http:// | High-resolution crystal structure of S. cerevisiae Ypt51(DeltaC15)-GppNHp, a small GTP-binding protein involved in regulation of endocytosis., Esters H, Alexandrov K, Constantinescu AT, Goody RS, Scheidig AJ, J Mol Biol. 2000 Apr 21;298(1):111-21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10756108 10756108] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: ypt/rab protein]] | [[Category: ypt/rab protein]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:56:40 2008'' | ||
Revision as of 11:56, 20 March 2008
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| , resolution 1.48Å | |||||||
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| Ligands: | , , and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
GPPNHP-BOUND YPT51 AT 1.48 A RESOLUTION
OverviewOverview
Ypt/Rab proteins are membrane-associated small GTP-binding proteins which play a central role in the coordination, activation and regulation of vesicle-mediated transport in eukaryotic cells. We present the 1.5 A high-resolution crystal structure of Ypt51 in its active, GppNHp-bound conformation. Ypt51 is an important regulator involved in the endocytic membrane traffic of Saccharomyces cerevisiae. The structure reveals small but significant structural differences compared with H-Ras p21. The effector loop and the catalytic loop are well defined and stabilized by extensive hydrophobic interactions. The switch I and switch II regions form a well-defined epitope for hypothetical effector protein binding. Sequence comparisons between the different isoforms Ypt51, Ypt52 and Ypt53 provide the first insights into determinants for specific effector binding and for fine-tuning of the intrinsic GTP-hydrolysis rate.
About this StructureAbout this Structure
1EK0 is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
ReferenceReference
High-resolution crystal structure of S. cerevisiae Ypt51(DeltaC15)-GppNHp, a small GTP-binding protein involved in regulation of endocytosis., Esters H, Alexandrov K, Constantinescu AT, Goody RS, Scheidig AJ, J Mol Biol. 2000 Apr 21;298(1):111-21. PMID:10756108
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