1ijf: Difference between revisions
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|PDB= 1ijf |SIZE=350|CAPTION= <scene name='initialview01'>1ijf</scene>, resolution 3.00Å | |PDB= 1ijf |SIZE=350|CAPTION= <scene name='initialview01'>1ijf</scene>, resolution 3.00Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand= | |LIGAND= <scene name='pdbligand=G25:GUANOSINE-5'-MONOPHOSPHATE'>G25</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= TEF5 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | |GENE= TEF5 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1f60|1f60]], [[1g7c|1g7c]], [[1ije|1IJE]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ijf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ijf OCA], [http://www.ebi.ac.uk/pdbsum/1ijf PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ijf RCSB]</span> | |||
}} | }} | ||
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[[Category: Pedersen, L.]] | [[Category: Pedersen, L.]] | ||
[[Category: Valente, L.]] | [[Category: Valente, L.]] | ||
[[Category: protein complex]] | [[Category: protein complex]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:20:41 2008'' | ||
Revision as of 21:20, 30 March 2008
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| , resolution 3.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Gene: | TEF5 (Saccharomyces cerevisiae) | ||||||
| Related: | 1f60, 1g7c, 1IJE
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Nucleotide exchange mechanisms in the eEF1A-eEF1Ba complex
OverviewOverview
In the elongation cycle of protein biosynthesis, the nucleotide exchange factor eEF1Balpha catalyzes the exchange of GDP bound to the G-protein, eEF1A, for GTP. To obtain more information about the recently solved eEF1A-eEF1Balpha structure, we determined the structures of the eEF1A-eEF1Balpha-GDP-Mg2+, eEF1A-eEF1Balpha-GDP and eEF1A-eEF1Balpha-GDPNP complexes at 3.0, 2.4 and 2.05 A resolution, respectively. Minor changes, specifically around the nucleotide binding site, in eEF1A and eEF1Balpha are consistent with in vivo data. The base, sugar and alpha-phosphate bind as in other known nucleotide G-protein complexes, whereas the beta- and gamma-phosphates are disordered. A mutation of Lys 205 in eEF1Balpha that inserts into the Mg2+ binding site of eEF1A is lethal. This together with the structures emphasizes the essential role of Mg2+ in nucleotide exchange in the eEF1A-eEF1Balpha complex.
About this StructureAbout this Structure
1IJF is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structures of nucleotide exchange intermediates in the eEF1A-eEF1Balpha complex., Andersen GR, Valente L, Pedersen L, Kinzy TG, Nyborg J, Nat Struct Biol. 2001 Jun;8(6):531-4. PMID:11373622
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