2FUL: Crystal Structure of the C-terminal Domain of S. Cerevisiae Eif5

Citation:
Abstract
eIF5, a GTPase-activating protein (GAP) specific for eIF2, plays a critical role in pre-initiation complex assembly and correct AUG selection during eukaryotic translation initiation. eIF5 is involved in the formation of the multifactor complex (MFC), an important intermediate of the 43S pre-initiation complex. The C-terminal domain (CTD) of eIF5 functions as the structural core in the MFC assembly. Here we report the 1.5A crystal structure of eIF5-CTD, confirming that eIF5-CTD contains an atypical HEAT motif. In addition, analyzing the electrostatic potential and the distribution of conserved residues on the protein surface, we confirm and suggest some potential regions of interactions between eIF5-CTD and other eIFs. The structure of eIF5-CTD provides useful information in understanding the mechanism of the MFC assembly.
PDB ID: 2FULDownload
MMDB ID: 39316
PDB Deposition Date: 2006/1/27
Updated in MMDB: 2007/10 
Experimental Method:
x-ray diffraction
Resolution: 1.5  Å
Source Organism:
Similar Structures:
Biological Unit for 2FUL: monomeric; determined by author
Molecular Components in 2FUL
Label Count Molecule
Protein (1 molecule)
1
Eukaryotic Translation Initiation Factor 5
Molecule annotation
Chemicals (4 molecules)
1
4
* Click molecule labels to explore molecular sequence information.

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