1D7Q

HUMAN TRANSLATION INITIATION FACTOR EIF1A


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The eIF1A solution structure reveals a large RNA-binding surface important for scanning function.

Battiste, J.L.Pestova, T.V.Hellen, C.U.Wagner, G.

(2000) Mol.Cell 5: 109-119


  • PubMed Abstract: 
  • The translation initiation factor eIF1A is necessary for directing the 43S preinitiation complex from the 5' end of the mRNA to the initiation codon in a process termed scanning. We have determined the solution structure of human eIF1A, which reveals ...

    The translation initiation factor eIF1A is necessary for directing the 43S preinitiation complex from the 5' end of the mRNA to the initiation codon in a process termed scanning. We have determined the solution structure of human eIF1A, which reveals an oligonucleotide-binding (OB) fold and an additional domain. NMR titration experiments showed that eIF1A binds single-stranded RNA oligonucleotides in a site-specific, but non-sequence-specific manner, hinting at an mRNA interaction rather than specific rRNA or tRNA binding. The RNA binding surface extends over a large area covering the canonical OB fold binding site as well as a groove leading to the second domain. Site-directed mutations at multiple positions along the RNA-binding surface were defective in the ability to properly assemble preinitiation complexes at the AUG codon in vitro.


    Related Citations: 
    • Eukaryotic Ribosomes Require Initiation Factors 1 and 1A to Locate Initiation Codons
      Pestova, T.V.,Borukhov, S.I.,Hellen, C.U.T.
      (1998) Nature 394: 854


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (N-TERMINAL HISTIDINE TAG)
B
14N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TRANSLATION INITIATION FACTOR 1A
A
143Homo sapiensMutation(s): 0 
Gene Names: EIF1AX (EIF1A, EIF4C)
Find proteins for P47813 (Homo sapiens)
Go to Gene View: EIF1AX
Go to UniProtKB:  P47813
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 1D7Q Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-17
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance