4FDC

Crystal structure of the E493V mutant of human apoptosis inducing factor (AIF)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.253 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Cowchock syndrome is associated with a mutation in apoptosis-inducing factor.

Rinaldi, C.Grunseich, C.Sevrioukova, I.F.Schindler, A.Horkayne-Szakaly, I.Lamperti, C.Landoure, G.Kennerson, M.L.Burnett, B.G.Bonnemann, C.Biesecker, L.G.Ghezzi, D.Zeviani, M.Fischbeck, K.H.

(2012) Am.J.Hum.Genet. 91: 1095-1102

  • DOI: 10.1016/j.ajhg.2012.10.008

  • PubMed Abstract: 
  • Cowchock syndrome (CMTX4) is a slowly progressive X-linked recessive disorder with axonal neuropathy, deafness, and cognitive impairment. The disease locus was previously mapped to an 11 cM region at chromosome X: q24-q26. Exome sequencing of an affe ...

    Cowchock syndrome (CMTX4) is a slowly progressive X-linked recessive disorder with axonal neuropathy, deafness, and cognitive impairment. The disease locus was previously mapped to an 11 cM region at chromosome X: q24-q26. Exome sequencing of an affected individual from the originally described family identified a missense change c.1478A>T (p.Glu493Val) in AIFM1, the gene encoding apoptosis-inducing factor (AIF) mitochondrion-associated 1. The change is at a highly conserved residue and cosegregated with the phenotype in the family. AIF is an FAD-dependent NADH oxidase that is imported into mitochondria. With apoptotic insults, a N-terminal transmembrane linker is cleaved off, producing a soluble fragment that is released into the cytosol and then transported into the nucleus, where it triggers caspase-independent apoptosis. Another AIFM1 mutation that predicts p.Arg201del has recently been associated with severe mitochondrial encephalomyopathy in two infants by impairing oxidative phosphorylation. The c.1478A>T (p.Glu493Val) mutation found in the family reported here alters the redox properties of the AIF protein and results in increased cell death via apoptosis, without affecting the activity of the respiratory chain complexes. Our findings expand the spectrum of AIF-related disease and provide insight into the effects of AIFM1 mutations.


    Organizational Affiliation

    Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-3705, USA. rinaldic@ninds.nih.gov




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Apoptosis-inducing factor 1, mitochondrial
B
514Homo sapiensMutation(s): 1 
Gene Names: AIFM1 (AIF, PDCD8)
EC: 1.1.1.-
Find proteins for O95831 (Homo sapiens)
Go to Gene View: AIFM1
Go to UniProtKB:  O95831
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
B
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.253 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 102.400α = 90.00
b = 62.700β = 118.57
c = 101.922γ = 90.00
Software Package:
Software NamePurpose
Blu-Icedata collection
PHASERphasing
REFMACrefinement
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-05-27 
  • Released Date: 2012-10-17 
  • Deposition Author(s): Sevrioukova, I.F.

Revision History 

  • Version 1.0: 2012-10-17
    Type: Initial release
  • Version 1.1: 2013-01-02
    Type: Database references