4WNC

Crystal structure of human wild-type GAPDH at 1.99 angstroms resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.139 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A Dimer Interface Mutation in Glyceraldehyde-3-Phosphate Dehydrogenase Regulates Its Binding to AU-rich RNA.

White, M.R.Khan, M.M.Deredge, D.Ross, C.R.Quintyn, R.Zucconi, B.E.Wysocki, V.H.Wintrode, P.L.Wilson, G.M.Garcin, E.D.

(2015) J.Biol.Chem. 290: 1770-1785

  • DOI: 10.1074/jbc.M114.618165
  • Primary Citation of Related Structures:  4WNI

  • PubMed Abstract: 
  • Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is an enzyme best known for its role in glycolysis. However, extra-glycolytic functions of GAPDH have been described, including regulation of protein expression via RNA binding. GAPDH binds to numerous ...

    Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is an enzyme best known for its role in glycolysis. However, extra-glycolytic functions of GAPDH have been described, including regulation of protein expression via RNA binding. GAPDH binds to numerous adenine-uridine rich elements (AREs) from various mRNA 3'-untranslated regions in vitro and in vivo despite its lack of a canonical RNA binding motif. How GAPDH binds to these AREs is still unknown. Here we discovered that GAPDH binds with high affinity to the core ARE from tumor necrosis factor-α mRNA via a two-step binding mechanism. We demonstrate that a mutation at the GAPDH dimer interface impairs formation of the second RNA-GAPDH complex and leads to changes in the RNA structure. We investigated the effect of this interfacial mutation on GAPDH oligomerization by crystallography, small-angle x-ray scattering, nano-electrospray ionization native mass spectrometry, and hydrogen-deuterium exchange mass spectrometry. We show that the mutation does not significantly affect GAPDH tetramerization as previously proposed. Instead, the mutation promotes short-range and long-range dynamic changes in regions located at the dimer and tetramer interface and in the NAD(+) binding site. These dynamic changes are localized along the P axis of the GAPDH tetramer, suggesting that this region is important for RNA binding. Based on our results, we propose a model for sequential GAPDH binding to RNA via residues located at the dimer and tetramer interfaces.


    Organizational Affiliation

    From the Department of Chemistry and Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glyceraldehyde-3-phosphate dehydrogenase
O, A, B, C, D, E, F, G
335Homo sapiensGene Names: GAPDH (GAPD)
EC: 2.6.99.-, 1.2.1.12
Find proteins for P04406 (Homo sapiens)
Go to Gene View: GAPDH
Go to UniProtKB:  P04406
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, E, O
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

Download SDF File 
Download CCD File 
C, O
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
NAD
Query on NAD

Download SDF File 
Download CCD File 
A, B, C, D, E, O
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.139 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 132.537α = 90.00
b = 81.423β = 90.06
c = 147.802γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHASERphasing
Cootmodel building
Blu-Icedata collection
PHENIXrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-10-11 
  • Released Date: 2014-12-03 
  • Deposition Author(s): Garcin, E.D.

Revision History 

  • Version 1.0: 2014-12-03
    Type: Initial release
  • Version 1.1: 2014-12-17
    Type: Database references
  • Version 1.2: 2015-02-11
    Type: Database references
  • Version 1.3: 2017-11-22
    Type: Database references, Derived calculations, Refinement description, Source and taxonomy