5K0Z

Cryo-EM structure of lactate dehydrogenase (LDH) in inhibitor-bound state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Breaking Cryo-EM Resolution Barriers to Facilitate Drug Discovery.

Merk, A.Bartesaghi, A.Banerjee, S.Falconieri, V.Rao, P.Davis, M.I.Pragani, R.Boxer, M.B.Earl, L.A.Milne, J.L.Subramaniam, S.

(2016) Cell 165: 1698-1707

  • DOI: 10.1016/j.cell.2016.05.040
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Recent advances in single-particle cryoelecton microscopy (cryo-EM) are enabling generation of numerous near-atomic resolution structures for well-ordered protein complexes with sizes ≥ ∼200 kDa. Whether cryo-EM methods are equally useful for high-re ...

    Recent advances in single-particle cryoelecton microscopy (cryo-EM) are enabling generation of numerous near-atomic resolution structures for well-ordered protein complexes with sizes ≥ ∼200 kDa. Whether cryo-EM methods are equally useful for high-resolution structural analysis of smaller, dynamic protein complexes such as those involved in cellular metabolism remains an important question. Here, we present 3.8 Å resolution cryo-EM structures of the cancer target isocitrate dehydrogenase (93 kDa) and identify the nature of conformational changes induced by binding of the allosteric small-molecule inhibitor ML309. We also report 2.8-Å- and 1.8-Å-resolution structures of lactate dehydrogenase (145 kDa) and glutamate dehydrogenase (334 kDa), respectively. With these results, two perceived barriers in single-particle cryo-EM are overcome: (1) crossing 2 Å resolution and (2) obtaining structures of proteins with sizes < 100 kDa, demonstrating that cryo-EM can be used to investigate a broad spectrum of drug-target interactions and dynamic conformational states.


    Organizational Affiliation

    Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
L-lactate dehydrogenase B chain
A, B, C, D
331Gallus gallusMutation(s): 0 
Gene Names: LDHB
EC: 1.1.1.27
Find proteins for P00337 (Gallus gallus)
Go to Gene View: LDHB
Go to UniProtKB:  P00337
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-06-08
    Type: Initial release
  • Version 1.1: 2016-06-29
    Type: Database references
  • Version 1.2: 2016-11-23
    Type: Other
  • Version 1.3: 2018-07-18
    Type: Data collection, Experimental preparation