Crystal structure of human AK4(L171P)

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 

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Crystal structure of human adenylate kinase 4 (L171P) suggests the role of hinge region in protein domain motion

Liu, R.Xu, H.Wei, Z.Wang, Y.Lin, Y.Gong, W.

(2009) Biochem Biophys Res Commun 379: 92-97

  • DOI: https://doi.org/10.1016/j.bbrc.2008.12.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    It is well known that motion of LID and NMP-binding (NMP(bind)) domains in adenylate kinase (AK) is important in ligand binding and catalysis. However, the nature of such domain motions is poorly characterized. One of the critical hinge regions is hinge IV, which connects the CORE and LID domains. In addition, the hinge IV contains a strictly conserved residue, L171, in the AK family. To investigate the role of hinge IV, crystal structure of human adenylate kinase 4 (AK4) L171P mutant was determined. This mutation dramatically changes the orientation of the LID domain, which could be described as a novel twisted-and-closed conformation in contrast to the open and closed conformations in other AKs. This mutant provides a new example of domain motions in AK family.

  • Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, People's Republic of China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Adenylate kinase isoenzyme 4
A, B
231Homo sapiensMutation(s): 1 
Gene Names: AK4
UniProt & NIH Common Fund Data Resources
Find proteins for P27144 (Homo sapiens)
Explore P27144 
Go to UniProtKB:  P27144
PHAROS:  P27144
GTEx:  ENSG00000162433 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27144
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.79α = 90
b = 77.79β = 90
c = 144.64γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description
  • Version 1.3: 2024-03-20
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-04-03
    Changes: Refinement description