Crystal Structure of hPim-1 kinase at 2.1 A resolution

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.249 

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Structural Basis of Constitutive Activity and a Unique Nucleotide Binding Mode of Human Pim-1 Kinase.

Qian, K.C.Wang, L.Hickey, E.R.Studts, J.Barringer, K.Peng, C.Kronkaitis, A.Li, J.White, A.Mische, S.Farmer, B.

(2005) J Biol Chem 280: 6130-6137

  • DOI: https://doi.org/10.1074/jbc.M409123200

  • PubMed Abstract: 

    Pim-1 kinase is a member of a distinct class of serine/threonine kinases consisting of Pim-1, Pim-2, and Pim-3. Pim kinases are highly homologous to one another and share a unique consensus hinge region sequence, ER-PXPX, with its two proline residues separated by a non-conserved residue, but they (Pim kinases) have <30% sequence identity with other kinases. Pim-1 has been implicated in both cytokine-induced signal transduction and the development of lymphoid malignancies. We have determined the crystal structures of apo Pim-1 kinase and its AMP-PNP (5'-adenylyl-beta,gamma-imidodiphosphate) complex to 2.1-angstroms resolutions. The structures reveal the following. 1) The kinase adopts a constitutively active conformation, and extensive hydrophobic and hydrogen bond interactions between the activation loop and the catalytic loop might be the structural basis for maintaining such a conformation. 2) The hinge region has a novel architecture and hydrogen-bonding pattern, which not only expand the ATP pocket but also serve to establish unambiguously the alignment of the Pim-1 hinge region with that of other kinases. 3) The binding mode of AMP-PNP to Pim-1 kinase is unique and does not involve a critical hinge region hydrogen bond interaction. Analysis of the reported Pim-1 kinase-domain structures leads to a hypothesis as to how Pim kinase activity might be regulated in vivo.

  • Organizational Affiliation

    Departments of Medicinal Chemistry and Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals, Inc., Research and Development, 175 Briar Ridge Rd., Ridgefield, CT 06877, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Proto-oncogene serine/threonine-protein kinase Pim-1300Homo sapiensMutation(s): 0 
Gene Names: PIM1
UniProt & NIH Common Fund Data Resources
Find proteins for P11309 (Homo sapiens)
Explore P11309 
Go to UniProtKB:  P11309
PHAROS:  P11309
GTEx:  ENSG00000137193 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP11309
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.249 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.9α = 90
b = 95.9β = 90
c = 79.96γ = 120
Software Package:
Software NamePurpose
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-11-09
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2018-01-31
    Changes: Experimental preparation
  • Version 1.5: 2024-02-14
    Changes: Data collection, Database references