Structure of PIM-1 kinase crystallized in the presence of P27KIP1 Carboxy-terminal peptide

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.187 

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Cell-permeable carboxyl-terminal p27(Kip1) peptide exhibits anti-tumor activity by inhibiting Pim-1 kinase

Morishita, D.Takami, M.Yoshikawa, S.Katayama, R.Sato, S.Kukimoto-Niino, M.Umehara, T.Shirouzu, M.Sekimizu, K.Yokoyama, S.Fujita, N.

(2011) J Biol Chem 286: 2681-2688

  • DOI: https://doi.org/10.1074/jbc.M109.092452
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The incidence and death rate of prostate cancer is increasing rapidly. In addition, the low sensitivity of prostate cancer to chemotherapy makes it difficult to treat this condition. The serine/threonine kinase Pim-1 plays an important role in cell cycle progression and apoptosis inhibition, resulting in prostate tumorigenesis. Therefore, Pim-1 inhibition has been expected to be an attractive target for developing new anti-cancer drugs. However, no small compounds targeting Pim-1 have progressed to clinical use because of their lack of specificity. Here, we have reported a new cell-permeable Pim-1 inhibitory p27(Kip1) peptide that could interfere with the binding of Pim-1 to its substrates and act as an anti-cancer drug. The peptide could bind to Pim-1 and inhibit phosphorylation of endogenous p27(Kip1) and Bad by Pim-1. Treatment of prostate cancer with the peptide induces G(1) arrest and subsequently apoptosis in vitro. However, the peptide showed almost no growth inhibitory or apoptosis-inducing effects in normal cells. The peptide could inhibit tumor growth in in vivo prostate cancer xenograft models. Moreover, the peptide treatment could overcome resistance to taxol, one of the first line chemotherapeutic agents for prostate cancer, and a combination of the peptide with taxol synergistically inhibited prostate cancer growth in vivo. These results indicate that a Pim-1 inhibitory p27(Kip1) peptide could be developed as an anti-cancer drug against prostate cancer.

  • Organizational Affiliation

    Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Proto-oncogene serine/threonine-protein kinase pim-1320Homo 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
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on ANP

Download Ideal Coordinates CCD File 
C10 H17 N6 O12 P3
Query on MG

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Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.187 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 98.156α = 90
b = 98.156β = 90
c = 80.296γ = 120
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2010-11-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description