2GBC

Native DPP-IV (CD26) from Rat


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structures of DPP-IV (CD26) from Rat Kidney Exhibit Flexible Accommodation of Peptidase-Selective Inhibitors.

Longenecker, K.L.Stewart, K.D.Madar, D.J.Jakob, C.G.Fry, E.H.Wilk, S.Lin, C.W.Ballaron, S.J.Stashko, M.A.Lubben, T.H.Yong, H.Pireh, D.Pei, Z.Basha, F.Wiedeman, P.E.Von Geldern, T.W.Trevillyan, J.M.Stoll, V.S.

(2006) Biochemistry 45: 7474-7482

  • DOI: 10.1021/bi060184f
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Dipeptidyl peptidase IV (DPP-IV) belongs to a family of serine peptidases, and due to its indirect regulatory role in plasma glucose modulation, DPP-IV has become an attractive pharmaceutical target for diabetes therapy. DPP-IV inactivates the glucag ...

    Dipeptidyl peptidase IV (DPP-IV) belongs to a family of serine peptidases, and due to its indirect regulatory role in plasma glucose modulation, DPP-IV has become an attractive pharmaceutical target for diabetes therapy. DPP-IV inactivates the glucagon-like peptide (GLP-1) and several other naturally produced bioactive peptides that contain preferentially a proline or alanine residue in the second amino acid sequence position by cleaving the N-terminal dipeptide. To elucidate the details of the active site for structure-based drug design, we crystallized a natural source preparation of DPP-IV isolated from rat kidney and determined its three-dimensional structure using X-ray diffraction techniques. With a high degree of similarity to structures of human DPP-IV, the active site architecture provides important details for the design of inhibitory compounds, and structures of inhibitor-protein complexes offer detailed insight into three-dimensional structure-activity relationships that include a conformational change of Tyr548. Such accommodation is exemplified by the response to chemical substitution on 2-cyanopyrrolidine inhibitors at the 5 position, which conveys inhibitory selectivity for DPP-IV over closely related homologues. A similar conformational change is also observed in the complex with an unrelated synthetic inhibitor containing a xanthine core that is also selective for DPP-IV. These results suggest the conformational flexibility of Tyr548 is unique among protein family members and may be utilized in drug design to achieve peptidase selectivity.


    Organizational Affiliation

    Department of Structural Biology, Global Pharmaceutical Research and Development, Abbott Laboratories, Abbott Park, Illinois 60064-6098, USA. Kenton.Longenecker@Abbott.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dipeptidyl peptidase 4
A, B
730Rattus norvegicusMutation(s): 0 
Gene Names: Dpp4 (Cd26)
EC: 3.4.14.5
Find proteins for P14740 (Rattus norvegicus)
Go to UniProtKB:  P14740
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDG
Query on NDG

Download SDF File 
Download CCD File 
A, B
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.229 
  • Space Group: P 21 3
Unit Cell:
Length (Å)Angle (°)
a = 208.152α = 90.00
b = 208.152β = 90.00
c = 208.152γ = 90.00
Software Package:
Software NamePurpose
SOLVEphasing
SCALEPACKdata scaling
HKL-2000data reduction
CNSrefinement
DENZOdata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-07-04
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance
  • Version 1.3: 2017-10-18
    Type: Refinement description