3D4L

Human dipeptidyl peptidase IV/CD26 in complex with a novel inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.220 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 2.2 of the entry. See complete history


Literature

Discovery of new binding elements in DPP-4 inhibition and their applications in novel DPP-4 inhibitor design.

Liang, G.B.Qian, X.Biftu, T.Singh, S.Gao, Y.D.Scapin, G.Patel, S.Leiting, B.Patel, R.Wu, J.Zhang, X.Thornberry, N.A.Weber, A.E.

(2008) Bioorg Med Chem Lett 18: 3706-3710

  • DOI: https://doi.org/10.1016/j.bmcl.2008.05.061
  • Primary Citation of Related Structures:  
    3D4L

  • PubMed Abstract: 

    Probing with tool molecules, and by modeling and X-ray crystallography the binding modes of two structurally distinct series of DPP-4 inhibitors led to the discovery of a rare aromatic fluorine H-bond and the spatial requirement for better biaryl binding in the DPP-4 enzyme active site. These newly found binding elements were successfully incorporated into novel DPP-4 inhibitors.


  • Organizational Affiliation

    gui-bai_liang@merck.comMerck Research Laboratories, Department of Medicinal Chemistry, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Dipeptidyl peptidase 4 soluble form
A, B
728Homo sapiensMutation(s): 1 
Gene Names: DPP4ADCP2CD26
EC: 3.4.14.5
UniProt & NIH Common Fund Data Resources
Find proteins for P27487 (Homo sapiens)
Explore P27487 
Go to UniProtKB:  P27487
GTEx:  ENSG00000197635 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27487
Glycosylation
Glycosylation Sites: 8Go to GlyGen: P27487-1
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C, F
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G07375KG
GlyCosmos:  G07375KG
GlyGen:  G07375KG
Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
D, E, G, H, I
D, E, G, H, I, J, K
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
605
Query on 605

Download Ideal Coordinates CCD File 
P [auth A],
T [auth B]
4'-[(1R)-1-amino-2-(2,5-difluorophenyl)ethyl]biphenyl-3-carboxamide
C21 H18 F2 N2 O
JYKFWUXBFJJDTP-HXUWFJFHSA-N
NAG
Query on NAG

Download Ideal Coordinates CCD File 
L [auth A]
M [auth A]
N [auth A]
Q [auth B]
R [auth B]
L [auth A],
M [auth A],
N [auth A],
Q [auth B],
R [auth B],
S [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
NA
Query on NA

Download Ideal Coordinates CCD File 
O [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
605 PDBBind:  3D4L IC50: 32 (nM) from 1 assay(s)
BindingDB:  3D4L IC50: 32 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 118.435α = 90
b = 125.749β = 90
c = 137.175γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
CNXrefinement
HKL-2000data reduction
SCALEPACKdata scaling
CNXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

  • Released Date: 2008-07-01 
  • Deposition Author(s): Scapin, G.

Revision History  (Full details and data files)

  • Version 1.0: 2008-07-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2021-10-20
    Changes: Database references, Structure summary
  • Version 2.2: 2023-08-30
    Changes: Data collection, Refinement description