1X70 | pdb_00001x70

HUMAN DIPEPTIDYL PEPTIDASE IV IN COMPLEX WITH A BETA AMINO ACID INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 
    0.228 (Depositor), 0.227 (DCC) 
  • R-Value Work: 
    0.193 (Depositor), 0.191 (DCC) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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Ligand Structure Quality Assessment 


This is version 2.3 of the entry. See complete history

Literature

(2R)-4-Oxo-4-[3-(Trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin- 7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine: A Potent, Orally Active Dipeptidyl Peptidase IV Inhibitor for the Treatment of Type 2 Diabetes

Kim, D.Wang, L.Beconi, M.Eiermann, G.J.Fisher, M.H.He, H.Hickey, G.J.Kowalchick, J.E.Leiting, B.Lyons, K.Marsilio, F.McCann, M.E.Patel, R.A.Petrov, A.Scapin, G.Patel, S.B.Roy, R.S.Wu, J.K.Wyvratt, M.J.Zhang, B.B.Zhu, L.Thornberry, N.A.Weber, A.E.

(2005) J Med Chem 48: 141-151

  • DOI: https://doi.org/10.1021/jm0493156
  • Primary Citation Related Structures: 
    1X70

  • PubMed Abstract: 

    A novel series of beta-amino amides incorporating fused heterocycles, i.e., triazolopiperazines, were synthesized and evaluated as inhibitors of dipeptidyl peptidase IV (DPP-IV) for the treatment of type 2 diabetes. (2R)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine (1) is a potent, orally active DPP-IV inhibitor (IC(50) = 18 nM) with excellent selectivity over other proline-selective peptidases, oral bioavailability in preclinical species, and in vivo efficacy in animal models. MK-0431, the phosphate salt of compound 1, was selected for development as a potential new treatment for type 2 diabetes.


  • Organizational Affiliation
    • Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., Rahway, New Jersey 07065, USA. dooseop_kim@merck.com

Macromolecule Content 

  • Total Structure Weight: 174.94 kDa 
  • Atom Count: 13,430 
  • Modeled Residue Count: 1,456 
  • Deposited Residue Count: 1,456 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Dipeptidyl peptidase IV
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
PHAROS:  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
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Reference Sequence

Oligosaccharides

Help  
Entity ID: 2
MoleculeChains Length2D Diagram GlycosylationD 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 GlycosylationD 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
715

Query on 715



Download:Ideal Coordinates CCD File
P [auth A],
T [auth B]
(2R)-4-OXO-4-[3-(TRIFLUOROMETHYL)-5,6-DIHYDRO[1,2,4]TRIAZOLO[4,3-A]PYRAZIN-7(8H)-YL]-1-(2,4,5-TRIFLUOROPHENYL)BUTAN-2-A MINE
C16 H15 F6 N5 O
MFFMDFFZMYYVKS-SECBINFHSA-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
715 BindingDB:  1X70 IC50: min: 18, max: 19 (nM) from 2 assay(s)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free:  0.228 (Depositor), 0.227 (DCC) 
  • R-Value Work:  0.193 (Depositor), 0.191 (DCC) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 118.253α = 90
b = 125.68β = 90
c = 137.206γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNXrefinement
HKL-2000data reduction
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-01-18
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2012-06-20
    Changes: Non-polymer description
  • 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: 2023-08-23
    Changes: Data collection, Refinement description
  • Version 2.3: 2024-10-30
    Changes: Structure summary