1LD8

Co-crystal structure of Human Farnesyltransferase with farnesyldiphosphate and inhibitor compound 49


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

3-Aminopyrrolidinone farnesyltransferase inhibitors: design of macrocyclic compounds with improved pharmacokinetics and excellent cell potency.

Bell, I.M.Gallicchio, S.N.Abrams, M.Beese, L.S.Beshore, D.C.Bhimnathwala, H.Bogusky, M.J.Buser, C.A.Culberson, J.C.Davide, J.Ellis-Hutchings, M.Fernandes, C.Gibbs, J.B.Graham, S.L.Hamilton, K.A.Hartman, G.D.Heimbrook, D.C.Homnick, C.F.Huber, H.E.Huff, J.R.Kassahun, K.Koblan, K.S.Kohl, N.E.Lobell, R.B.Lynch Jr., J.J.Robinson, R.Rodrigues, A.D.Taylor, J.S.Walsh, E.S.Williams, T.M.Zartman, C.B.

(2002) J.Med.Chem. 45: 2388-2409

  • Primary Citation of Related Structures:  1LD7

  • PubMed Abstract: 
  • A series of macrocyclic 3-aminopyrrolidinone farnesyltransferase inhibitors (FTIs) has been synthesized. Compared with previously described linear 3-aminopyrrolidinone FTIs such as compound 1, macrocycles such as 49 combined improved pharmacokinetic ...

    A series of macrocyclic 3-aminopyrrolidinone farnesyltransferase inhibitors (FTIs) has been synthesized. Compared with previously described linear 3-aminopyrrolidinone FTIs such as compound 1, macrocycles such as 49 combined improved pharmacokinetic properties with a reduced potential for side effects. In dogs, oral bioavailability was good to excellent, and increases in plasma half-life were due to attenuated clearance. It was observed that in vivo clearance correlated with the flexibility of the molecules and this concept proved useful in the design of FTIs that exhibited low clearance, such as FTI 78. X-ray crystal structures of compounds 49 and 66 complexed with farnesyltransferase (FTase)-farnesyl diphosphate (FPP) were determined, and they provide details of the key interactions in such ternary complexes. Optimization of this 3-aminopyrrolidinone series of compounds led to significant increases in potency, providing 83 and 85, the most potent inhibitors of FTase in cells described to date.


    Organizational Affiliation

    Department of Medicinal Chemistry, Merck Research Laboratories, West Point, PA 19486, USA. ian_bell@merck.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
protein farnesyltransferase alpha subunit
A
382Homo sapiensGene Names: FNTA
EC: 2.5.1.58, 2.5.1.59
Find proteins for P49354 (Homo sapiens)
Go to Gene View: FNTA
Go to UniProtKB:  P49354
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
protein farnesyltransferase beta subunit
B
437Homo sapiensGene Names: FNTB
EC: 2.5.1.58
Find proteins for P49356 (Homo sapiens)
Go to Gene View: FNTB
Go to UniProtKB:  P49356
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SUC
Query on SUC

Download SDF File 
Download CCD File 
B
SUCROSE
C12 H22 O11
CZMRCDWAGMRECN-UGDNZRGBSA-N
 Ligand Interaction
ZN
Query on ZN

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Download CCD File 
B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
U49
Query on U49

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Download CCD File 
B
(20S)-19,20,21,22-TETRAHYDRO-19-OXO-5H-18,20-ETHANO-12,14-ETHENO-6,10-METHENO-18H-BENZ[D]IMIDAZO[4,3-K][1,6,9,12]OXATRIAZA-CYCLOOCTADECOSINE-9-CARBONITRILE
COMPOUND 49
C26 H21 N5 O2
USPFJPDEADLGIG-HSZRJFAPSA-N
 Ligand Interaction
FPP
Query on FPP

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Download CCD File 
B
FARNESYL DIPHOSPHATE
C15 H28 O7 P2
VWFJDQUYCIWHTN-YFVJMOTDSA-N
 Ligand Interaction
ACY
Query on ACY

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Download CCD File 
A
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
U49IC50: 3.5 nM BINDINGMOAD
U49IC50: 3.5 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.184 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 178.134α = 90.00
b = 178.134β = 90.00
c = 64.461γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-06-19
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance