3HF6

Crystal structure of human tryptophan hydroxylase type 1 with bound LP-521834 and FE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Mechanism of Inhibition of Novel Tryptophan Hydroxylase Inhibitors Revealed by Co-crystal Structures and Kinetic Analysis

Cianchetta, G.Stouch, T.Yu, W.Shi, Z.-C.Tari, L.W.Swanson, R.V.Hunter, M.J.Hoffman, I.D.Liu, Q.

(2010) Bioorg Med Chem Lett 4: 19-26

  • DOI: 10.1016/j.bmcl.2009.07.005
  • Primary Citation of Related Structures:  
    3HF6

  • PubMed Abstract: 
  • Tryptophan hydroxylase (TPH) is a key enzyme in the synthesis of serotonin. As a neurotransmitter, serotonin plays important physiological roles both peripherally and centrally. Here we describe the discovery of substituted triazines as a novel class ...

    Tryptophan hydroxylase (TPH) is a key enzyme in the synthesis of serotonin. As a neurotransmitter, serotonin plays important physiological roles both peripherally and centrally. Here we describe the discovery of substituted triazines as a novel class of tryptophan hydroxylase inhibitors. This class of TPH inhibitors can selectively reduce serotonin levels in murine intestine after oral administration without affecting levels in the brain. These TPH inhibitors may provide novel treatments for gastrointestinal disorders associated with dysregulation of the serotonergic system, such as chemotherapy-induced emesis and irritable bowel syndrome.


    Organizational Affiliation

    Lexicon Pharmaceuticals, 350 Carter Road, Princeton, NJ 08540, USA. hjin@lexpharma.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tryptophan 5-hydroxylase 1A290Homo sapiensMutation(s): 0 
Gene Names: TPH1TPHTPRHTRPH
EC: 1.14.16.4
Find proteins for P17752 (Homo sapiens)
Explore P17752 
Go to UniProtKB:  P17752
NIH Common Fund Data Resources
PHAROS  P17752
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LX0
Query on LX0

Download CCD File 
A
4-(4-amino-6-{[(1R)-1-naphthalen-2-ylethyl]amino}-1,3,5-triazin-2-yl)-L-phenylalanine
C24 H24 N6 O2
UXYOCRLZKBFANG-VLIAUNLRSA-N
 Ligand Interaction
FE
Query on FE

Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
LX0IC50:  26   nM  Binding MOAD
LX0IC50 :  26   nM  PDBBind
LX0IC50:  26   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.199α = 90
b = 57.893β = 93
c = 55.604γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-11-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance