3HF6

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 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) Curr Chem Genomics 4: 19-26

  • DOI: 10.1016/j.bmcl.2009.07.005

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tryptophan 5-hydroxylase 1
A
290Homo sapiensMutation(s): 0 
Gene Names: TPH1 (TPH, TPRH, TRPH)
EC: 1.14.16.4
Find proteins for P17752 (Homo sapiens)
Go to Gene View: TPH1
Go to UniProtKB:  P17752
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FE
Query on FE

Download SDF File 
Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
LX0
Query on LX0

Download SDF File 
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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
LX0IC50: 26 nM (99) BINDINGDB
LX0IC50: 26 nM BINDINGMOAD
LX0IC50: 26 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 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 = 90.00
b = 57.893β = 93.00
c = 55.604γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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