1HS6

STRUCTURE OF LEUKOTRIENE A4 HYDROLASE COMPLEXED WITH BESTATIN.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of human leukotriene A(4) hydrolase, a bifunctional enzyme in inflammation.

Thunnissen, M.M.Nordlund, P.Haeggstrom, J.Z.

(2001) Nat.Struct.Mol.Biol. 8: 131-135

  • DOI: 10.1038/84117
  • Also Cited By: 3B7U, 3B7S, 3B7T, 3B7R, 2R59, 1GW6

  • PubMed Abstract: 
  • Leukotriene (LT) A(4) hydrolase/aminopeptidase (LTA4H) is a bifunctional zinc enzyme that catalyzes the biosynthesis of LTB4, a potent lipid chemoattractant involved in inflammation, immune responses, host defense against infection, and PAF-induced s ...

    Leukotriene (LT) A(4) hydrolase/aminopeptidase (LTA4H) is a bifunctional zinc enzyme that catalyzes the biosynthesis of LTB4, a potent lipid chemoattractant involved in inflammation, immune responses, host defense against infection, and PAF-induced shock. The high resolution crystal structure of LTA4H in complex with the competitive inhibitor bestatin reveals a protein folded into three domains that together create a deep cleft harboring the catalytic Zn(2+) site. A bent and narrow pocket, shaped to accommodate the substrate LTA(4), constitutes a highly confined binding region that can be targeted in the design of specific anti-inflammatory agents. Moreover, the structure of the catalytic domain is very similar to that of thermolysin and provides detailed insight into mechanisms of catalysis, in particular the chemical strategy for the unique epoxide hydrolase reaction that generates LTB(4).


    Organizational Affiliation

    Department of Biochemistry, University of Stockholm, Arrhenius Laboratories A4, S-106 91 Stockholm, Sweden. marjo@dbb.su.se




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LEUKOTRIENE A-4 HYDROLASE
A
611Homo sapiensMutation(s): 0 
Gene Names: LTA4H (LTA4)
EC: 3.3.2.6
Find proteins for P09960 (Homo sapiens)
Go to Gene View: LTA4H
Go to UniProtKB:  P09960
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
YB
Query on YB

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Download CCD File 
A
YTTERBIUM (III) ION
Yb
AWSFICBXMUKWSK-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
IMD
Query on IMD

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A
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
BES
Query on BES

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Download CCD File 
A
2-(3-AMINO-2-HYDROXY-4-PHENYL-BUTYRYLAMINO)-4-METHYL-PENTANOIC ACID
BESTATIN
C16 H24 N2 O4
VGGGPCQERPFHOB-RDBSUJKOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 67.600α = 90.00
b = 133.500β = 90.00
c = 83.400γ = 90.00
Software Package:
Software NamePurpose
MLPHAREphasing
TNTrefinement
SCALEPACKdata scaling
SHARPphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-06-24
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance