1L6M

Neutrophil Gelatinase-associated Lipocalin is a Novel Bacteriostatic Agent that Interferes with Siderophore-mediated Iron Acquisition


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Neutrophil Lipocalin NGAL is a Bacteriostatic Agent that Interferes with Siderophore-mediated Iron Acquisition

Goetz, D.H.Borregaard, N.Bluhm, M.E.Raymond, K.N.Strong, R.K.

(2002) Mol.Cell 10: 1033-1043


  • PubMed Abstract: 
  • First identified as a neutrophil granule component, neutrophil gelatinase-associated lipocalin (NGAL; also called human neutrophil lipocalin, 24p3, uterocalin, or neu-related lipocalin) is a member of the lipocalin family of binding proteins. Putativ ...

    First identified as a neutrophil granule component, neutrophil gelatinase-associated lipocalin (NGAL; also called human neutrophil lipocalin, 24p3, uterocalin, or neu-related lipocalin) is a member of the lipocalin family of binding proteins. Putative NGAL ligands, including neutrophil chemotactic agents such as N-formylated tripeptides, have all been refuted by recent biochemical and structural results. NGAL has subsequently been implicated in diverse cellular processes, but without a characterized ligand, the molecular basis of these functions remained mysterious. Here we report that NGAL tightly binds bacterial catecholate-type ferric siderophores through a cyclically permuted, hybrid electrostatic/cation-pi interaction and is a potent bacteriostatic agent in iron-limiting conditions. We therefore propose that NGAL participates in the antibacterial iron depletion strategy of the innate immune system.


    Related Citations: 
    • Ligand preference inferred from the structure of Neutrophil Gelatinase Associated Lipocalin (NGAL)
      Goetz, D.H.,Willie, S.T.,Armen, R.,Bratt, T.,Borregaard, N.,Strong, R.K.
      (2000) Biochemistry 39: 1935


    Organizational Affiliation

    Molecular and Cellular Biology Program, Fred Hutchinson Cancer Research Center, Box 357275, University of Washington, Seattle, WA 98105, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Neutrophil gelatinase-associated lipocalin
A, B, C
180Homo sapiensGene Names: LCN2 (HNL, NGAL)
Find proteins for P80188 (Homo sapiens)
Go to Gene View: LCN2
Go to UniProtKB:  P80188
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DBS
Query on DBS

Download SDF File 
Download CCD File 
A, B, C
2-(2,3-DIHYDROXY-BENZOYLAMINO)-3-HYDROXY-PROPIONIC ACID
2,3,-DIHYDROXYBENZOYLSERINE
C10 H11 N O6
VDTYHTVHFIIEIL-LURJTMIESA-N
 Ligand Interaction
SO4
Query on SO4

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Download CCD File 
A, C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
DBH
Query on DBH

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Download CCD File 
A, B, C
2,3-DIHYDROXY-BENZOIC ACID
C7 H6 O4
GLDQAMYCGOIJDV-UHFFFAOYSA-N
 Ligand Interaction
FE
Query on FE

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Download CCD File 
A, B, C
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
DBHKd: 7.9 nM BINDINGMOAD
DBHKd: 7.9 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.232 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 115.078α = 90.00
b = 115.078β = 90.00
c = 115.221γ = 90.00
Software Package:
Software NamePurpose
EPMRphasing
DENZOdata reduction
HKL-2000data scaling
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-03-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance