› 1x71

X-ray diffraction
2.1Å resolution

Crystal structure of Siderocalin (NGAL, Lipocalin 2) complexed with TRENCAM-3,2-HOPO, a cepabactin analogue

Released:
DOI: 10.2210/pdb1x71/pdb
PDB entry 1x71 coloured by chain, front view.
PDB entry 1x71 coloured by chain, side view.
PDB entry 1x71 coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Siderocalin (Lcn 2) also binds carboxymycobactins, potentially defending against mycobacterial infections through iron sequestration.
Holmes MA, Paulsene W, Jide X, Ratledge C, Strong RK
Structure 13 29-41 (2005)
PMID: 15642259

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-160356 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Neutrophil gelatinase-associated lipocalin Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 178 amino acids
Theoretical weight: 20.56 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P80188 (Residues: 21-198; Coverage: 100%)
Gene names: HNL, LCN2, NGAL
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin

Ligands and Environments

2 bound ligands:
Ligand FE 3 x FE
Ligand DB1 5 x DB1
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P41212
Unit cell:
a: 114.4Å b: 114.4Å c: 119Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.225 0.225 0.257
Expression system: Escherichia coli

Quick links

Citations

68 review citations

Siderophore-based iron acquisition and pathogen control.
Miethke et al. (2007)
67 more

3 mentions without citation

Iron traffics in circulation bound to a siderocalin (Ngal)-catechol complex.
Bao et al. (2010)
2 more