› 1a4b

X-ray diffraction
1.91Å resolution

AZURIN MUTANT WITH MET 121 REPLACED BY HIS, PH 6.5 CRYSTAL FORM, DATA COLLECTED AT-180 DEGREES CELSIUS

Released:
DOI: 10.2210/pdb1a4b/pdb
PDB entry 1a4b coloured by chain, front view.
PDB entry 1a4b coloured by chain, side view.
PDB entry 1a4b coloured by chain, top view.
Source organism: Achromobacter denitrificans
Primary publication:
Rack-induced metal binding vs. flexibility: Met121His azurin crystal structures at different pH.
Messerschmidt A, Prade L, Kroes SJ, Sanders-Loehr J, Huber R, Canters GW
Proc Natl Acad Sci U S A 95 3443-8 (1998)
PMID: 9520385

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-132368 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Azurin Chains: A, B
Molecule details ›
Chains: A, B
Length: 129 amino acids
Theoretical weight: 14 KDa
Source organism: Achromobacter denitrificans
Expression system: Escherichia coli
UniProt:
  • Canonical: P00280 (Residues: 21-149; Coverage: 100%)
Gene name: azu
Sequence domains: Copper binding proteins, plastocyanin/azurin family
Structure domains: Cupredoxins - blue copper proteins

Ligands and Environments

2 bound ligands:
Ligand CU 2 x CU
Ligand SO4 2 x SO4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH2R
Spacegroup: C2221
Unit cell:
a: 74.56Å b: 73.57Å c: 97.63Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.202 0.202 not available
Expression system: Escherichia coli

Quick links

Citations

5 review citations

Metalloproteins containing cytochrome, iron-sulfur, or copper redox centers.
Liu et al. (2014)
4 more

5 mentions without citation

A molecular understanding of alphavirus entry and antibody protection.
Kim et al. (2023)
4 more