› 2r50

X-ray diffraction
2.2Å resolution

The crystal structure of nonsymbiotic corn hemoglobin 1

Released:
DOI: 10.2210/pdb2r50/pdb
PDB entry 2r50 coloured by chain, front view.
PDB entry 2r50 coloured by chain, side view.
PDB entry 2r50 coloured by chain, top view.
Source organism: Zea mays subsp. parviglumis
Entry authors: Smagghe BJ, Hoy JA, Hargrove MS

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Assembly name:
PDBe Complex ID:
PDB-CPX-192368 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Anaerobic nitrite reductase GLB1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 165 amino acids
Theoretical weight: 18.3 KDa
Source organism: Zea mays subsp. parviglumis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9M593 (Residues: 1-165; Coverage: 100%)
Gene names: GLB1, HB
Sequence domains: Globin
Structure domains: Globins

Ligands and Environments

3 bound ligands:
Ligand HEM 4 x HEM
Ligand SO4 5 x SO4
Ligand ACY 2 x ACY
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P212121
Unit cell:
a: 50.754Å b: 89.734Å c: 157.424Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.203 0.201 0.253
Expression system: Escherichia coli

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