› 3qqq

X-ray diffraction
1.84Å resolution

Crystal structure of non-symbiotic plant hemoglobin from Trema tomentosa

Released:
DOI: 10.2210/pdb3qqq/pdb
PDB entry 3qqq coloured by chain, front view.
PDB entry 3qqq coloured by chain, side view.
PDB entry 3qqq coloured by chain, top view.
Source organism: Trema tomentosum
Primary publication:
Crystal structures of Parasponia and Trema hemoglobins: differential heme coordination is linked to quaternary structure.
Kakar S, Sturms R, Tiffany A, Nix JC, DiSpirito AA, Hargrove MS
Biochemistry 50 4273-80 (2011)
PMID: 21491905

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-139766 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Anaerobic nitrite reductase GLB1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 168 amino acids
Theoretical weight: 19.1 KDa
Source organism: Trema tomentosum
Expression system: Escherichia coli
UniProt:
  • Canonical: P07803 (Residues: 1-116, 117-161; Coverage: 100%)
Gene name: GLB1
Sequence domains: Globin
Structure domains: Globins

Ligands and Environments

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

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P212121
Unit cell:
a: 55.87Å b: 70.736Å c: 89.587Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.215 0.213 0.249
Expression system: Escherichia coli

Quick links

Citations

2 review citations

Plant hemoglobins: important players at the crossroads between oxygen and nitric oxide.
Gupta et al. (2011)
1 more

1 mention without citation

Acetylation of the transcriptional repressor Ume6p allows efficient promoter release and timely induction of the meiotic transient transcription program in yeast.
Law et al. (2014)