› 3ark

X-ray diffraction
1.81Å resolution

Cl- binding hemoglobin component V form Propsilocerus akamusi under 1 M NaCl at pH 4.6

Released:
DOI: 10.2210/pdb3ark/pdb
PDB entry 3ark coloured by chain, front view.
PDB entry 3ark coloured by chain, side view.
PDB entry 3ark coloured by chain, top view.
Source organism: Tokunagayusurika akamusi
Primary publication:
Involvement of the distal Arg residue in Cl⁻ binding of midge larval haemoglobin.
Kuwada T, Hasegawa T, Takagi T, Sakae T, Sato I, Shishikura F
Acta Crystallogr D Biol Crystallogr 67 488-95 (2011)
PMID: 21543852

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-181698 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Globin domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 152 amino acids
Theoretical weight: 17.22 KDa
Source organism: Tokunagayusurika akamusi
UniProt:
  • Canonical: Q7M422 (Residues: 1-152; Coverage: 100%)
Sequence domains: Globin
Structure domains: Globins

Ligands and Environments

2 bound ligands:
Ligand HEM 1 x HEM
Ligand CL 5 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU ULTRAX 18
Spacegroup: P21212
Unit cell:
a: 65.2Å b: 75.25Å c: 33.53Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.19 0.187 0.218

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Citations

1 review citation

Tertiary and quaternary effects in the allosteric regulation of animal hemoglobins.
Ronda et al. (2013)