3KH3: Crystal Structure Of Human CuZN SUPEROXIDE DISMUTASE RECOMBINANTLY Produced In Leishmania Tarantolae; P212121 Crystal Form Containing 12 Chains In The Asymmetric Unit

The rapid and inexpensive production of high-quality eukaryotic proteins in recombinant form still remains a challenge in structural biology. Here, a protein-expression system based on the protozoan Leishmania tarentolae was used to produce human Cu/Zn superoxide dismutase (SOD1) in recombinant form. Sequential integration of the SOD1 expression cassettes was demonstrated to lead to a linear increase in expression levels to up to 30 mg per litre. Chromatographic purification resulted in 90% pure recombinant protein, with a final yield of 6.5 mg per litre of culture. The protein was crystallized and the structures of two new crystal forms were determined. These results demonstrate the suitability of the L. tarentolae expression system for structural research.
PDB ID: 3KH3Download
MMDB ID: 83993
PDB Deposition Date: 2009/10/30
Updated in MMDB: 2010/09
Experimental Method:
x-ray diffraction
Resolution: 3.5  Å
Source Organism:
Similar Structures:
Biological Unit for 3KH3: dimeric; determined by author and by software (PISA)
Molecular Components in 3KH3
Label Count Molecule
Proteins (2 molecules)
Superoxide Dismutase [cu-zn](Gene symbol: SOD1)
Molecule annotation
Chemicals (6 molecules)
* Click molecule labels to explore molecular sequence information.

Citing MMDB