The image shown above is the spacefilled model of the oxidized human protein disulfide isomerase (HPDI) molecule. The Jmol image is based on pdb file 4EL1. The HPDI molecule is essential is found in the endoplasmic reticulum and is very important in protein folding.

The backbone model emphasizing the 4 different subchains present.
The backbone model showing the redox active residue groups. There is a light colored residue shown for the purpose of seeing how the molecule changes shape after reduction.
The spacefill model showing the redox active residue groups.

The image shown above is the spacefilled model of the reduced HPDI molecule. The Jmol image is based on pdb file 4EKZ.

The backbone model emphasizing the 4 different subchains present.
The backbone model showing the redox active residue groups. There is a light colored residue shown for the purpose of seeing how the molecule changes shape after reduction.
The spacefill model showing the redox active residue groups.