Protein disulfide-isomerase
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Protein disulfide isomerase, or PDI, is an enzyme in the endoplasmic reticulum in eukaryotes and the periplasm of bacteria that catalyzes the formation and breakage of disulfide bonds between cysteine
Structural picture of human protein disulfide isomerase (PDB 1BJX)
PDIA1
Protein folding
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Protein folding is the physical process by which a protein, after synthesis by a ribosome as a linear chain of amino acids, changes from an unstable random coil into a more ordered three-dimensional s
Protein disulfide-isomerase
…This allows proteins to quickly find the correct arrangement of disulfide bonds in their fully folded state, and therefore the enzyme acts to catalyze protein folding. Protein disulfide-isomerase has two catalytic thioredoxin-like domains (active sites), each containing the canonical CGHC motif, and two non catalytic…
All forms of protein structure summarized
Example of a small eukaryotic heat shock protein