The folding and mutual interaction of the domains of yeast 3‐phosphoglycerate kinase

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Abstract
Analysis of the reversible unfolding of yeast phosphoglycerate kinase leads to the conclusion that the two lobes are capable of folding independently, consistent with the presence of intermediates on the folding pathway with a single domain folded. The domains have different free energies of stabilisation. Immunological crossreactivity, circular dichroism and thiol reactivity provide evidence for cyanogen bromide peptide 1-173, which comprises five-sixths of the N-terminal domain, containing sufficient information to refold into a native-like structure which dimerises.