Type-III procollagen assembly in semi-intact cells: chain association, nucleation and triple-helix folding do not require formation of inter-chain disulphide bonds but triple-helix nucleation does require hydroxylation.

Abstract excerpt

Procollagen assembly is initiated within the endoplasmic reticulum by three alpha-chains associating via their C-propeptides (C-terminal propeptides). To study the requirements for the association of procollagen monomers at synthesis we have reconstituted the initial stages in the folding, assembly and modification of procollagen using semi-permeabilized cells. By translating a type-III procollagen "mini-gene'...

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