Once outside the cell, the registration peptides are cleaved and tropocollagen is formed by procollagen peptidase. These tropocollagen molecules gather to form collagen fibrils, via covalent cross ...

The recently solved crystal structure of the procollagen C propeptide reveals the basis for chain selectivity as well as an unexpected asymmetry to this homotrimeric molecule. In addition ...

In contrast to this proposal, we show here that the mammalian sFRP, sFRP2, does not affect Chordin processing, but instead, can serve as a direct enhancer of procollagen C proteinase activity of ...