Segment-long-spacing aggregates and isolation of COOH-terminal peptides from type I procollagen. Academic Article uri icon

abstract

  • Type I procollagen secreted by matrix-free cells from chick embryo tendons was purified by DEAE-cellulose chromatography. Electron microscopy of segment-long-spacing aggregates of the procollagen demonstrated the presence of both NH2-terminal and COOH-terminal extensions not found in collagen. The procollagen was digested with bacterial collagenase and the COOH-terminal fragments were isolated by gel filtration and polyacrylamide gel electrophoresis in sodium dodecyl sulfate. Analysis of tryptic peptides demonstrated that the COOH-terminal extensions on the pro alpha 1 and pro alpha 2 chains had different primary structures.

published proceedings

  • Proc Natl Acad Sci U S A

author list (cited authors)

  • Hoffmann, H. P., Olsen, B. R., Chen, H. T., & Prockop, D. J.

citation count

  • 59

complete list of authors

  • Hoffmann, HP||Olsen, BR||Chen, HT||Prockop, DJ

publication date

  • December 1976