The Isolation of a Major Structural Element of the Sea Urchin Fertilization Membrane
Year: 1970
Type: article
Abstract: Procedures for isolating the contents of the cortical granules from the ova of the sea urchin, Strongylocentrotus purpuratus, are reported. Dithiothreitol is used to remove the vitelline coat; the "demembranated" eggs are then subsequently activated with butyric acid. By means of these procedures, the hyaline protein and crystalline or paracrystalline material have been isolated from the cortical granules. The crystalline material consists of sheets of cylinders or tubules 150-200 A in diameter. This material is believed to be a major structural element of the fertilization membrane which, in the absence of the vitelline coat, does not form.
Source: The Journal of Cell Biology
DOI: 10.1083/jcb.44.3.635
Author: Joseph Bryan
Institution: University of California, Berkeley
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2044456810