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J Cell Biol. 1993 Nov;123(4):771-83.

Isolation of the yeast nuclear pore complex.

Author information

  • 1Laboratory of Cell Biology, Howard Hughes Medical Institute, Rockefeller University, New York, New York 10021.

Abstract

Nuclear pore complexes (NPCs) have been isolated from the yeast Saccharomyces. Negative stain electron microscopy of the isolated NPCs and subsequent image reconstruction revealed the octagonal symmetry and many of the ultrastructural features characteristic of vertebrate NPCs. The overall dimensions of the yeast NPC, both in its isolated form as well as in situ, are smaller than its vertebrate counterpart. However, the diameter of the central structures are similar. The isolated yeast NPC has a sedimentation coefficient of approximately 310 S and an M(r) of approximately 66 MD. It retains all but one of the eight known NPC proteins. In addition it contains as many as 80 uncharacterized proteins that are candidate NPC proteins.

PMID:
8227139
[PubMed - indexed for MEDLINE]
PMCID:
PMC2200146
Free PMC Article
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