
doi: 10.1038/254109a0
pmid: 1117994
The permeability of the amphibian oocyte nuclear envelope in situ has been determined for three tritiated dextrans. The envelope is a sieve, restricting molecular movement between the cytoplasm and nucleus. The patent radius of its pores is about 45å.
Cell Nucleus, Cytoplasm, Membranes, Macromolecular Substances, Dextrans, Tritium, Permeability, Amphibians, Diffusion, Kinetics, Animals, Female, Particle Size, Ovum
Cell Nucleus, Cytoplasm, Membranes, Macromolecular Substances, Dextrans, Tritium, Permeability, Amphibians, Diffusion, Kinetics, Animals, Female, Particle Size, Ovum
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