Nuclear Lamins During Gametogenesis, Fertilization and Early Development
Lamins have been described as major components of the nuclear envelope (Gerace et al., 1978; Gerace and Blobel, 1982). These proteins of approximately 70 to 60 kD seem to be present in nuclei of all species investigated albeit in different sizes and numbers. Somatic cells like rat liver have three lamins named A, B, and C according to size (Gerace et al., 1978); Xenopus red blood cells have two lamins (Krohne et al., 1981), where lamin I has properties of the mammalian lamin B and the amphibian lamin II is similar to the mammalian lamin C in location, size and pI.
KeywordsSertoli Cell Nuclear Envelope Germinal Vesicle Round Spermatid Morula Stage
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