Mitotic chromosome condensation in the sperm nucleus during post fertilization maturation division in urechis eggs
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منابع مشابه
Mitotic chromosome condensation in the sperm nucleus during post fertilization maturation division in urechis eggs
Changes in the morphology of the sperm nucleus in the egg cytoplasm are mong the immediate events in nucleocytoplasmic interactions during early embryogenesis. Soon after its entrance into the egg cytoplasm, the sperm nucleus of various organisms increases in size with the transformation of condensed chromatin to a diffuse state, resembling the chromatin of an interphase nucleus (2, 13, 15, 16)...
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The NH 2 -terminal domain (N-tail) of histone H3 has been implicated in chromatin compaction and its phosphorylation at Ser10 is tightly correlated with mitotic chromosome condensation. We have developed one mAb that specifically recognizes histone H3 N-tails phosphorylated at Ser10 (H3P Ab) and another that recognizes phosphorylated and unphosphorylated H3 N-tails equally well (H3 Ab). Immunoc...
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in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.
premature chromosome condensation of the sperm and oocyte nucleus in faild fertilized oocytes after in vitro fertilization procedures
introduction: the incidence of sperm and oocyte premature chromosome condensation (pcc) in the failed fertilized oocytes that were taken after routine in viro fertilization (ivf) and intracytoplasmic sperm injection (icsi) programs were investigated. materials and methods: in this study, 364 air-dried preparations of failed fertilized oocytes after either ivf or ocsi procedures were analyzed. t...
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The question of whether proteins necessary for cleavage are already present in unfertilized eggs or whether they are synthesized after fertilization has interested embryologists for a number of years. In 1959, Went (11) published immunological evidence for the presence in unfertilized sea urchin eggs of proteins also associated with partially purified mitotic apparatuses. Recently, Borisy and T...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1976
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.68.1.155