Results 171 to 180 of about 17,404 (221)
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Surface properties of the zona pellucida
Journal of Experimental Zoology, 1980AbstractStructural and sperm binding properties of the hamster zona pellucida (ZP) were investigated using the scanning electron microscope (SEM). The internal and external surfaces of the ZP were found to be morphologically dissimilar. The external surface displayed a fenestrated lattice‐like appearance, whereas the internal surface showed a regular ...
D M, Phillips, R M, Shalgi
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ZONA PELLUCIDA DOMAIN PROTEINS
Annual Review of Biochemistry, 2005▪ Abstract Many eukaryotic proteins share a sequence designated as the zona pellucida (ZP) domain. This structural element, present in extracellular proteins from a wide variety of organisms, from nematodes to mammals, consists of ∼260 amino acids with eight conserved cysteine (Cys) residues and is located close to the C terminus of the polypeptide ...
Luca, Jovine +3 more
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2018
All fish eggs are surrounded by an envelope, called the zona pellucida (ZP), that plays various roles during oogenesis, egg deposition, fertilization, and embryogenesis. The fish egg ZP consists of only a few proteins that are homologs of mammalian ZP proteins ZP1, ZP3, and ZP4. Unlike the situation in mammals, in fishes there are often multiple copies
Eveline S, Litscher, Paul M, Wassarman
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All fish eggs are surrounded by an envelope, called the zona pellucida (ZP), that plays various roles during oogenesis, egg deposition, fertilization, and embryogenesis. The fish egg ZP consists of only a few proteins that are homologs of mammalian ZP proteins ZP1, ZP3, and ZP4. Unlike the situation in mammals, in fishes there are often multiple copies
Eveline S, Litscher, Paul M, Wassarman
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Effects of slitting the zona pellucida and its subsequent sealing on freeze-thaw survival of Day 7 bovine embryos [PDF]
Theriogenology, 1987 The effects of slitting the zona pellucida and its subsequent sealing by either embedding in agar or surrounding with an additional zona pellucida on the development of frozen/thawed Day 7 bovine embryos were investigated in vitro and in vivo. A total of
Heiner Niemann, K R Bondioli
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Viscoelastic Characterization of Mouse Zona Pellucida
IEEE Transactions on Biomedical Engineering, 2013The viscoelastic properties of the zona pellucida (ZP), which is the extracellular coat surrounding an oocyte/embryo, are evaluated in this study. Previous studies demonstrate that ZP mechanical properties change during oocyte maturation, fertilization, and early embryo development, but linear pure elastic models currently being used do not satisfy the
Kim, JS Kim, Jung-Sik, Kim, J Kim, Jung
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Developmental Biology, 1980
Abstract The zona pellucida is an acellular coat which surrounds the plasma membrane of fully grown mammalian oocytes and which performs a variety of important functions during oogenesis, fertilization, and preimplantation development. In this investigation the proteins of the mouse oocyte's zona pellucida have been identified and characterized by ...
J D, Bleil, P M, Wassarman
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Abstract The zona pellucida is an acellular coat which surrounds the plasma membrane of fully grown mammalian oocytes and which performs a variety of important functions during oogenesis, fertilization, and preimplantation development. In this investigation the proteins of the mouse oocyte's zona pellucida have been identified and characterized by ...
J D, Bleil, P M, Wassarman
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The Mouse Egg's Zona Pellucida
2018All mammalian eggs are surrounded by a highly specialized extracellular matrix (ECM), called the zona pellucida (ZP), that functions before, during, and after fertilization. Unlike somatic cell ECM the mouse ZP is composed of three different proteins, ZP1-3, that are synthesized and secreted by growing oocytes and assembled into long interconnected ...
Paul M, Wassarman, Eveline S, Litscher
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The multifunctional zona pellucida and mammalian fertilization
Journal of Reproductive Immunology, 2009An early step in mammalian fertilization is species-restricted binding of sperm to the oocyte's zona pellucida (ZP), a thick extracellular coat. Sperm bind to the ZP of unfertilized oocytes, but not to the ZP of fertilized oocytes. Shortly after binding to the unfertilized oocyte ZP, sperm undergo the acrosome reaction (AR).
Paul M, Wassarman, Eveline S, Litscher
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The fate of the zona pellucida in mice
Development, 1970ABSTRACT In mice and rats, the egg is surrounded by a mucoprotein coat, the zona pellucida, which is lost shortly before implantation. The mechanism of loss has long been a matter of controversy. In rats, loss of the zona has variously been reported to be by lysis (Defrise, 1933; Dickson, 1963) or by an active hatching mechanism ...
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Antibody reactivity with porcine zona pellucida
Journal of Reproductive Immunology, 1985A comparative study on anti-zona antibody activities in the sera from clinically defined categories of patients registered at the WHO Reference Bank for Reproductive Immunology was performed at five different laboratories with different detection methods.
T, Mori +8 more
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