We have studied the presence of four sperm glycosidases, α-mannosidase, α-L- fucosidase and two β-hexosaminidase isoforms, in 11 species of the genus Drosophila spanning approximately an evolutionary 60 MY period, and in Scaptodrosophila lebanonensis, belonging to the ancestor genus Scaptodrosophila. These enzymes had been previously identified in Drosophila melanogaster as putative receptors for glycoconjugates of the egg surface. Alpha-mannosidase and β-hexosaminidases are intrinsic proteins of the sperm plasma membrane in species closely related to D. melanogaster as well as in the divergent species D. willistoni, D. hydei, D. virilis, and S. lebanonensis. Alpha-L-fucosidase is restricted to the species of the genus Drosophila. Alpha-man...
The goal of this study was to identify the genes coding for \u3b2-N-acetylhexosaminidases in the Med...
Abstract Background The evolutionary diversification of gene families through gene creation (and los...
7 p.-27 fig.Orthoptera spermatids and spermatozoa from two species of Tettigoniidae and from one of ...
Previous studies from our laboratory have demonstrated the presence of two integral proteins with gl...
We investigated the presence of enzymes on the surface of Drosophila melanogaster spermatozoa that m...
Previous studies have identified beta-N-acetylglucosaminidase (GlcNAc'ase) and alpha-mannosidase act...
Drosophila is emerging as a model organism to investigate egg fertilization in insects and the possi...
We investigated the presence of enzymes on the surface of Drosophila melanogaster spermatozoa that m...
Fertilization is a complex and multiphasic process, consisting of several steps, where egg-coating e...
The plasma membrane of the spermatozoa of Drosophila melanogaster contains two integral proteins wit...
The plasma membrane of Drosophila (Sophophora) melanogaster spermatozoa contains an alpha-l-fucosida...
The important roles played by glycoconjugates in the recognition of gametes and in fertilization are...
Drosophila obscura group species produce two distinct sizes of nucleated sperm that differ only in h...
Three forms of a-glucosidase, I, II, and III, have been purified from the whole body extract of adul...
Fruit-flies of the genus Drosophila are characterized by overwhelming variation in fertilization tra...
The goal of this study was to identify the genes coding for \u3b2-N-acetylhexosaminidases in the Med...
Abstract Background The evolutionary diversification of gene families through gene creation (and los...
7 p.-27 fig.Orthoptera spermatids and spermatozoa from two species of Tettigoniidae and from one of ...
Previous studies from our laboratory have demonstrated the presence of two integral proteins with gl...
We investigated the presence of enzymes on the surface of Drosophila melanogaster spermatozoa that m...
Previous studies have identified beta-N-acetylglucosaminidase (GlcNAc'ase) and alpha-mannosidase act...
Drosophila is emerging as a model organism to investigate egg fertilization in insects and the possi...
We investigated the presence of enzymes on the surface of Drosophila melanogaster spermatozoa that m...
Fertilization is a complex and multiphasic process, consisting of several steps, where egg-coating e...
The plasma membrane of the spermatozoa of Drosophila melanogaster contains two integral proteins wit...
The plasma membrane of Drosophila (Sophophora) melanogaster spermatozoa contains an alpha-l-fucosida...
The important roles played by glycoconjugates in the recognition of gametes and in fertilization are...
Drosophila obscura group species produce two distinct sizes of nucleated sperm that differ only in h...
Three forms of a-glucosidase, I, II, and III, have been purified from the whole body extract of adul...
Fruit-flies of the genus Drosophila are characterized by overwhelming variation in fertilization tra...
The goal of this study was to identify the genes coding for \u3b2-N-acetylhexosaminidases in the Med...
Abstract Background The evolutionary diversification of gene families through gene creation (and los...
7 p.-27 fig.Orthoptera spermatids and spermatozoa from two species of Tettigoniidae and from one of ...