Sperm cells look like small tadpoles. They consist of aheadthat contains the haploid DNA used to fertilize the egg, theflagella tailthat allows the sperm to "swim" to their destination, and themid-piecethat connects the tail to the head. The mid-piece also contains the sperm cell's mitocho...
Externally oriented components on the human sperm cell surface and components in human seminal plasma were labeled by enzymatic iodination with lactoperoxidase and [125I] NaI. SDS-7.5% PAGE of labeled sperm surface resolved one minor and four major components with approximate molecular weights of 92...
Proteomics in the Study of the Sperm Cell Composition, Differentiation and Function A first step in the characterization of cellular functions is the identification of the proteins involved. The spermatozoon is an accessible cell that is p... Rafael,Oliva,Juan,... - 《Systems Biology in Reproduct...
The existence of such a reservoir of nuclear components permits the development of systems for the study of nuclear dynamics in vitro . Xenopus sperm ... C Smythe,JW Newport - 《Methods in Cell Biology》 被引量: 327发表: 1991年 Induced Premature G2/M-Phase Transition in Pachytene Spermatocy...
Occurrence of Components of the Kallikrein-Kinin System in Human Genital Tract Secretions and their Possible Function in Stimulation of Sperm Motility and Migration University of MunichSpringer USPalm S, Schill W, Wallner O, et al (1976) Occurrence of components of the kallikrein-kinin system in ...
Immunoblots of extracts of guinea pig spermatocytes, round spermatids, condensing spermatids, and sperm demonstrated that the antigens change during germ cell differentiation. Thus, 1D4 can be used as a marker of the developing acrosome for studies of the synthesis, structure, and assembly of the...
Thapsigargin is a potent, cell-permeable, IP3-independent intracellular calcium releaser (widely used, from flies to human) that has been shown to rapidly and potently inhibit active and passive transport of proteins into the nucleus (Greber and Gerace, 1995). In contrast, treatment with the ...
While cilia are present in most vertebrate cells, Drosophila melanogaster and Caenorhabditis elegans possess cilia exclusively in sensory neurons and in the case of Drosophila also in sperm. Cilia defects only affect sensory functions (worms and flies) and male fertility (flies) but not the ...
Components from fasting human serum that could stimulate the forward migration of human spermatozoa were isolated by gel filtration on Sephadex G-25. The results suggest that these components may be used to enhance sperm forward migration and, hence, pregnancy rate in artificial insemination with ...
The universal feature of amoeboid cells—independent of their provenance—is the absence of any motor organel... A Grebecki - 《International Review of Cytology》 被引量: 114发表: 1994年 Supramolecular assemblies of the Ascaris suum major sperm protein (MSP) associated with amoeboid cell motility...