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Role of sperm surface proteins in gamete binding
Jonáková, Věra; Tichá, M.
2003 - English
Mammalian fertilization includes highly regulated biochemical interactions between complementary molecules located on the surface of both gametes. Sperm surface proteins play various roles in the fertilization process.
Keywords:
boar seminal plasma proteins, gamete binding, fertilization
Available at various institutes of the ASCR
Role of sperm surface proteins in gamete binding
Mammalian fertilization includes highly regulated biochemical interactions between complementary molecules located on the surface of both gametes. Sperm surface proteins play various roles in the ...
Study of sperm proteins in modelspecies of chondrostean and teleostean fish
Koubek, Pavel; Elzeinová, Fatima; Linhart, O.; Pěknicová, Jana
2003 - English
Specific in the study of fish reproduction is outer fertilization. spermatozoa are usually expelled into host medium of the outer encironment. The cells have to cope with an extremely different encironment and their protection against the outer environment is much weaker than that of oocytes. The way of fertilization also differs from mammalian fertilization.
Keywords:
cyprinus; carpio; acipenser
Available at various institutes of the ASCR
Study of sperm proteins in modelspecies of chondrostean and teleostean fish
Specific in the study of fish reproduction is outer fertilization. spermatozoa are usually expelled into host medium of the outer encironment. The cells have to cope with an extremely different ...
Dynamic and role of cytosekeletal proteins in mammalian sperm cells
Paleček, J.; Dvořáková, K.; Pěknicová, Jana; Kubátová, Alena; Moore, H. D. M.
2003 - English
The cytoskeleton of sperm head consists of resistant structural proteins of the nucleus and of perinuclear theca, which are largely rosponsible for the shaping of the nucleus. three mahjor cyteskeletal proteins, actin, tzubnulin and spectrin, are present in the head of mammalian spermatohzoa. Maoreober, the mictotubular cytoskeleton also contains other dynamic proteins, which have a morphological function within the cell and which are responsible for cell signalling processes.
Keywords:
cytoskeleton; spermatozoa
Available at various institutes of the ASCR
Dynamic and role of cytosekeletal proteins in mammalian sperm cells
The cytoskeleton of sperm head consists of resistant structural proteins of the nucleus and of perinuclear theca, which are largely rosponsible for the shaping of the nucleus. three mahjor ...
noTitle
Teplá, O.; Pěknicová, Jana; Mrázek, M.; Kočí, K.; Chládek, David; Míka, M.; Badalová, J.; Pecka, T.; Fulka, F.
2003 - English
Iscare IVF a.s. had a long record of successful azoospermic treatment since 1997, when the first pregnancies by MESA a TESE were published in the Czech republic. A series of diferent implanted laboratory techniques supported good results from last year. The medical problem is solved during the other field of application-histlogical findings and immunofluorescent methods.
Keywords:
MESA; azoospermia; TESE
Available at various institutes of the ASCR
noTitle
Iscare IVF a.s. had a long record of successful azoospermic treatment since 1997, when the first pregnancies by MESA a TESE were published in the Czech republic. A series of diferent implanted ...
Regulation and localization of sperm akaps during capacitation, activation, induced acrosomal reaction and binding to the oocyte
Kyselová, Vendula; Pěknicová, Jana
2003 - English
Recent evidence suggests that the cAMP-dependent protein kinase A (PKA) is localized to specific subcellulatr compatrments trought association with A Kinase Anchoring Proteins (AKAPs). The AKAPs now represent a functionally related family of regulatory proteins containing a conserved PKA binding domain and a unique targeting sequence that direct the PKA-AKAP complex to subcellular structures.
Keywords:
akap; acrosome
Available at various institutes of the ASCR
Regulation and localization of sperm akaps during capacitation, activation, induced acrosomal reaction and binding to the oocyte
Recent evidence suggests that the cAMP-dependent protein kinase A (PKA) is localized to specific subcellulatr compatrments trought association with A Kinase Anchoring Proteins (AKAPs). The AKAPs now ...
Serine proteinase inhibitors isolated from boar seminal plasma
Jelínková, Petra; Maňásková, Pavla; Tichá, M.; Jonáková, Věra
2002 - English
Serine proteinase inhibitors were found in boar seminal plasma. The work was concentrated on isolation and characterization of proteinase inhibitors and study of the existence of inhibitors in complexes with other proteins in seminal plasma.
Keywords:
proteinase inhibitors; seminal plasma; proteins; bílkoviny
Available at various institutes of the ASCR
Serine proteinase inhibitors isolated from boar seminal plasma
Serine proteinase inhibitors were found in boar seminal plasma. The work was concentrated on isolation and characterization of proteinase inhibitors and study of the existence of inhibitors in ...
Cryocrystallography of biological Macromolecules
Řezáčová, Pavlína
2002 - English
Crystals of biological macromolecules at near to room temperature are sensitive to X-rays and frequently suffer from radiation damage, especially when X-ray experiments are carried out on highly intense synchrotron beamlines. Performing such experiments at cryogenic temperatures greatly reduce, or eliminate radiation damage and thus produce higher quality diffraction data.
Keywords:
cryocrystallography; radiation demage; protein crystals
Available at various institutes of the ASCR
Cryocrystallography of biological Macromolecules
Crystals of biological macromolecules at near to room temperature are sensitive to X-rays and frequently suffer from radiation damage, especially when X-ray experiments are carried out on highly ...
Phytoremediation and biodegradation of PCB in soil
Ryšlavá, E.; Krejčík, Zdeněk; Macek, Tomáš; Macková, M.
2002 - English
This is a part of the research work focused on study of possible mutual relationships of microorganisms and plants in PCBs metabolism. Polluted soil was obtained from a site which has been contaminated by PCBs for a long time. This soil was used for isolation of bacteria whixh potentially participate in biolodegradation of PCBs. The same contaminated soil was used for experiments under real conditions. Within six months three plant species were cultivated-tobaco (Nicotiana tabacum), black nighshade (Solanum nigrum) and alfalfa (Medicago sativa) - and decrease of PCBs was measured.
Keywords:
Fytoremediation; biodegradation; PCB
Available at various institutes of the ASCR
Phytoremediation and biodegradation of PCB in soil
This is a part of the research work focused on study of possible mutual relationships of microorganisms and plants in PCBs metabolism. Polluted soil was obtained from a site which has been ...
Bioinformatics: Tools for analysis of biological sequences
Pačes, Jan
2001 - English
The field of Genomics is aimed at complex analysis of genomes based on our knowledge of the nucleotide sequences in DNA. Bioinformatics is a tool for analysis of the long strings of nucleotide or aminoacid sequences. Here we describe basic methods of bioinformatics.
Keywords:
bioinformatics; stringology
Available at various institutes of the ASCR
Bioinformatics: Tools for analysis of biological sequences
The field of Genomics is aimed at complex analysis of genomes based on our knowledge of the nucleotide sequences in DNA. Bioinformatics is a tool for analysis of the long strings of nucleotide or ...
DNA vaccination
Plachý, Jiří
2001 - English
We have evalueted the protective activity of v-src-derived DNA vaccines against growth of v-src-induced tumors in congenic chicken lines.
Keywords:
v-src-specific immunity; DNA vaccination; chicken MHC (B)
Available at various institutes of the ASCR
DNA vaccination
We have evalueted the protective activity of v-src-derived DNA vaccines against growth of v-src-induced tumors in congenic chicken lines.
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