Results 31 to 40 of about 259,540 (309)

An analysis of Y-chromosome microdeletion in infertile Korean men with severe oligozoospermia or azoospermia [PDF]

Investigative and Clinical Urology
Purpose: Infertility affects 10% to 15% of couples, and male factor accounts for 50% of the cases. The relevant male genetic factors, which account for at least 15% of male infertility, include Y-chromosome microdeletions.
Tae Ho Lee, Seung-Hun Song, Dae Keun Kim, Sung Han Shim, Daeun Jeong, Dong Suk Kim   +5 more
doaj   +1 more source

Stretching the Rules: Monocentric Chromosomes with Multiple Centromere Domains [PDF]

, 2012
The centromere is a functional chromosome domain that is essential for faithful chromosome segregation during cell division and that can be reliably identified by the presence of the centromere-specific histone H3 variant CenH3.
Elizabeth Schroeder-Reiter, Schroeder-Reiter, Elizabeth, Chocholova, Eva, Neumann Pavel, Novák Petr, Petr Novák (2448673), Navrátilová Alice, Wanner, Gerhard, Macas Jiří, Gerhard Wanner (40161), Petr Novák, Koblížková Andrea, Jiří Macas (84231), Pavel Neumann, Steinbauerova, Veronika, Navratilova, Alice, Elizabeth Schroeder-Reiter (156901), Andrea Koblížková, Eva Chocholová (156910), Veronika Steinbauerová, Alice Navrátilová (84233), Macas, Jiri, Pavel Neumann (84232), Andrea Koblížková (156904), Neumann, Pavel, Koblizkova, Andrea, Eva Chocholová, Schroeder-Reiter Elizabeth, Wanner Gerhard, Jiří Macas, Veronika Steinbauerová (156907), Novak, Petr, Alice Navrátilová, Gerhard Wanner, Steinbauerová Veronika, Chocholová Eva   +35 more
core   +1 more source

Non-random distribution of high density chromatin detected at opposite ends of T-banded human metaphase chromosomes

Genetics and Molecular Biology, 2007
Previous research using microdensitometric scanning and computer graphic image analysis showed that T-banded segments of human metaphase chromosomes usually exhibit an asymmetrical distribution of high density (HD) chromatin between sister chromatids ...
Federico F. Santiñaque, Máximo E. Drets   +1 more
doaj   +1 more source

The origin of human chromosome 2 analyzed by comparative chromosome mapping with a DNA microlibrary [PDF]

, 1994
Fluorescencein situ hybridization (FISH) of microlibraries established from distinct chromosome subregions can test the evolutionary conservation of chromosome bands as well as chromosomal rearrangements that occurred during primate evolution and will ...
Cremer, Thomas, Senger, G., Wienberg, Johannes, Claussen, U., Horsthemke, B., Arnold, N., Lüdecke, H. J., Jauch, Anna, Lengauer, Christoph   +8 more
core   +1 more source

Independent stratum formation on the avian sex chromosomes reveals inter-chromosomal gene conversion and predominance of purifying selection on the w chromosome [PDF]

, 2014
We used a comparative approach spanning three species and 90 million years to study the evolutionary history of the avian sex chromosomes. Using whole transcriptomes, we assembled the largest cross-species dataset of W-linked coding content to date.
Wright, Alison E, Harrison, Peter W, Mank, JE, Wright, AE, Montgomery, SH, Mank, Judith E, Pointer, Marie A, Harrison, PW, Pointer, MA, Montgomery, Stephen H   +9 more
core   +1 more source

Embryonic loss of human females with partial trisomy 19 identifies region critical for the single active X. [PDF]

PLoS ONE, 2017
To compensate for the sex difference in the number of X chromosomes, human females, like human males have only one active X. The other X chromosomes in cells of both sexes are silenced in utero by XIST, the Inactive X Specific Transcript gene, that is ...
Barbara R Migeon, Michael A Beer, Hans T Bjornsson   +2 more
doaj   +1 more source

Application of the FISH Technique to Visualize Sex Chromosomes in Domestic Cat Spermatozoa

Animals, 2021
Fluorescence in situ hybridization is a molecular cytogenetics technique that enables the visualization of chromosomes in cells via fluorescently labeled molecular probes specific to selected chromosomes.
Barbara Kij-Mitka, Halina Cernohorska, Svatava Kubickova, Sylwia Prochowska, Wojciech Niżański, Joanna Kochan, Monika Bugno-Poniewierska   +6 more
doaj   +1 more source

Karyotyping human chromosomes by optical and X-ray ptychography methods

, 2014
Sorting and identifying chromosomes, a process known as karyotyping, is widely used to detect changes in chromosome shapes and gene positions. In a karyotype the chromosomes are identified by their size and therefore this process can be performed by ...
Xiong, G, Harder, Ross, Robinson, Ian K., Robinson, IK, Shemilt, Laura, Yusuf, M, Shemilt, LA, Verbanis, E, Estandarte, AK, Zhang, F, Zhang, Fucai, Schwenke, J, Xiong, Gang, Yusuf, Mohammed, Parmar, Neha, Schwenke, Joerg, Parmar, N, Verbanis, Ephanielle, Estandarte, Ana K.   +18 more
core   +1 more source

Comparative chromosome band mapping in primates byin situ suppression hybridization of band specific DNA microlibraries [PDF]

, 1991
A DNA-library established from microdissected bands 8q23 to 8q24.1 of normal human chromosomes 8 (Lüdecke et al., 1989) was used as a probe for chromosomal in situ suppression (CISS-) hybridization to metaphase chromosomes of man and primates including ...
Cremer, Thomas, Wienberg, Johannes, Horsthemke, B., Lüdecke, H. J., Lengauer, Christoph   +4 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source