2007 Fiscal Year Final Research Report Summary
Molecular anatomical research of nuclear membrane in mitotic phase : the ultra structure of the surface and genes regulate it.
| Project/Area Number |
18590188
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
General anatomy (including Histology/Embryology)
|
|---|
| Research Institution | Kyushu University |
|---|
Principal Investigator |
HIROSE Eiji Kyushu University, Department of Developmental Molecular Anatomy, Graduate School of Medical Sciences, Assistant Professor (40380620)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
INAI Tetsuichiro KYUSHU UNIVERSITY, Department of Developmental Molecular Anatomy, Graduate School of Medical Sciences, Associate Professor (00264044)
SHIBATA Yosaburo KYUSHU UNIVERSITY, Department of Developmental Molecular Anatomy, Graduate School of Medical Sciences, Professor (90037482)
NISHITANI Hideo University of Hyogo, Laboratory of Biological Signaling, Graduate School of Life Science, Professor (40253455)
|
|---|
| Project Period (FY) |
2006 – 2007
|
| Keywords | Anatomy / Cell Histology / Ultrastructure of the cell / Genetics / G protein / Xenonus laevis |
|---|
| Research Abstract |
For the first step of investigating the functions of Rag gene family molecules in nuclear division process, we isolated the homologues of Rag gene from African clawed frog, Xenopus laevis (XRag1 and XRag2). A multiple alignment and phylogenetic tree indicated that all eukaryotes carry two closely related genes. Together with binding of these two gene products in human and yeast previously reported, XRag1 and XRag2 could form the minimal functional complex in vivo. However, a level of XRag1 and XRag2 transcripts were not linked revealed by RT-PCR. XRag2 expression showed rapid decrease after Mid Blastula Transition (MBT) in contrast to the almost constant level of XRag2. Then, we confirmed the spatial expression patterns of two genes by in situ hybridization. In early stages before MBT, both XRag1 and XRag2 are expressed in animal hemisphere but XRag2 is decreased after stage 8 and no longer detectable in stage 12. Simultaneous expression of XRag1 and XRag2 was detected again after stage 25, tail bud stage in neuronal tissues (eye and ear primordium). In summary, (1) XRag1 and XRag2 shared incompatible genetic functions. (2) During stage 10-25, only XRag1 is expressed. This suggests XRag1 homodimer (or homooligomer) is the functional unit in these stages. (3) Thus, expression ratio of XRag1 and XRag2 may regulate the switching of the cell division mode at MBT. (4) In later stages, these genes are specifically expressed in neuronal tissues, suggesting new XRag1 and XRag2 roles in the development of peripheral nervous system.
|
-
[Journal Article] Differential expression of the tight junction proteins,claudin-1,claudin-4,occludin,ZO-1,and PAR3,in the ameloblasts of rat upper incisors2008
Author(s)
Inai T, Sengoku A, Hirose E, Iida H, Shibata Y.
-
Journal Title
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
-
-
[Journal Article] Differential expression of the tightjunction proteins, claudin-1 , claudin-4,occludin. ZO-1. and PAR3. in the ameloblasts of rat imtier incisors2008
Author(s)
Inai, T., Sengoku, A., Hirose, E., Iida, H., Shibata, Y
-
Journal Title
Anat Rec 291(5)
Pages: 577-585
Description
「研究成果報告書概要(欧文)」より
-
[Journal Article] Tektin5, a new Tektin family member, is a component of the middle piece of flagella in rat spermatozoa2008
Author(s)
Murayama, E., Yamamoto, E., Kaneko, T., Shibata, Y., Inai, T., Iida, H
-
Journal Title
Mol Reprod Dev 75(4)
Pages: 650-658
Description
「研究成果報告書概要(欧文)」より
-
-
-
-
-
-
-
-
-
[Journal Article] Licensing regulators Geminin and Cdtl identify progenitor cells of the mouse CNS in a specific phase of the cell cycle2007
Author(s)
Spella, M., Britz, O., Kotantaki, P., Lygerou, Z., Nishitani, H., Ramsay, RG., Flordellis, C., Guillemot, F., Mantamadiotis, T., Taraviras, S
-
Journal Title
Neuroscience 147(2)
Pages: 373-87
Description
「研究成果報告書概要(欧文)」より
-
[Journal Article] Cdtl associates dynamically with chromatin throughout Gl and recruits Geminin onto chromatin2007
Author(s)
Xouri, G., Squire, A., Dimaki, M., Geverts, B., Verveer, PJ., Taraviras, S., Nishitani, H., Houtsmuller, AB., Bastiaens, BI., Lygerou, Z
-
Journal Title
EMBO J 26(5)
Pages: 1303-14
Description
「研究成果報告書概要(欧文)」より
-
-
[Journal Article] Tektin 4 is located on outer dense fibers, not associated with axonemal tubulins of flagella in rodent spermatozoa2006
Author(s)
lida, H., Honda, Y., Matsuyama, T., Shibata, Y., Inai, T
-
Journal Title
Mol Reprod. Dev 73(7)
Pages: 929-36
Description
「研究成果報告書概要(欧文)」より
-
[Journal Article] Germ cell-less like 2 protein is a new component of outer dense fibers in rat sperm flagella
Author(s)
Murayama, E., Katoh, M., Kanebayashi, A., Kaneko, T., Shibata, Y., Inai, T., Iida, H
-
Journal Title
Reproduction 134(6)
Pages: 749-756
Description
「研究成果報告書概要(欧文)」より
-
-
-
-
-
-
-
-
-
-
[Presentation] Novel factor which bind to transcription factor, NRSF which regulates neuron specific genes2007
Author(s)
Y., Naruse, T., Aoki, E., Hirose, Y., Watanabe, M., Tanaka, T., Hoshi, N., Mori, T., Matsuura
Organizer
The 83th Annual Meeting of Japanese Association of Anatomists(Kinki branch)
Place of Presentation
Meiji University of Oriental Medicine
Year and Date
2007-10-17
Description
「研究成果報告書概要(欧文)」より
-
[Presentation] Immunohistochemical and immunocytochemical localization of GATE-16 which binds to microtube regulatory factor, RB32006
Author(s)
E., Hirose, H., Morii, Y., Naruse, T., Inai, Y., Shibata, N., Mori
Organizer
The 62th Annual Meeting of Japanese Association of Anatomists(Kyushu branch)
Place of Presentation
Kyushu University
Year and Date
2006-10-21
Description
「研究成果報告書概要(欧文)」より
