|
Absent protein causes chromosomal breakup.(research on causes of mutations)
From:
Science News
| Date:
October 21, 1995| Author:
| COPYRIGHT 1995 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.Copyright information
|
Researchers studying a mutant strain of fruit flies discovered a protein that appears necessary for proper division of chromosomal material during meiosis. Inserting a genetic blend for the protein into mei-S322 flies corrected mutations.
Perhaps even more than fans of Godzilla films, fruit fly biologists love mutants. For decades, these investigators have studied strange and unusual examples of the fast-breeding insect, both natural mutants and those induced by chemicals or X rays.
In 1968, researchers captured an intriguing mutant near a winery outside Rome. As they studied this ...
Related newspaper, magazine, and trade journal articles from HighBeam Research
(Including press releases, facts, information, and biographies)
|
Sister Chromatids Are Often Incompletely Aligned in Meristematic and Endopolyploid Interphase Nuclei of Arabidopsis thaliana
; ...analyzed whether sister chromatids are continuously...alignment of sister chromatids is defined as...assumed that sister chromatids are aligned from...complex of cohesin proteins apparently mediates...newly replicated sister chromatids until complete...signals ...
|
|
Mutations in the Drosophila Condensin Subunit dCAP-G: Defining the Role of Condensin for Chromosome Condensation in Mitosis and Gene Expression in Interphase
; ...non-SMC condensin proteins associate into complexes...single, unreplicated sister chromatids, suggesting that there...require two major protein complexes, the cohesin...structure holds the two sister chromatids together, perhaps...
|
|
Centromere-Proximal Crossovers Are Associated With Precocious Separation of Sister Chromatids During Meiosis in Saccharomyces cerevisiae
; ...is due to precocious separation of sister chromatids (PSSC) and that PSSC is often associated...from mitosis and meiosis II in that sister chromatids remain associated with each other...held together by chiasmata because sister chromatids are glued to each other in regions...
|
|
Model of Chromosome Motility in Drosophila Embryos: Adaptation of a General Mechanism for Rapid Mitosis
; ...mitotic spindle, a protein machine that uses ensembles...consisting of duplicated sister chromatids and align them at the...the spindle by kts, protein complexes assembled...when eight pairs of sister chromatids are captured and maneuvered...
|
|
The Protease Activity of Yeast Separase (Esp1) Is Required for Anaphase Spindle Elongation Independently of Its Role In Cleavage of Cohesin
; ...Scc1), thereby releasing sister chromatids from cohesion and allowing...data suggest that another protein, possibly a spindle-associated...of cohesin, which binds sister chromatids together(Uhlmannet al.1999...chromosomes (SMC) family proteins,Smc1 and Smc3, and several...breached by ...
|
|
Human oocyte radiosensitivity.(Peer Review)
; ...template that initiates protein synthesis. (See Fig. 1...pairs are pulled apart, yet sister chromatids remain attached (in contrast...plane. 6. Metaphase II--sister chromatids, joined by a centromere...equatorial plane. 7. Anaphase II--sister chromatids are pulled apart to ...
|
|
Best protein sources not bars
; Best protein sources not bars, shakes By SALLY SQUIRES Washington Post Sunday, July...who pay attention to nutrition news and trends inevitably hear about protein: protein bars, shakes and powders, high-protein diets, counting protein grams...
|
|
The Overexpression of a Saccharomyces cerevisiae Centromeric Histone H3 Variant Mutant Protein Leads to a Defect in Kinetochore Biorientation
; ...replicated chromosomes (sister chromatids) become physically linked by a protein complex called...kinetochore, the protein complex that assembles...that draws the sister chromatids away from each...allowing the sister chromatids to be pulled to...Bub, and Mps1 ...
|
|
Arabidopsis Separase AESP Is Essential for Embryo Development and the Release of Cohesin during Meiosis
; ...segregation of sister chromatids to opposite poles...highly conserved proteins referred to as...complex. Four proteins, STRUCTURAL MAINTENANCE...separation of sister chromatids is triggered in...separation of sister chromatids (Rabitsch et al...distribution of cohesin ...
|
|
Male meiotic spindle lengths in normal and mutant Arabidopsis cells
; ...is essential for normal chromosome segregation. Sister chromatids separate at the onset of anaphase, and then move...possibly contributing to further separation of sister chromatids. In mitosis, anaphase A occurs before or concurrently...However, it is not known whether the status of sister ...
|
For more facts and information,
see all results
Find more facts and
information related to the
article "Absent protein causes chromosomal ...".