Proper mitosis, in turn, depends on changes in chromosome organization, such as chromosome condensation
and sister chromatid cohesion.
This is caused by early onset of chromosome condensation in the early G2 of the cell cycle (so it is called premature chromosome condensation or PCC syndrome) and delayed decondensation in early G1-phase of the cell cycle.
Premature chromosome condensation syndrome is a disorder which is characterized by microcephaly, short stature, and misregulated chromosome condensation.
Mutations in microcephalin cause aberrant regulation of chromosome condensation.
Phosphorylated H2A and H4 are found in mouse spermatogenesis, and correlates with both mitotic/meiotic chromosome condensation and displacement of histone proteins from the nucleosome structure.
Identification of a novel phosphorylation site on histone H3 coupled with mitotic chromosome condensation.
Makde, a postdoctoral member of the research team led by Tan, grew molecular crystals of the protein RCC1 (regulator of chromosome condensation
, a protein critical for proper separation of chromosomes during cell division) bound to the nucleosome, and used X-ray crystallography to determine the atomic structure of the complex.
For karyomorphological studies, metaphases were rigorously selected based on the level of chromosome condensation
Folate sensitive fragile site expression seems to appear as a result of heritable defects of DNA methylation along a region normally binding a folding protein involved in chromosome condensation
The karyotype formula reported here are quite different from that of Wang and Guo (2007), probably reflecting variations in chromosome condensation
and/or errors in pairing and measurement.
G-banding and chromosome condensation
in the ant, Tapinoma nigerrimum.
However, the differences appear to be minor, and may stem simply from slight differences in chromosome condensation
and/or fixation, or in interpretation of images by individual observers.