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In biology, the chromosome scaffold is the backbone that supports the structure of the chromosomes. It is composed of a group of non-histone proteins that are essential in the structure and maintenance of eukaryotic chromosomes throughout the cell cycle. These scaffold proteins are responsible for the condensation of chromatin during mitosis. [1]
the dynamic properties of S/MAR-scaffold contacts as derived by haloFISH investigations [5] the fact that during transcription DNA is reeled through RNA-polymerase which itself is a fixed component of the nuclear matrix [6] the fact that certain domain-intrinsic S/MARs require the support of an adjacent transcription factor to become active. [4]
The structure of the condensed chromatin is thought to be loops of 30 nm fibre to a central scaffold of proteins. It is, however, not well-characterised. Chromosome scaffolds play an important role to hold the chromatin into compact chromosomes. Loops of 30 nm structure further condense with scaffold, into higher order structures. [21]
The transcription termination site is located after the ORF, beyond the translation stop codon. If transcription were to cease before the stop codon, an incomplete protein would be made during translation. [3] In eukaryotic genes with multiple exons, introns are removed and exons are then joined together after transcription to yield the final ...
Chromosome scaffold has important role to hold the chromatin into compact chromosome. Chromosome scaffold is made of proteins including condensin, topoisomerase IIα and kinesin family member 4 (KIF4) [27] Chromosome scaffold constituent proteins are also called scaffold protein. In enzymatic reaction Large multifunctional enzymes that performs ...
Commonly, many people think the structure of a chromosome is in an "X" shape. But this is only present when the cell divides. Researchers have now been able to model the structure of chromosomes when they are active. This is extremely important because the way that DNA folds up in chromosome structures is linked to the way DNA is used.
The non-histone proteins, are a large group of heterogeneous proteins that play a role in organization and compaction of the chromosome into higher order structures. They play vital roles in regulating processes like nucleosome remodeling, DNA replication, RNA synthesis and processing, nuclear transport, steroid hormone action and interphase ...
In molecular biology and genetics, DNA annotation or genome annotation is the process of describing the structure and function of the components of a genome, [2] by analyzing and interpreting them in order to extract their biological significance and understand the biological processes in which they participate. [3]