dna packaging การใช้

• Later stages of the replication cycle involve partially assembled procapsids undergoing DNA packaging.
• "' H3K27ac "'is a modification to DNA packaging protein Histone H3.
• The nucleosomes bind DNA non-specifically, as required by their function in general DNA packaging.
• DNA supercoiling is important for DNA packaging within all cells.
• DNA packaged and condensed in this way is called chromatin.
• By remodeling chromatin structure and changing the density of DNA packaging, gene expression can thus be modulated.
• Cambia is now building a library of plants with the DNA packages inserted near various rice genes.
• DNA packaged in heterochromatin, such as the Xi, is more condensed than DNA packaged in euchromatin, such as the Xa.
• DNA packaged in heterochromatin, such as the Xi, is more condensed than DNA packaged in euchromatin, such as the Xa.
• DNA supercoiling is important for DNA packaging within all cells, and seems to also play a role in gene expression.
• About 250 molecules of scaffolding protein are present in the procapsid during assembly, but during DNA packaging, the scaffolding protein is released.
• These include the major coat protein, a DNA packaging ATPase, a putative DNA polymerase / primase and a N6 adenine specific DNA methyltransferase.
• DNA packaging is greatly increased during nuclear division events such as mitosis or meiosis, where DNA must be compacted and segregated to daughter cells.
• There, his studies of the nucleosome  a basic unit of DNA packaging  showed that its structure was altered when genes were actively transcribed.
• For example, increasing the gene dosage of the gene SIR-2, which regulates DNA packaging in the nematode worm " Caenorhabditis elegans ", can significantly extend lifespan.
• The genome of the virus is composed of multiple segments of double-stranded, super-helical DNA packaged in capsid proteins and a double layer ( IV ) or single layer ( BV ) envelope.
• But Cambia's real mutation thrust is based on including in the DNA packet a DNA package that can become mobile when the plant is crossed with another plant containing an enzyme that frees it.
• These clusters, linked together by intermediate strands of DNA like beads on a string, can be seen under powerful microscopes when a chromosome, the highest level of DNA packaging, is chemically treated so as to uncondense its coils.
• Protamines have been linked to the process of sperm DNA packaging, as they allow for high condensation of the DNA into the sperm nucleus, stabilization of the DNA, and repression of gene expression . [ 12 ] In contrast to spermatozoa from other eukaryotic species, human spermatozoa retain histones in their sperm nuclei, even after significant substitution by protamines.
• The ancestral genome was complex with at least 41 genes, including : ( 1 ) the replication machinery; ( 2 ) up to four RNA polymerase subunits; ( 3 ) at least three transcription factors; ( 4 ) capping and polyadenylation enzymes; ( 5 ) the DNA packaging apparatus; ( 6 ) structural components of an icosahedral capsid and the viral membrane.