Octamer Collection

Nucleosome molecule, computer model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid)

DNA nucleosome molecule
DNA nucleosome, molecular model. This is the fundamental repeating unit used to package DNA (deoxyribonucleic acid) inside cell nuclei

Nucleosome molecule F006 / 9323
Nucleosome, molecular model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid)

Nucleosome molecule F006 / 9314
Nucleosome, molecular model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid)

Nucleosome molecule F006 / 9235
Nucleosome, molecular model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid)

Ebola matrix protein molecule
Ebola matrix protein. Molecular model of the Ebola virus matrix protein VP40 (green) bound to RNA (ribonucleic acid, red)

Nucleosome core particle bound to DNA C014 / 0872
Nucleosome core particle bound to DNA. Molecular model showing a nucleosome core particle (green and purple) bound to a strand of DNA (deoxyribonucleic acid, blue and red)

RNA interference viral suppressor molecule. Computer model showing the molecular structure of the p21 protein from a beet yellow virus

Histone structures, diagram. Histone cores are cylindrical structures around which the genetic molecule DNA (deoxyribonucleic acid) is wound with other proteins to form chromatin

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Octamer refers to a crucial component in the intricate world of molecular biology. Specifically, it is associated with nucleosomes, which are fundamental units of DNA packaging within our cells. These nucleosome molecules, such as F006/9323, F006/9314, and F006/9235, play a vital role in organizing and condensing DNA strands. At its core, an octamer consists of eight proteins known as histones that form a complex structure. This octameric unit binds tightly to the DNA molecule, creating what is called a nucleosome core particle bound to DNA. This binding helps regulate gene expression by controlling access to genetic information encoded in the DNA sequence. Interestingly enough, this concept extends beyond just regular cellular processes. Even viruses like Ebola possess matrix protein molecules that interact with host cell components like nucleosomes for their survival and replication purposes. Furthermore, another variant of the nucleosome core particle bound to DNA exists: C014/0872. It showcases how diverse these structures can be while maintaining their essential function. Intriguingly contrasting this topic is RNA interference viral suppressor - an element involved in inhibiting our body's natural defense mechanism against viral infections.