Heterochromatin is a tightly packed form of DNA or condensed DNA, which comes in multiple varieties. These varieties lie on a continuum between the two...

Centric heterochromatin, a variety of heterochromatin, is a tightly packed form of DNA. Centric heterochromatin is a constituent in the formation of active...

Constitutive heterochromatin domains are regions of DNA found throughout the chromosomes of eukaryotes. The majority of constitutive heterochromatin is found...

The family of heterochromatin protein 1 (HP1) ("Chromobox Homolog", CBX) consists of highly conserved proteins, which have important functions in the...

always) under active transcription. Euchromatin stands in contrast to heterochromatin, which is tightly packed and less accessible for transcription. 92%...

protein. Heterochromatin, which consists of mostly inactive DNA. It seems to serve structural purposes during the chromosomal stages. Heterochromatin can be...

melanogaster, and mouse spermatocytes. Heterochromatin is a tightly grouped type of DNA. Threads of heterochromatin have been observed in Drosophila melanogaster...

or packaged DNA (heterochromatin). They appear differently upon staining (for example, euchromatin appears white and heterochromatin appears black on...

silencing of a gene in some cells through its abnormal juxtaposition with heterochromatin via rearrangement or transposition. It is also associated with changes...

epigenetic control of heterochromatin formation and is implied as a defense against invading genetic elements. Similar to heterochromatin formation in S. pombe...

methylation of lysine 9 of histone H3) which target the genomic region for heterochromatin formation. The protein complex that binds to siRNAs and interacts with...

with the term omnivore Facultative heterochromatin, tightly packed but non-repetitive DNA in the form of Heterochromatin, but which can lose its condensed...

and heterochromatin. The Ty5 retrotransposon is used as a genetic model to study the architecture and dynamics of the telomeres and heterochromatin. Heterochromatin...

transcribe. EsiRNA and its protein complex may also function to promote heterochromatin creation near retrotransposon sites, silencing the DNA by making it...

functional centromeres, and form the main structural constituent of heterochromatin. The name "satellite DNA" refers to the phenomenon that repetitions...

lysine residue of the histone H3 protein and is often associated with heterochromatin. H3K9me3 indicates trimethylation of lysine 9 on histone H3 protein...

condensed, that is, it tends to appear as euchromatin rather than heterochromatin. GC rich DNA tends to contain more coding DNA and be more transcriptionally...

other mechanisms than heterochromatin to ensure an augmented cohesion at centromeres, because S. cerevisiae lacks heterochromatin next to centromeres,...

processing creates an abnormal nuclear morphology and disorganized heterochromatin. Patients also do not have appropriate DNA repair, and they also have...

mammals is mainly due to the varying amount of heterochromatin in each mammal. Once the amount of heterochromatin is subtracted from total genome content, all...

and heterochromatin are adjacent to the inner nuclear membrane. The protein encoded by this gene binds DNA and is a component of heterochromatin. This...

Banding type Staining method C-banding Constitutive heterochromatin G-banding Giemsa stain Q-banding Quinacrine R-banding Reverse Giemsa staining T-banding...

structure can impact function. For example, when DNA is packed into heterochromatin, therefore exhibiting a type of quaternary structure, gene transcription...

fiber consisting of nucleosome arrays in their most compact form (heterochromatin). Higher-level DNA supercoiling of the 30 nm fiber produces the metaphase...

Heterochromatin vs. euchromatin...

being packaged into a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation...

the presence of the Piwi domain. In addition, Piwi associates with heterochromatin protein 1, an epigenetic modifier, and piRNA-complementary sequences...

their genomes. Modification of histones and associated induction of heterochromatin formation serves to downregulate genes pre-transcriptionally; this...

concepts Karyotype Ploidy Genetic material/Genome Chromatin Euchromatin Heterochromatin Chromosome Chromatid Nucleosome Nuclear organization Types Autosome/Sex...

with constitutively transcriptionally silent chromatin (constitutive heterochromatin) (see bottom Figure). It has been determined that a chromodomain (a...