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- этимология
Что (кто) такое key board enhancer - определение
WIKIMEDIA DISAMBIGUATION PAGE
Keyboards; Keyboard (disambiguation); Keybord; Key-board; Key board; Touch keyboard
Enhancer RNA
!['''Regulatory elements, including [[Negative elongation factor]] (NELF) and enhancer RNA (eRNA) control transcription of a gene into messenger RNA in [[metazoans]] (animals).''' An active enhancer regulatory region of DNA is enabled to interact with the promoter DNA region of its target gene by the formation of a chromosome loop. This can initiate messenger RNA (mRNA) synthesis by RNA polymerase II (RNAP II) bound to the promoter at the transcription start site of the gene. The loop is stabilized by one architectural protein anchored to the enhancer and one anchored to the promoter and these proteins are joined to form a dimer (red zigzags). Specific regulatory transcription factors bind to DNA sequence motifs on the enhancer. General transcription factors bind to the promoter. When a transcription factor is activated by a signal (here indicated as phosphorylation shown by a small red star on a transcription factor on the enhancer) the enhancer is activated and can now activate its target promoter. The active enhancer is transcribed on each strand of DNA in opposite directions by bound RNAP IIs. Mediator (a complex consisting of about 26 proteins in an interacting structure) communicates regulatory signals from the enhancer DNA-bound transcription factors to the promoter. NELF, in complex with DSIF and RNAP II, can pause transcription. Interaction of eRNA with NELF may release NELF and allow productive elongation of mRNA. NELF can also be released if it is phosphorylated by [[P-TEFb]]](https://commons.wikimedia.org/wiki/Special:FilePath/Regulation of transcription in metazoans (animals).jpg?width=200 "'''Regulatory elements, including [[Negative elongation factor]] (NELF) and enhancer RNA (eRNA) control transcription of a gene into messenger RNA in [[metazoans]] (animals).''' An active enhancer regulatory region of DNA is enabled to interact with the promoter DNA region of its target gene by the formation of a chromosome loop. This can initiate messenger RNA (mRNA) synthesis by RNA polymerase II (RNAP II) bound to the promoter at the transcription start site of the gene. The loop is stabilized by one architectural protein anchored to the enhancer and one anchored to the promoter and these proteins are joined to form a dimer (red zigzags). Specific regulatory transcription factors bind to DNA sequence motifs on the enhancer. General transcription factors bind to the promoter. When a transcription factor is activated by a signal (here indicated as phosphorylation shown by a small red star on a transcription factor on the enhancer) the enhancer is activated and can now activate its target promoter. The active enhancer is transcribed on each strand of DNA in opposite directions by bound RNAP IIs. Mediator (a complex consisting of about 26 proteins in an interacting structure) communicates regulatory signals from the enhancer DNA-bound transcription factors to the promoter. NELF, in complex with DSIF and RNAP II, can pause transcription. Interaction of eRNA with NELF may release NELF and allow productive elongation of mRNA. NELF can also be released if it is phosphorylated by [[P-TEFb]]")
TYPE OF RNA
ERNA; ERNAs; Enhancer RNAs
Enhancer RNAs (eRNAs) represent a class of relatively long non-coding RNA molecules (50-2000 nucleotides) transcribed from the DNA sequence of enhancer regions. They were first detected in 2010 through the use of genome-wide techniques such as RNA-seq and ChIP-seq.
Key (music)
![ii-V<sup>7</sup>-I progression]] in C [[File:Ii-V-I turnaround in C.mid]]](https://commons.wikimedia.org/wiki/Special:FilePath/Ii-V-I turnaround in C.png?width=200 "ii-V<sup>7</sup>-I progression]] in C [[File:Ii-V-I turnaround in C.mid]]")
TONIC NOTE AND CHORD OF A MUSICAL PIECE
Major key; Key (Music); Musical key; Major Key; Key of D; Musical keys; Key coloration; Key relationship; Musical Key; Music key; Minor-key; Minor–key; Major-key; Key of E
In music theory, the key of a piece is the group of pitches, or scale, that forms the basis of a musical composition in classical, Western art, and Western pop music.
Key (cryptography)
PIECE OF INFORMATION IN CRYPTOGRAPHY
Cryptography/Key; Secret key; Encryption key; Cryptographic keys; Cryptographic key; Key (cryptology); Cryptovariable; Cryptovariables
A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data. Based on the used method, the key can be different sizes and varieties, but in all cases, the strength of the encryption relies on the security of the key being maintained.
