• In molecular biology, trans-activating CRISPR RNA (tracrRNA) is a small trans-encoded RNA. It was first discovered by Emmanuelle Charpentier in her study...
    3 KB (405 words) - 10:53, 22 February 2024
  • Thumbnail for Cas9
    guide RNA composed of two disparate RNAs that associate – the CRISPR RNA (crRNA), and the trans-activating crRNA (tracrRNA). Cas9 targeting has been simplified...
    59 KB (7,257 words) - 12:01, 9 June 2025
  • Thumbnail for CRISPR
    CRISPR (category Non-coding RNA)
    requires only a CRISPR RNA (crRNA) for effective targeting, whereas Cas9 necessitates both a crRNA and a trans-activating crRNA (tracrRNA). In 2016, the nuclease...
    115 KB (11,900 words) - 21:51, 4 June 2025
  • Thumbnail for Cas12a
    precursor crRNAs (pre-crRNAs) into mature crRNAs. This eliminates the requirement for a trans-activating crRNA (tracrRNA), simplifying guide RNA design and...
    22 KB (2,638 words) - 01:38, 9 June 2025
  • artificially engineered combination of two RNA molecules: CRISPR RNA (crRNA) and trans-activating crRNA (tracrRNA). The crRNA component is responsible for binding...
    30 KB (3,644 words) - 14:03, 23 May 2025
  • Vazquez F, Vaucheret H (2004). "Endogenous trans-acting siRNAs regulate the accumulation of Arabidopsis mRNAs". Mol. Cell. 16 (1): 69–79. doi:10.1016/j...
    20 KB (1,022 words) - 10:17, 2 November 2024
  • Thumbnail for CRISPR RNA
    CRISPR systems crRNA and tracrRNA (trans-activating CRISPR RNA) can form a complex known as the guide RNA or gRNA. The crRNA within the gRNA is what matches...
    10 KB (1,149 words) - 21:43, 2 January 2025
  • Thumbnail for CRISPR gene editing
    specific location as designated by the crRNA and tracrRNA guide strands. Researchers can insert Cas9 and template RNA with ease in order to silence or cause...
    177 KB (20,524 words) - 22:37, 29 May 2025
  • Trans-regulatory elements (TRE) are DNA sequences encoding upstream regulators (ie. trans-acting factors), which may modify or regulate the expression...
    12 KB (1,301 words) - 05:51, 22 February 2024
  • Thumbnail for RNA splicing
    complexity, alternative splicing of pre-mRNA transcripts is regulated by a system of trans-acting proteins (activators and repressors) that bind to cis-acting...
    38 KB (4,660 words) - 16:36, 26 February 2025
  • Thumbnail for Non-coding RNA
    mRNA, for example snoRNA HBII-52 regulates the splicing of serotonin receptor 2C. In nematodes, the SmY ncRNA appears to be involved in mRNA trans-splicing...
    67 KB (7,183 words) - 05:31, 23 May 2025
  • that of the well characterized Tn7 transposon, complexes with the CRISPR RNA (crRNA) and associated Cas proteins for transposition. CAST systems have been...
    14 KB (1,712 words) - 17:25, 12 May 2025
  • Thumbnail for Alternative splicing
    regulated by trans-acting proteins (repressors and activators) and corresponding cis-acting regulatory sites (silencers and enhancers) on the pre-mRNA. However...
    62 KB (7,817 words) - 02:05, 4 June 2025
  • interfering RNA (siRNA) and micro RNA (miRNA) to prevent mRNA translation and/or degrade mRNA. Small activating RNA (saRNA) represents a novel class of RNA therapeutics...
    83 KB (9,543 words) - 01:52, 1 June 2025
  • Thumbnail for Ribosomal RNA
    transfer RNA (tRNA) and messenger RNA (mRNA) to process and translate the latter into proteins. Ribosomal RNA is the predominant form of RNA found in...
    60 KB (7,201 words) - 16:09, 23 May 2025
  • Thumbnail for RNA interference
    initiates RNAi by activating the ribonuclease protein Dicer, which binds and cleaves dsRNAs in plants, or short hairpin RNAs (shRNAs) in humans, to produce...
    140 KB (15,415 words) - 03:24, 11 June 2025
  • Internal ribosome entry site (category Cis-regulatory RNA elements)
    An internal ribosome entry site, abbreviated IRES, is an RNA element that allows for translation initiation in a cap-independent manner, as part of the...
    19 KB (1,775 words) - 01:59, 24 May 2025
  • (HIV trans-activator) plays an important role in regulating the reverse transcription of viral genome RNA, ensuring efficient synthesis of viral mRNAs and...
    33 KB (3,929 words) - 19:07, 2 September 2024
  • Thumbnail for Ribosome
    synthesis (messenger RNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide...
    65 KB (7,285 words) - 23:19, 6 June 2025
  • Thumbnail for RNA-directed DNA methylation
    RNA-directed DNA methylation (RdDM) is a biological process in which non-coding RNA molecules direct the addition of DNA methylation to specific DNA sequences...
    139 KB (14,825 words) - 17:07, 9 June 2025
  • Thumbnail for Nucleolus
    the nucleolus by RNA polymerase I. In order for this transcription to occur, several pol I-associated factors and DNA-specific trans-acting factors are...
    19 KB (2,093 words) - 10:32, 25 May 2025
  • Thumbnail for Glioblastoma
    luminescence nanoparticles. PPT refers to polyetherimide, PEG and trans-activator of transcription, and TRAIL is the human tumor necrosis factor-related...
    81 KB (9,104 words) - 20:58, 29 May 2025
  • receptors, metabotropic glutamate receptors (mGluR), may also contribute by activating MAPK pathways and increasing intracellular Ca2+. Antagonism of mGluR5...
    48 KB (6,687 words) - 08:04, 21 September 2023
  • Thumbnail for Eukaryotic transcription
    Eukaryotic transcriptional activators have separate DNA-binding and activating functions. Upon binding to its cis-element, an activator can recruit polymerase...
    49 KB (5,867 words) - 10:43, 1 February 2025
  • Thumbnail for RNA editing
    been shown to function as trans-acting factors for RNA sequence recognition. Specific members of the MORF (Multiple Organellar RNA editing Factor) family...
    61 KB (7,437 words) - 21:57, 3 June 2025
  • Thumbnail for U7 small nuclear RNA
    (1989). "In vivo and in vitro expression of U7 snRNA genes: cis- and trans-acting elements required for RNA polymerase II-directed transcription". EMBO J...
    30 KB (3,630 words) - 05:54, 24 June 2024
  • Thumbnail for CD276
    (2Ig-B7-H3) or two identical pairs (4Ig-B7-H3) due to exon duplication. B7-H3 mRNA is expressed in most normal tissues. In contrast, B7-H3 protein has a very...
    9 KB (1,112 words) - 07:09, 15 October 2024
  • Thumbnail for ATF3
    humans, is encoded by the ATF3 gene. Activating transcription factor 3 is a member of the mammalian activation transcription factor/cAMP responsive element-binding...
    14 KB (1,701 words) - 17:29, 7 November 2023
  • emerged before the evolution of the modern amino acid activation method for protein synthesis. The first RNA polymers probably emerged prior to 4.17 Gya if life...
    25 KB (3,193 words) - 01:02, 28 January 2025
  • Thumbnail for ADAR
    H, Li J, Song Y, et al. (February 2020). "Cis- and trans-regulations of pre-mRNA splicing by RNA editing enzymes influence cancer development". Nature...
    39 KB (4,920 words) - 13:17, 11 June 2025