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  2. CRISPR activation - Wikipedia

    en.wikipedia.org/wiki/CRISPR_activation

    The activation domain can recruit general transcription factors or RNA polymerase to the gene sequence. Activation domains can also function by facilitating transcription by stalled RNA polymerases, and in eukaryotes can act to move nucleosomes on the DNA or modify histones to increase gene expression. [4]

  3. CRISPR gene editing - Wikipedia

    en.wikipedia.org/wiki/CRISPR_gene_editing

    Conversely, CRISPR-mediated activation (CRISPRa) promotes gene transcription. [242] Cas9 is an effective way of targeting and silencing specific genes at the DNA level. [243] In bacteria, the presence of Cas9 alone is enough to block transcription. For mammalian applications, a section of protein is added.

  4. Activator (genetics) - Wikipedia

    en.wikipedia.org/wiki/Activator_(genetics)

    A transcriptional activator is a protein (transcription factor) that increases transcription of a gene or set of genes. [1] Activators are considered to have positive control over gene expression, as they function to promote gene transcription and, in some cases, are required for the transcription of genes to occur.

  5. Cas12a - Wikipedia

    en.wikipedia.org/wiki/Cas12a

    The CRISPR-Cas12a system consist of a Cas12a enzyme and a guide RNA that finds and positions the complex at the correct spot on the double helix to cleave target DNA. CRISPR-Cas12a systems activity has three stages: [3] Adaptation: Cas1 and Cas2 proteins facilitate the adaptation of small fragments of DNA into the CRISPR array.

  6. CRISPR/Cas tools - Wikipedia

    en.wikipedia.org/wiki/CRISPR/Cas_Tools

    CRISPR-Cas design tools are computer software platforms and bioinformatics tools used to facilitate the design of guide RNAs (gRNAs) for use with the CRISPR/Cas gene editing system. CRISPR-Cas [ edit ]

  7. CRISPR - Wikipedia

    en.wikipedia.org/wiki/CRISPR

    CRISPR gene editing is a revolutionary technology that allows for precise, targeted modifications to the DNA of living organisms. Developed from a natural defense mechanism found in bacteria, CRISPR-Cas9 is the most commonly used system, that allows "cutting" of DNA at specific locations and either delete, modify, or insert genetic material.

  8. CRISPR-associated transposons - Wikipedia

    en.wikipedia.org/wiki/CRISPR-associated_transposons

    CRISPR-associated transposons have been harnessed for in vitro and in vivo gene editing at different targets, in different hosts, and with different payloads. All CAST components of the Tn6677 system from Vibrio cholerae have been combined into a single plasmid and confirmed to deliver up to 10kb transposons at near 100% efficiency. [16]

  9. Off-target genome editing - Wikipedia

    en.wikipedia.org/wiki/Off-target_genome_editing

    Designer nuclease systems such as CRISPR-cas9 are becoming increasingly popular research tools as a result of their simplicity, scalability and affordability. [10] [11] With this being said, off-target genetic modifications are frequent and can alter the function of otherwise intact genes. Multiple studies using early CRISPR-cas9 agents found ...