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  2. CRISPR - Wikipedia

    en.wikipedia.org/wiki/CRISPR

    The system has 2 CRISPR loci and 9 Cas genes. It seems to be homologous to the I-F system found in Yersinia pestis. Moreover, like the bacterial CRISPR-Cas system, ICP1 CRISPR-Cas can acquire new sequences, which allows phage and host to co-evolve. [177] [178] Certain archaeal viruses were shown to carry mini-CRISPR arrays containing one or two ...

  3. CRISPR/Cas tools - Wikipedia

    en.wikipedia.org/wiki/CRISPR/Cas_Tools

    The CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR associated nucleases) system was originally discovered to be an acquired immune response mechanism used by archaea and bacteria. It has since been adopted for use as a tool in the genetic engineering of higher organisms.

  4. CRISPR gene editing - Wikipedia

    en.wikipedia.org/wiki/CRISPR_gene_editing

    CRISPR-Cas9. CRISPR gene editing (CRISPR, pronounced / ˈ k r ɪ s p ə r / (crisper), refers to a clustered regularly interspaced short palindromic repeats") is a genetic engineering technique in molecular biology by which the genomes of living organisms may be modified. It is based on a simplified version of the bacterial CRISPR-Cas9 ...

  5. CRISPR-associated transposons - Wikipedia

    en.wikipedia.org/wiki/CRISPR-associated_transposons

    CRISPR-associated transposons or CASTs are mobile genetic elements that have evolved to make use of minimal CRISPR systems for RNA-guided transposition of their DNA. [1] Unlike traditional CRISPR systems that contain interference mechanisms to degrade targeted DNA, CASTs lack proteins and/or protein domains responsible for DNA cleavage. [ 2 ]

  6. CRISPR activation - Wikipedia

    en.wikipedia.org/wiki/CRISPR_activation

    CRISPR activation (CRISPRa) is a gene regulation technique that utilizes an engineered form of the CRISPR-Cas9 system to enhance the expression of specific genes without altering the underlying DNA sequence.

  7. CRISPR RNA - Wikipedia

    en.wikipedia.org/wiki/CRISPR_RNA

    CRISPR RNA or crRNA is a RNA transcript from the CRISPR locus. [1] CRISPR-Cas (clustered, regularly interspaced short palindromic repeats - CRISPR associated systems) is an adaptive immune system found in bacteria and archaea to protect against mobile genetic elements , like viruses , plasmids , and transposons . [ 2 ]

  8. CRISPR Therapeutics Stock History: The Rise of the World's ...

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  9. 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.

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