• Thumbnail for CRISPR
    that in E. coli cut the CRISPR RNA precursor within the repeats into mature spacer-containing RNA molecules called CRISPR RNA (crRNA), which remained bound...
    115 KB (11,900 words) - 21:51, 4 June 2025
  • Thumbnail for Cas9
    Cas9 (redirect from CRISPR/Cas9)
    of the guide RNA (gRNA). If the DNA substrate is complementary to the guide RNA, Cas9 cleaves the invading DNA. In this sense, the CRISPR-Cas9 mechanism...
    59 KB (7,257 words) - 12:01, 9 June 2025
  • Thumbnail for CRISPR RNA
    CRISPR RNA or crRNA is a RNA transcript from the CRISPR locus. CRISPR-Cas (clustered, regularly interspaced short palindromic repeats - CRISPR associated...
    10 KB (1,149 words) - 21:43, 2 January 2025
  • gRNAs are a part of the CRISPR-Cas system that serves as an adaptive immune defense that protects the organism from viruses. Here the short gRNAs serve...
    30 KB (3,644 words) - 14:03, 23 May 2025
  • Thumbnail for Cas12a
    Cas12a (redirect from CRISPR/Cas12a)
    (CRISPR-associated protein 12a, previously known as Cpf1) is an RNA-guided endonuclease-exonuclease that forms an essential component of the CRISPR systems...
    22 KB (2,638 words) - 01:38, 9 June 2025
  • Thumbnail for CRISPR interference
    genes on the mRNA level. Many bacteria and most archaea have an adaptive immune system which incorporates CRISPR RNA (crRNA) and CRISPR-associated (cas)...
    24 KB (2,898 words) - 12:08, 22 March 2024
  • Thumbnail for CRISPR gene editing
    version of the bacterial CRISPR-Cas9 antiviral defense system. By delivering the Cas9 nuclease complexed with a synthetic guide RNA (gRNA) into a cell, the cell's...
    177 KB (20,566 words) - 06:05, 28 June 2025
  • diseases. Like for CRISPR interference, the CRISPR effector is guided to the target by a complementary guide RNA. However, CRISPR activation systems are...
    22 KB (2,739 words) - 14:29, 21 June 2025
  • 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
  • palindromic repeats) system for genome editing. The CRISPR/Cas9 system uses a short guide RNA (sgRNA) sequence to direct a Streptococcus pyogenes Cas9 nuclease...
    16 KB (2,133 words) - 12:04, 22 March 2024
  • Samuel H. Sternberg, PhD is an American protein–RNA biochemist and an expert on CRISPR–Cas gene editing technology. He is an Associate Professor in the...
    12 KB (1,107 words) - 00:10, 20 June 2025
  • CRISPR-associated transposons or CASTs are mobile genetic elements (MGEs) that have evolved to make use of minimal CRISPR systems for RNA-guided transposition...
    14 KB (1,712 words) - 17:25, 12 May 2025
  • "protospacers"). Upon subsequent invasion, a CRISPR-associated nuclease such as Cas9 attaches to a tracrRNA–crRNA complex, which guides Cas9 to the invading...
    12 KB (1,422 words) - 22:27, 13 June 2025
  • early CRISPR-cas9 agents found that greater than 50% of RNA-guided endonuclease-induced mutations were not occurring on-target. The Cas9 guide RNA (gRNA) recognizes...
    55 KB (7,122 words) - 04:03, 28 April 2025
  • advancement in CRISPR technology, enables precise RNA targeting and manipulation without altering DNA. Unlike DNA-editing Cas9, Cas13a uses a single RNA-guided...
    9 KB (1,251 words) - 20:29, 30 June 2025
  • Thumbnail for RNA
    transfer RNA (tRNA), microRNA (miRNA), small interfering RNA (siRNA), small nucleolar RNA (snoRNAs), Piwi-interacting RNA (piRNA), tRNA-derived small RNA (tsRNA)...
    66 KB (7,668 words) - 11:49, 23 June 2025
  • CRISPR-Cas design tools are computer software platforms and bioinformatics tools used to facilitate the design of guide RNAs (gRNAs) for use with the...
    16 KB (1,283 words) - 21:43, 2 January 2025
  • Thumbnail for Anti-CRISPR
    CRISPR-Cas system is blocked before it can develop a response. The procedure starts with the CRISPR locus being transcribed into crRNAs (CRISPR RNA)...
    32 KB (3,691 words) - 09:43, 24 June 2025
  • Thumbnail for Cas3
    enzymes. CRISPR-mediated adaptive immunity requires three stages: sequence acquisition, CRISPR RNA biogenesis, and target interference. CRISPR RNA-guided...
    10 KB (1,163 words) - 02:42, 6 May 2025
  • Thumbnail for Genome-wide CRISPR-Cas9 knockout screens
    alterations. The approach utilises the CRISPR-Cas9 gene editing system, coupled with libraries of single guide RNAs (sgRNAs), which are designed to target every...
    55 KB (6,172 words) - 00:49, 29 May 2025
  • PMID 17387036. Brouns SJ, Jore MM, Lundgren M, et al. (August 2008). "Small CRISPR RNAs guide antiviral defense in prokaryotes". Science. 321 (5891): 960–4....
    20 KB (1,022 words) - 10:17, 2 November 2024
  • Thumbnail for Emmanuelle Charpentier
    Emmanuelle Charpentier (category Non-coding RNA)
    synthetic "guide RNA" molecules. Synthetic guide RNA is a chimera of crRNA and tracrRNA; therefore, this discovery demonstrated that the CRISPR-Cas9 technology...
    44 KB (3,368 words) - 16:23, 24 May 2025
  • CRISPR Therapeutics AG is a Swiss–American biotechnology company headquartered in Zug, Switzerland. The company does business as CRISPR Therapeutics,...
    11 KB (932 words) - 18:12, 10 June 2025
  • Thumbnail for Jennifer Doudna
    February 19, 1964) is an American biochemist who has pioneered work in CRISPR gene editing, and made other fundamental contributions in biochemistry and...
    70 KB (5,988 words) - 04:17, 10 June 2025
  • Thumbnail for Non-coding RNA
    RNAs such as microRNAs, siRNAs, piRNAs, snoRNAs, snRNAs, exRNAs, scaRNAs and the long ncRNAs such as Xist and HOTAIR. The number of non-coding RNAs within...
    67 KB (7,183 words) - 05:31, 23 May 2025
  • Thumbnail for Messenger RNA
    such as CRISPR may also benefit from using mRNA to induce cells to make the desired Cas protein. Since the 2010s, RNA vaccines and other RNA therapeutics...
    52 KB (6,275 words) - 09:30, 30 June 2025
  • Perturb-seq (category RNA sequencing)
    performing single cell RNA sequencing (scRNA-seq) on pooled genetic perturbation screens. Perturb-seq combines multiplexed CRISPR mediated gene inactivations...
    22 KB (2,704 words) - 08:52, 3 June 2025
  • Thumbnail for Virus
    involve RNA interference from repetitive DNA sequences within archaean genomes that are related to the genes of the viruses. Most archaea have CRISPR–Cas...
    155 KB (18,324 words) - 19:17, 13 June 2025
  • Thumbnail for Functional genomics
    observed phenotypes. CRISPR-Cas9 has been used to delete genes in a multiplexed manner in cell-lines. Quantifying the amount of guide-RNAs for each gene before...
    32 KB (4,013 words) - 04:45, 28 May 2024
  • Thumbnail for RNA interference
    include plasmids, CRISPR and mRNA. The first approved use of lipid nanoparticles as a drug delivery mechanism began in 2018 with the siRNA drug patisiran...
    140 KB (15,415 words) - 03:24, 11 June 2025