CRISPR and Cas proteins collectively constitute the adaptive immune system in prokaryotes and have been harnessed as highly precise molecular tools for targeted editing of DNA and RNA. The Cas9 protein (CRISPR-associated protein 9), in particular, has emerged as the cornerstone of genome editing due to its capacity to generate site-specific double-strand breaks in genomic DNA, enabling programmable and efficient genome modification. In various model organisms, these double-strand breaks are predominantly repaired through the non-homologous end joining (NHEJ) pathway, often resulting in insertions or deletions that lead to gene inactivation; alternatively, when a repair template is provided, the homologous recombination (HR) pathway facilitates precise integration of exogenous genetic sequences. In human cells, the CRISPR/Cas9 system has been rigorously validated for applications in gene knockout and gene replacement, demonstrating robust efficacy in correcting disease-causing mutations and offering a transformative approach for the treatment of monogenic disorders. As gene editing technologies continue to advance in precision, efficiency, and safety, and as their applications expand across diverse fields, Cas9-based systems exhibit substantial potential in gene therapy, agricultural biotechnology, and the development of novel biopharmaceuticals, positioning them as pivotal instruments in advancing both fundamental research and translational life sciences.

CRISPR/Cas9 DNA Editing

To support Cas9-related research，Cell Biolabs, distributed by XMJ, offers two types of Cas9 detection kits.：Our Cas9 ELISA Kits provide a convenient way to quantify Cas proteins in a 96-well plate format. Our Cas9 Activity Assay Kits are enzymatic kits that measure Cas9 activity levels in cell lysates. Both formats are available to test Cas9 from either Staphylococcus aureus or Streptococcus pyogenes.

Cas9 Activity Assay Kits

Cell Biolabs’ Cas9 Activity Assay Kit is an enzymatic assay developed to test the activity of Cas9 protein in cell lysate samples.

Cas9 ELISA Kits

Cell Biolabs’ Cas9 ELISA Kit is an enzyme immunoassay developed for the detection and quantitation of Cas9 in cell or tissue lysate samples.

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