CRISPR-Cas9 Antibody (6G12) [FITC]


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Product Details

Reactivity BaSpecies Glossary
Applications ICC/IF

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CRISPR-Cas9 Antibody (6G12) [FITC] Summary

Recombinant C-terminal fragment of S.pyogenes CRISPR/Cas9. [UniProt# Q99ZW2]
Cas9 from Streptococcus pyogene.
IgG1 Kappa
Protein G purified
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  • Immunocytochemistry/Immunofluorescence
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Packaging, Storage & Formulations

Store at 4C in the dark.
0.05% Sodium Azide
Protein G purified


This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

Alternate Names for CRISPR-Cas9 Antibody (6G12) [FITC]

  • Cas9
  • CRISPR/Cas9
  • CRISPR-associated endonuclease Cas9/Csn1
  • CRISPR-associated protein 9 nuclease
  • CRISPR-Cas9
  • CRISPR-Cas9/Csn1
  • csn1
  • SPy_1046
  • SPy1046
  • SpyCas9


Clustered regularly interspaced short palindromic repeats (CRISPRs) are derived from DNA fragments of bacteriophages that infect prokaryotes. When infected, the bacteria capture snips of DNA from the invading virus to create CRISPR arrays. During subsequent infections, the bacteria produce RNA segments from the CRISPR arrays to target the virus' DNA. CRISPR-associated protein 9 (Cas9) is RNA-guided, binds DNA, and is a cleaving enzyme that functions as an integral component of the bacterial CRISPR adaptive immune system that targets the virus' DNA to disable it (1). To check for sites complementary to the 20 base pair spacer region of the guide RNA (gRNA) of the CRISPR, Cas9 unwinds foreign DNA that invades the bacteria. If the DNA substrate is complementary to the gRNA, Cas9 cleaves the invading DNA, rendering the virus disabled. The presence of a 5'-NGG-3' protospacer adjacent motif (PAM) sequence immediately downstream of the target DNA (protospacer) is required for Cas9 cleavage of foreign DNA. As PAM is absent in bacterial CRISPR loci, cleavage of the host genome is avoided and provides a novel sequence for identification of foreign DNA by Cas9.

Using CRISPR-Cas9 technology, double-stranded DNA breaks may be induced within specific targeted genome sequences (target DNA; protospacer) for insertion or removal of DNA sequences for gene editing applications. To target a specific loci, a gRNA that will bind to a specific target sequence of DNA within a genome is created. The gRNA will recognize the DNA sequence, and the Cas9 enzyme will cleave the DNA at the targeted location. Once the targeted DNA is removed by Cas9, the cell's own DNA repair mechanism is used to insert or remove a DNA sequence for genomic editing.

Cas9 detection is used to confirm and evaluate CRISPR Cas9 gRNA transfection efficiency. Western blot analysis of CRISPR-Cas9 gRNA transfected cell lysates with Cas9 antibodies identifies the protein having a theoretical molecular weight of 160kDa. Broad areas of research are benefiting from CRISPR-Cas9 based gene editing tools including studies of basic immunity functions, genetic screening and disease treatment (2). Ethical concerns have led to many countries making it illegal to manipulate human germline cells or perform embryo genome editing.


1. Oakes, B. L., Fellmann, C., Rishi, H., Taylor, K. L., Ren, S. M., Nadler, D. C.,... Savage, D. F. (2019). CRISPR-Cas9 Circular Permutants as Programmable Scaffolds for Genome Modification. Cell, 176(1-2), 254-267.e216. doi:10.1016/j.cell.2018.11.052

2. Chiou, S. H., Winters, I. P., Wang, J., Naranjo, S., Dudgeon, C., Tamburini, F. B.,... Winslow, M. M. (2015). Pancreatic cancer modeling using retrograde viral vector delivery and in vivo CRISPR/Cas9-mediated somatic genome editing. Genes Dev, 29(14), 1576-1585. doi:10.1101/gad.264861.115


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

Video Protocols

ICC/IF Video Protocol

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Secondary Antibodies


Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP2-52398AF350
Alexa Fluor 405 NBP2-52398AF405
Alexa Fluor 488 NBP2-52398AF488
Alexa Fluor 532 NBP2-52398AF532
Alexa Fluor 594 NBP2-52398AF594
Alexa Fluor 647 NBP2-52398AF647
Alexa Fluor 700 NBP2-52398AF700
Alexa Fluor 750 NBP2-52398AF750
Biotin NBP2-52398B
DyLight 350 NBP2-52398UV
DyLight 405 NBP2-52398V
DyLight 488 NBP2-52398G
DyLight 550 NBP2-52398R
DyLight 594 NBP2-52398DL594
DyLight 650 NBP2-52398C
DyLight 680 NBP2-52398FR
DyLight 755 NBP2-52398IR
FITC NBP2-52398F
HRP NBP2-52398H
Janelia Fluor 549 NBP2-52398JF549
Janelia Fluor 646 NBP2-52398JF646

Additional CRISPR-Cas9 Products

Blogs on CRISPR-Cas9.

Recent advances in CRISPR-Cas9
The CRISPR-Cas9 genome-engineering tool is a powerful opportunity for researchers to study individual gene function. CRISPR-Cas9, abbreviated for Clustered Regularly Interspaced Short Palindromic Repeats, is a bacterial defense system that can be r...  Read full blog post.

Top 4 reasons: why use CRISPR-Cas9 antibodies and how?
1. Verification of the success of transfectionWhy- If the CRISPR-Cas9 transfection is not successful, it would not be relevant to relate the observations from transfected cells to the expected outcome of gene editing experiment. How- CRISPR-Cas...  Read full blog post.

CRISPR/Cas9: Keep your friends close, but your viruses closer
"CRISPR", or clustered regularly interspaced short palindromic repeats, is an ancient bacterial mechanism that prevents the invasion of foreign pathogens to a host organism.  Specifically, the CRISPR sequence has been identified as a si...  Read full blog post.

Thomson Reuters Predicts 2016 Nobel Prize Winners
Here at Bio-Techne we always look forward to the annual announcements of winners of the highly coveted Nobel Prize – the greatest award in science. How can you go about predicting which scientists might be in line for a life-changing phone-call fro...  Read full blog post.

Meeting Report: 2nd International Antibody Validation Meeting
Bio-Techne brands Novus Biologicals® and R&D Systems® were proud to support the 2nd International Antibody Validation Meeting held at Bath University, on the 15-16 September, 2016. Almost 100 participants from around the world, including funde...  Read full blog post.

Application Highlight: Recent uses of TERF2 in immunofluorescence (IF)
Telomeres are a region of repeat nucleotide sequences located at the end of chromosomes to protect our DNA from becoming damaged via end-to-end fusion.  TERF2, or telomeric-repeat binding factor 2, is important for telomere integrity and aids in th...  Read full blog post.

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