CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

Novus Biologicals | Catalog # NBP2-80679

Novus Biologicals
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Key Product Details

Species Reactivity

Mouse, Bacteria, Bovine, Chicken, Fungi

Applications

Knockout Validated, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry Whole-Mount, Western Blot, Immunocytochemistry/ Immunofluorescence, Simple Western, Immunoprecipitation

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 kappa Clone # 7A9-3A3

Format

Azide and BSA Free
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Product Specifications

Immunogen

This CRISPR-Cas9 antibody (7A9-3A3) - N-Terminus was raised against Recombinant Cas9 within the N-terminal region of Streptococcus pyogene. [Uniprot: Q99ZW2].

Reactivity Notes

Mouse reactivity reported in multiple pieces of scientific literature.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1 kappa

Theoretical MW

158.4 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - Analysis of lysate from Cas9 transfected HEK-293T cells using Cas9 antibody clone 7A9-3A3 at 2ug/ml concentration. The signal was developed using HRP-labelled anti-mouse secondary antibody and ECL based detection. Observed molecular weight is ~158 kDa. Image from the standard format of this antibody.
Immunocytochemistry/ Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunocytochemistry/ Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunocytochemistry/Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - Hela cells were transiently transfected with an N-terminally Flag-tagged S. pyogenes Cas9 expression vector. The cells were stained with the Cas9 antibody followed by anti mouse-AF488 coupled secondary antibody. Nuclei were counter-stained with Hoechst 33342. Image from the standard format of this antibody.
Immunohistochemistry-Frozen: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunohistochemistry-Frozen: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunohistochemistry-Frozen: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - Analysis of a formalin fixed 20um thick frozen section of mouse brain with GBM xenograft tumor areas (GBM cells over expressing SpyCas9 through lentivirus infection). CRISPR-Cas9 antibody (clone 7A9-3A3) was used at 1:50 dilution. The signal was detected
Western Blot: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - 20 ug whole cell lysates from control MEF (MEF-WT) and MEF-Cas9 stable cell line. CRISPR-Cas9 antibody (clone 7A9-3A3) was used at 1:1000 dilution. Observed molecular weight is ~158 kDa. Image submitted via verified customer review. Image from the standard format of this antibody.
Immunocytochemistry/ Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunocytochemistry/ Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunocytochemistry/Immunofluorescence: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - Analysis of Crispr-Cas9 transfected HEK293 cells using CRISPR-Cas9 antibody (clone 7A9-3A3). Red staining represents CRISPR-Cas9 positivity while DAPI stained nuclei are visible in blue color. Image submitted via verified customer review. Image from the standard format of this antibody.
Simple Western: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Simple Western: CRISPR-Cas9 Antibody (7A9-3A3)N-TerminusAzide and BSA Free [NBP2-80679]

Simple Western: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - Image shows a specific band for Cas9 (observed molecular weight ~158 kDa) in HeLa Cas9 lysate but not in Hela WT lysate. This experiment was performed under reducing conditions using the 12-230 kDa separation system. Image from the standard format of this antibody.
Immunoprecipitation: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunoprecipitation: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679]

Immunoprecipitation: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] - HEK293T expressing N-terminally Flag-tagged S.pyogenes Cas9 were lysed 72h post transfection by resuspending the cells in Hunt buffer and subjecting to 3 freeze-thaw cycles in liquid nitrogen/ice. Proteins were immunoprecipitated from 100ug of whole cell lysate for 1h at 4C with Cas9 supernatant followed by incubation for 1h at 4C with a 1:1 mixture of protein A/G sepharose beads, or for 2h at 4C with Cas9 ab crosslinked to a 1:1 mixture of protein A/G sepharose beads. Beads were washed 2x with Hunt buffer and 1x with TBS. Bound proteins were eluted by boiling in Laemmli, separated by SDS-PAGE and transferred to nitrocellulose. Membrane was blocked, incubated with Cas9 ab, incubated with HRP anti-mouse secondary. *IgG heavy chain Image from the standard format of this antibody.
CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

Western Blot: CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free [NBP2-80679] -

Cas9-dependent breaks are invisible to DNA end resection enzymes. See also Supplementary Fig. 1.a Sequence of a DNA segment within the ~2.4 kbp circular plasmid-based DNA substrate used for the Cas experiments. The sequence of the crRNAs is shown in bold for both Cas9 and Cas12a. The PAM sequence is underlined, and the arrowheads indicate the putative cleavage sites. The sequence in green corresponds to the radioactive probe that anneals to the substrates if resection has taken place. The red asterisk indicates the position of the radioactive label. b Representative agarose gel electrophoresis of the substrates treated with the indicated Cas variants. The separation was performed on a 1% TAE gel in the presence of GelRed. The position of the various products is indicated. DA: Cas9 D10A; HA: Cas9 H840A; d: catalytically inactive Cas9; Fn: Francisella novicida Cas12a; Mb: Moraxella bovoculi Cas12a. A representative of two independent experiments is shown. c Top, a schematic overview of the assay. Bottom, representative annealing DNA end resection assay showing resection by the MRE11 complex (25 nM Mre11-Rad50 with 200 nM phosphorylated Sae2, MR-pSae2) of plasmid-based DNA substrate treated with the indicated Cas variants. The probe anneals 92 bp away from the cleavage site for Cas9 and 106 bp for Cas12a. A representative of two independent experiments is shown. d Representative Exo1-MR-pSae2-mediated resection of the plasmid-based DNA substrate treated with EcoRV, Cas9, or Cas12a, as indicated. DNA was stained with GelRed (Biotium). The DNA products, constituted mostly by mono- and dinucleotides, are not stained effectively by the dye. A representative of two independent experiments is shown. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://www.nature.com/articles/s41467-024-50080-y), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Applications for CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:500

Immunohistochemistry-Frozen

reported in scientific literature (PMID 28153089)

Western Blot

1:1000
Application Notes
IF and IHC use of CRISPR-Cas9 antibody (clone 7A9-3A3) on 4% formaldehyde fixed and 20um thick frozen-/cryo-sections reported in scientific literature (PMID: 28153089)

Formulation, Preparation, and Storage

Purification

Protein G purified

Formulation

PBS

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: CRISPR-Cas9

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.

References

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

Long Name

CRISPR-associated Protein 9

Alternate Names

Cas9, CRISPR-associated endonuclease Cas9/Csn1, CRISPR-Cas9/Csn1, CRISPR/Cas9, csn1, SPy_1046, SPy1046, SpyCas9

Additional CRISPR-Cas9 Products

Product Documents for CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

Certificate of Analysis

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Product Specific Notices for CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

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.

Citations for CRISPR-Cas9 Antibody (7A9-3A3) - N-Terminus - Azide and BSA Free

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Protocols

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