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Anti-Cas9 Antibody, NT Antibody, clone 8C1-F10

clone 8C1-F10, from mouse

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CRISPR-associated endonuclease Cas9/Csn1, SpyCas9

biological source


Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies


8C1-F10, monoclonal

species reactivity

Streptococcus pyogenes

species reactivity (predicted by homology)



immunocytochemistry: suitable
western blot: suitable



NCBI accession no.

UniProt accession no.

shipped in


target post-translational modification


General description

CRISPR-associated endonuclease Cas9/Csn1 (UniProt Q99ZW2; also known as SpyCas9) is encoded by the Streptococcus pyogenes serotype M1 gene Cas9 (also known as csn1) gene (Gene ID 901176). Clustered regularly interspaced short palindromic repeats (CRISPRs) are DNA loci containing short repetitions of base sequences complementary to antecedent mobile elements and target invading nucleic acids. Each repetition is followed by short segments of spacer DNA from previous exposures to a virus. Cas9 is an essential endonuclease in Streptococcus pyogenes serotype M1′s CRISPR immune system that confers resistance to foreign genetic elements such as plasmids and phages. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA). In type II CRISPR systems, correct processing of pre-crRNA requires a trans-encoded small RNA (tracrRNA), endogenous ribonuclease 3 (rnc), and Cas9. Cas9/crRNA/tracrRNA endonucleolytically cleaves linear or circular dsDNA target complementary to the spacer. The target strand not complementary to crRNA is first cut endonucleolytically, and then trimmed 3′-5′ exonucleolytically.


Clone 8C1-F10 targets an epitope within Cas9 N-terminal region outside the active site RuvC-I.


His-tagged recombinant Cas9 N-terminal fragment excluding the active site RuvC-I.


Anti-Cas9, NT, clone 8C1-F10 , Cat. No. MABE1669, is a highly specific mouse monoclonal antibody that targets CRISPR-associated endonuclease Cas9/Csn1 and has been tested in Immunocytochemistry and Western Blotting.
Immunocytochemistry Analysis: A 1:50 dilution from a representative lot detected exogenously expressed full-length nuclease-dead Cas9 in transfected NIH/3T3 cells fixed with 4% paraformaldehyde and permeabilized by 0.3% Triton X-100.
Research Category
Epigenetics & Nuclear Function


Evaluated by Western Blotting in NIH3T3 cells.

Western Blotting Analysis: 0.25 µg/mL of this antibody detected exogenously expressed full-length nuclease-dead Cas9 in 10 µg of lysate from transfected NIH/3T3 cells.

Target description

~160 kDa observed. 158.4 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Format: Purified
Protein G purified.
Purified mouse IgG2bκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

12 - Non Combustible Liquids




Not applicable


Not applicable

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