CRISPR Cas9 Protein

Product Description: CRISPR (clustered regularly interspaced short palindromic repeat) is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain spacers, sequences complementary to antecedent mobile elements, and target invading nucleic acids. 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. Concentration: 9.5~12.5mg/ml. Quality Standards: Concentration: 9.5-12.5 mg/mL. Activity: >85.0%. Purity(Bis-Tris PAGE): > 95.0%. Purity(SEC-HPLC): > 95.0%. Residual RNase: Negative.