The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
Cas9n Nickase gRNA Plasmid Targeting: Dual gRNA plasmids create single-strand nicks at precise DNA sequences for efficient genome editing using Cas9n Nickase.
This image illustrates the Cas9n Nickase mechanism used for precise genome editing. Two plasmids (Plasmid 1 and Plasmid 2) are shown, each containing a targeted DNA sequence. The system utilizes single-guide RNAs (sgRNA) to direct Cas9n Nickase to specific genomic locations, represented by the blue and pink DNA strands. The sgRNA scaffold aids in guiding Cas9n to the 20 nucleotide (nt) target sequence on the DNA. Cas9n makes single-strand cuts at NCC and NGG sites, enabling precise gene modifications without creating double-strand breaks.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
CA IX双切酶质粒(m)和CA IX双切酶质粒(m2)编码针对Car9的不同配对gRNA设计。其中一种或两种设计可能均有提供
订购信息
产品名称
产品编号
规格
价格
数量
收藏夹
CA IX双切口酶质粒(m)
sc-432920-NIC
20 µg
CNY3084.00
CA IX双切口酶质粒(m2)
sc-432920-NIC-2
20 µg
CNY3084.00
Car9 编码碳酸酐酶 IX(CA IX),这是一种与膜相关的锌金属酶,可催化 CO₂ 可逆水合反应,从而调控细胞外与细胞内的 pH。在小鼠组织中,CA IX 支持与碳酸氢盐转运相耦联的机制并维持酸碱稳态,将碳酸酐酶活性与离子转运过程联系起来,而这些过程会影响细胞代谢及微环境 pH。Car9 的表达通常与缺氧应答程序及微环境适应相关,因此适用于研究 pH 调控如何塑造细胞的应激反应。CA IX 的活性与定位改变常在组织氧合失衡、炎症以及肿瘤样代谢重塑等模型中被研究。
CA IX 双切酶质粒(m)由一对匹配的质粒组成,专为在 mouse 细胞系中对 Car9 位点进行高特异性编辑而设计。每个质粒分别表达Cas9 D10A切口酶和针对Car9内不同DNA链的独特sgRNA。当这两种切口酶被引导至相邻但位于DNA链相反侧的位点时,会产生错位的单链切口,从而共同形成错位双链断裂,这需要两个引导RNA在靶位点上协同发挥作用。由此产生的DNA断裂通过内源性细胞修复途径(最常见的是非同源末端连接(NHEJ))得到修复,从而导致插入或缺失,进而破坏Car9的功能。通过要求双sgRNA在靶位点结合,双切口方法提高了编辑特异性,并为需要对靶向精度进行额外控制的应用提供了互补的CRISPR策略。