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.
Factor XIII B双切酶质粒(h)和Factor XIII B双切酶质粒(h2)编码针对F13B的不同配对gRNA设计。其中一种或两种设计可能均有提供
转染后,基因敲除效率可以用抗体:Factor XIII B: sc-65957,通过WB, IF或者IHC分析
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Factor XIII B双切口酶质粒(h)
sc-403574-NIC
20 µg
$410.00
Factor XIII B双切口酶质粒(h2)
sc-403574-NIC-2
20 µg
$410.00
F13B 编码凝血因子 XIII 的 B 亚基,这是一种无催化活性的载体蛋白,在血浆中稳定 A 亚基(F13A1),并在凝血级联反应末端阶段调控其被激活的可用性。在凝血酶和钙离子依赖性激活凝血因子 XIII 后,A 亚基转谷氨酰胺酶可将纤维蛋白及其他细胞外基质蛋白进行交联,从而提高血栓的拉伸强度并增强其抗纤溶能力。通过这些过程,凝血因子 XIII B 促进止血,并将凝血与伤口修复及基质重塑通路联系起来。F13B 的遗传或功能性扰动与凝血因子 XIII 缺乏相关表型及凝块稳定性改变有关,因此在出血性疾病与血栓炎症生物学研究中具有重要意义。
Factor XIII B 双切酶质粒(h)由一对匹配的质粒组成,专为在 human 细胞系中对 F13B 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F13B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F13B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。