Conveniently check transfection efficiencies with this All-in-one Cas9 SmartNuclease

Our All-in-one Cas9 and gRNA plasmids are an excellent way to simplify delivery of your CRISPR/Cas9 system by providing both Cas9 and gRNA from a single vector, and the addition of coordinate expression of RFP for monitoring transfection efficiencies helps make genome engineering projects more user-friendly. SBI’s EF1α-T7-hspCas9-T2A-RFP-H1-gRNA All-in-one Cas9 SmartNuclease Plasmid includes a number of additional features that make it a great All-in-one choice for any genome engineering project involving transfectable cells:

• Conveniently deliver Cas9 and gRNA with a single vector
• Monitor transfection efficiencies with RFP, which is coordinately expressed with the hspCas9 gene via the T2A element
• Drive Cas9 expression with the EF1α promoter, which provides medium expression levels in most cell types, including primary cells and stem cells
• Express gRNA from the H1 promoter for maximum specificity and choice of targets
• Ensure efficient import of Cas9 to the nucleus with N-term and C-term nuclear localization signals (NLSs)
• Boost Cas9 gene expression and stabilize the transcript via the WPRE regulatory element after the C-term NLS
• Easily detect and/or purify the Cas9 protein with the N-term myc-tag
• Produce Cas9 mRNA via in vitro transcription using the T7 promoter

As with all of our Cas9 delivery options, the EF1α-T7-hspCas9-T2A-RFP-H1-gRNA Plasmid is functionally validated and comes backed by our expert technical support team—if you’ve got a genome engineering question just ask by emailing tech@systembio.com.

Why an HR targeting vector is a recommended

Even though gene knock-outs can result from DSBs caused by Cas9 alone, SBI recommends the use of HR targeting vectors (also called HR donor vectors) for more efficient and precise mutation. HR donors can supply elements for positive or negative selection ensuring easier identification of successful mutation events. In addition, HR donors can include up to 6-8 kb of open reading frame for gene knock-ins or tagging, and, when small mutations are included in either 5’ or 3’ homology arms, can make specific, targeted gene edits.

Not sure whether you need a CRISPR/Cas9 plasmid, purified protein, or mRNA?

Use this table to choose the CRISPR/Cas9 product that’s right for you:

• Gene tagging


• Transgenic organism generation


• Model organism engineering

• Stable KO, KI, and genome editing of
  somatic cells


• Transgenic cell line generation


• Cell-based disease models

• Primary cells


• Hematopoietic cells


• Stem cells

• Genome-wide surveys


• gRNA library screens


• Functional screens

• Off-target events are of highest concern

System Biosciences,简称SBI，美国加州湾区新成立的生技公司，致力于独特、创新生物技术之开发，以研发利于基因及蛋白质功能鉴定、研究之崭新方法和工具为宗旨。 现阶段研发重心为RNA干扰（RNAi）研究之相关工具。 System Biosciences (SBI) 致力于开发独特、革新的技术，为客户研究蛋白组学和基因组学功能提供研究工具。SBI 是专业的慢病毒产品公司，提供基于慢病毒的所有相关产品、质粒、试剂盒及相关配套试剂和慢病毒延伸产品如IPS细胞多功能性诱导试剂盒和RNAi筛选文库。

SBI focuses on developing unique, innovative technologies that provide researchers with the tools to investigate and understand genomic and proteomic function. Our mission is to provide tools for the genome-wide analysis of the mechanisms that regulate cellular processes and biological responses.

Headquartered in Palo Alto about 30 miles south of San Francisco, SBI is geographically surrounded by highly successful research biotech companies (e.g., Affymetrix, Life Technologies, and Genentech) and some of the premier life science institutes in the world, including Stanford and the University of California, San Francisco.

As a small private biotechnology company, SBI capitalizes on a rich network of consultants and colleagues and continually collaborates to accelerate its development of innovative and novel applications. Currently, SBI has partnerships with over thirty scientists from several institutes.System Biosciences (SBI) consists of a highly motivated team committed to realizing the potential of its mission to develop and bring to market unique and innovative technology to investigate and understand genomic and proteomic function.

Possessing a diverse range of experience and knowledge, SBI's management and staff bring the skills, talent, and interest needed to support the company's continuing rapid growth.

A strong and proven background in creative research and product development with proficiency in genetic analysis, microarray technology, and cell biology

Extensive business development and management experience

A keen understanding of the needs of life scientists

Expertise in developing, marketing, and supporting consistent, high-quality research products

A clear focus on the need to build and maintain lasting customer relationships through support, service, and close customer interaction