• USA Home
  • CRISPR13V - CRISPR-Lenti Human HPRT1 Positive Control Transduction Particles

CRISPR13V Sigma-Aldrich

CRISPR-Lenti Human HPRT1 Positive Control Transduction Particles

  •  NACRES NA.51



Related Categories CRISPR Controls (DNA and Virus), CRISPR-Cas9, Functional Genomics and RNAi, Molecular Biology
Quality Level   200
packaging   vial of 200 μL
concentration   1x106  VP/ml (via p24 assay)
application(s)   CRISPR: suitable
shipped in   dry ice
storage temp.   −70°C


General description

The Sigma CRISPR-LENTI HUMAN HPRT1 POSITIVE CONTROL TRANSDUCTION PARTICLES are a critical positive control to monitor transduction efficiency for lentiCRISPRs. This control is produced from the sequence-verified CRISPR lentiviral plasmid targeting human HPRT1. The protein encoded by this gene is a transferase which plays a central role in the generation of purine nucleotides. Cells with intact HPRT1 will die upon exposure to 6-TG (A4882), an antimetabolite used in the treatment of leukemias. Conversely, cells with HPRT1 knocked out will increase over time with 6-TG selection. This targets a validated HPRT1 CRISPR site, which serves as an experimental control for Sigma lenti CRISPRs. The Sigma lenti CRISPR positive control is a one-component system consisting of an EF1-alpha- driven Cas9, a U6-driven guide RNA plasmid targeting the human HPRT1 gene, with both Puromycin and GFP co-expressed with Cas9.

Lentiviral-based particles permit efficient infection and integration of the construct into differentiated and non-dividing cells, such as neurons and dendritic cells, overcoming low transfection and integration difficulties when using these cell lines. Self-inactivating replication incompetent viral particles are produced in packaging cells (HEK293T) by co-transfection with compatible packaging plasmids.


Functional Genomics/Screening/Target Validation
• Positive control, HPRT1, CRISPR lentivirus format, for creating gene knockouts/genetic modifications in cell lines.

To see more application data, protocols, vector maps visit sigma.com/crispr.

Features and Benefits

Serves as a positive experimental control for the CRISPR editing workflow using lentiCRISPRs (virus format). Allows for validation of your system with the lentiCRISPR/Cas9 system. A positive result in a mis-match detection assay will indicate validation of your system.

Physical form

200 μl of 106 TU/ml (via p24 titering assay) lentiviral particles are provided as frozen stock.

Legal Information

CRISPR Use License Agreement

Lentiviral and WPRE License Agreements

Safety & Documentation

Safety Information

UN 3245 9
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


CRISPR/Cas Nuclease RNA-guided Genome Editing

What is CRISPR/Cas9? How does CRISPR/Cas work? How does CRISPR Cas9 work? What is CRISPR/Cas9? Our role in developing CRISPR/Cas9
Keywords: Acetylations, Catalysis, Cell culture, Degradations, Gene expression, Genetic, PAGE, Polymorphisms, Transcription, Transduction, Transfection

Related Content


In recent years CRISPR has revolutionized gene editing capabilities, leading to sophisticated ways to create success with any experiment. As the first company to offer custom biomolecules globally fo...
Keywords: Genetic, Genomics, Transduction, Transfection

Predictive Models for Neuroscience using CRISPR [VIDEO]

Caroline Beckett, the global CRISPR product manager, discusses reagent solutions for creating predictive models for neuroscience research. She notes that many neuroscientists want to be able to creat...
Keywords: Cell culture, Diseases, Neurodegenerative Diseases, Neuroscience

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?