CherryPicker systems are powerful sample preparation tools for monitoring and capturing a homogeneous population of cells that either express a specific protein or express a specific promoter activity. These systems utilize the chimeric membrane-anchored CherryPicker fluorescent protein, which can be monitored via fluorescence microscopy and captured on magnetic beads via a specific antibody.
Separate cells that have been transfected at a low level from untransfected cells
Create a homogeneous cell population based on promoter activity or protein expression
Capture and enrich your cells in <2 hr using a bench-top protocol, instead of expensive, time-consuming sorting using flow cytometry
Protocol overview
How do CherryPicker systems work?
The CherryPicker reporter is only expressed together with your protein of interest (Video 1), or downstream of your promoter of interest (Video 2). Therefore, only the cells with your activity of interest will be enriched. Watch our videos below to see how you can use CherryPicker for both applications.
Capture cells expressing a protein of interest
Capture cells with a specific promoter activity
Cell Enrichment data using CherryPicker systems
Enrichment of MEK-expressing cells
HEK-293 cells were transiently transfected with a CherryPicker expression vector encoding a constitutively active mutant of MEK.
Lysates were analyzed for MEK activity by Western blot, using an antibody to phosphorylated MEK substrate, ERK1/2. GAPDH served as a loading control.
Results
Before capture: Small fraction of cells express MEK.
After capture: Cells with MEK activity are enriched!
CherryPicker kit components and buying guide
Each CherryPicker system includes, 2 vectors (including control vector), CherryPicker antibody, buffers, and magnetic beads (magnetic stand is available separately). Use the table below to choose the right kit for your application.
Product
Comments
Systems for Promoter Studies (vectors included)
CherryPicker Cell Capture System
Cat. No. 632572
Contains the CherryPicker Reagent Kit, magnetic beads, a promoterless CherryPicker vector, and a control vector
Promoterless system suitable for use with most cell types. Use the CherryPicker Cell Capture System to capture and enrich cells in which your promoter of interest is active.
Lenti-X CherryPicker Cell Capture System
Cat. No. 632574
Contains the CherryPicker Reagent Kit, magnetic beads, a promoterless lentiviral CherryPicker vector, and a lentiviral control vector
Promoterless system which can be used to transduce virtually any dividing or nondividing cells, including primary cells and stem cells. Use the lentiviral CherryPicker Cell Capture System to capture and enrich cells in which your promoter of interest is active.
Systems for Protein Studies (vectors included)
CherryPicker Cell Capture System (IRES)
Cat. No. 632573
Contains the CherryPicker Reagent Kit, magnetic beads, a bicistronic CherryPicker vector, and a control vector
Bicistronic system suitable for use with most cell types. Use the CherryPicker Cell Capture System (IRES) to capture and enrich cells expressing your protein of interest.
Lenti-X CherryPicker Cell Capture System (IRES)
Cat. No. 632575
Contains the CherryPicker Reagent Kit, magnetic beads, a bicistronic lentiviral CherryPicker vector, and a lentiviral control vector
Bicistronic system which can be used to transduce virtually any dividing or nondividing cells, including primary cells and stem cells. Use the CherryPicker Cell Capture System (IRES) to capture and enrich cells expressing your protein of interest.
CherryPicker Reagents (no vectors included)
CherryPicker Assay Kit
Cat. Nos. 632570 & 632571
Contains the CherryPicker Reagent Kit (wash buffer & CherryPicker-specific antibody) and magnetic beads
Refill reagents for use with any CherryPicker System listed above.
Visit the Documents tab of the CherryPicker product page to download the User Manual and other documentation.
