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BacMam tools

Aside from fluorescent biosensors, Montana Molecular provides targeted fluorescent proteins, SARs-CoV-2 pseudoviruses, and expression vectors for GPCRs, ion channels, and many other drug targets.  These tools are packaged in a BacMam viral vector, providing consistent, robust, and titratable expression across standard cell lines, primary cultures, and iPSCs. They can also be easily co-expressed with our suite of fluorescent biosensors, for example to express a GPCR alongside a signaling assay.

GPCRs

A growing suite of over 40 unmodified, native human GPCRs packaged in BacMam. Easily combine with our Gs, Gi, Gq, or Arrestin Recruitment biosensors. Species orthologues, mutations, tags, and other modifications are available on request.

Figure showing Gs-mediated cAMP signaling from GLP-1R activation

Cell Painting Tools

A suite of fluorescent proteins targeted to subcellular domains, including mitochondria, lysosome, golgi, and cytoskeleton. These tools enable visualization of subcellular structures and cell morphology in the context of drug discovery and disease research. Investigate drug effects, monitor metabolic activities, and identify disease-associated phenotypes with no need to fix, stain, or lyse your cells.

 

Figure showing dose-dependent cAMP signaling to DAMGO at MOR

Neurodegenerative Disease-associated proteins

Express wild-type and mutant versions of proteins implicated in neurodegenerative diseases including ALS, Rhetinitis Pigmentosa, Parkinson’s, and Alzheimer’s. These are human, untagged proteins including TDP-43, alpha synuclein, SOD1, Rhodopsin, and FUS.

Genetic cell stress assay

Pseudo SARS-CoV-2 Viruses

These pseudoviruses are BSL-1 baculoviruses pseudotyped with Spike (S) proteins. This means that biologists and drug discovery teams can work on COVID-19 projects outside of BSL-3 facilities with standard safety procedures. Baculovirus production in Sf9 cells is cost effective with low batch-to-batch variability. Once inside the cell, the pseudovirus does not replicate, but delivers a genetically-encoded, fluorescent reporter that expresses bright green fluorescence in the host cell nucleus.

 

Figure showing pseudovirus antibody blocking experiment

GPCR Kinases

Human, unmodified GRKs packaged in BacMam. Easily co-express with GPCRs and G-protein signaling biosensors.

Figure showing ER stress sensor response to mutant proteins associated with neurodegeneration

Receptor activity-modifying Proteins (RAMPs)

BacMam-packaged RAMP1, RAMP2, and RAMP3. These proteins can regulate the function and specificity of G-protein-coupled receptors – influencing their trafficking, ligand selectivity, and signaling. BacMam viruses are easily co-transduced, allowing RAMPs to be expressed alongside Montana Molecular’s suite of GPCR signaling assays and expression vectors, including the Calcitonin Receptor-like Receptor (also known as CRLCR, CALCRL, or CRLR).

 

Figure showing pseudovirus antibody blocking experiment

Optogenetic Toolkit

A suite of ion channels and bPAC enzyme, an adenylyl cyclase that will rapidly create cAMP when stimulated with blue light. Use to optically control cAMP levels in cells or to create optically excitable HEK293 cells.

 

Figure showing pseudovirus antibody blocking experiment

SARS-CoV-2 Host Proteins

Spike protein on SARS-CoV-2 interacts with the ACE2 receptor on the host cell to initiate viral entry, but other host factors are also involved. Host cell factors that are reported to work with ACE2 in SARS-COV-2 entry are now available in BacMam vectors, including Cathepsin-L, Neuropilin-1, and TMPRSS2. BacMam is a BSL-1 baculovirus that provides safe, efficient and controllable delivery to practically any cell type. Combine with Pseudo SARS-CoV-2 for COVID19 investigation and discovery.

 

Figure showing ACE2 and pseudovirus assay overview