Low background expression
During normal growth, SwitchBlade is designed to maintain minimal expression of defense-associated proteins, reducing unnecessary metabolic burden.
Technology
SwitchBlade. Programmable translation control for smarter crop resilience.
SwitchBlade is Upstream's approach to controlling when and where proteins are produced within a plant. Rather than changing what proteins a plant can make, SwitchBlade changes when, where, and to what extent those proteins are produced in response to endogenous plant signals associated with disease and environmental stress. This enables crops to deploy protective proteins only when they are needed, strengthening resilience while preserving agronomic performance.
Biological insight
Plant immunity is powerful. It is also expensive.
When plants face pathogens or environmental stress, they can reprogram growth, metabolism, and gene expression to defend themselves. That defense response is essential, but keeping it activated all the time can create a performance cost.
This is the central challenge in crop-resilience trait development: strengthen defense without imposing a constant growth penalty. SwitchBlade addresses that challenge by adding a programmable layer of translational control.
The differentiator
Control at translation, not just transcription.
Conventional crop traits are often expressed constitutively from the point of transcription, which can impose a persistent metabolic cost and contribute to yield drag. SwitchBlade acts at translation, enabling protective proteins to be produced only when and where they are needed.
HOW IT WORKS
The SwitchBlade Platform
SwitchBlade utilises engineered RNA elements that regulate protein synthesis in response to endogenous plant signals. Acting as a molecular gate, the platform helps determine when and where protective proteins are produced.
Responsive activation
When disease or environmental stress triggers endogenous signaling pathways, engineered RNA elements alter protein production in response to the changing cellular environment.
Protective protein production
SwitchBlade increases production of protective proteins only under appropriate biological conditions, helping crops respond when challenged.
Performance-aware design
By avoiding constant activation, the platform is designed to preserve agronomic performance while enhancing crop resilience.
Why translation control matters
A better control layer for complex traits.
Many crop traits fail not because the biological target is ineffective, but because protein expression lacks sufficient precision. Constitutive expression can reduce plant performance, while inadequate or poorly timed expression may fail to provide meaningful protection. SwitchBlade provides an additional layer of control over when and where protein is produced, enabling more precise deployment of complex traits.
Temporal precision
Produce protective proteins only during relevant disease or environmental stress.
Spatial precision
Concentrate protein production in challenged tissues where it provides the greatest benefit.
Tunable expression
Adjust expression dynamics for different genes, crops, and commercial applications.
Platform flexibility
Designed for deployment across multiple crops, diverse protein targets, and seed company development programs.
Applications
Where the platform can go.
Disease resistance
Traits designed to enhance crop defense against economically significant pathogens.
Abiotic stress resilience
Programs aimed at improving crop response under challenging environmental conditions.
Trait optimization
Quality Enhancement. Programmable translation control applied to improve expression of traits influencing quality, composition, and end-use value.
Partner-defined crop programs
Collaborations with seed companies seeking improved performance in priority crops.
Built for translation
Designed for the field, not just the lab.
Our objective is to create crop traits that can survive the realities of commercial agriculture: transformation, greenhouse screening, field validation, regulatory review, seed-partner integration, and grower adoption.