Directional manufacturability + cost intelligence, not a predictor. Ranks and reasons with cited literature — NOT an absolute titer or $/g prediction. Absolute titer/recovery/scale-up/cleaning must go to the bench.
Why we built this
Design quality is only the first question. Downstream lives the expensive one: fermentation, separation and purification (DSP), and economics. Until now no tool answered it with cited, auditable evidence rather than a black-box estimate. This panel extends Kairos from “design a construct” to “design a construct you can afford to make”.
What the panel computes — all dry-lab, all cited
- DSP sequence — protein class × purity tier (
food/high/pharma) × secretion mode, each step recovery from the literature. - Step-wise recovery —
90% × 90% × 85% = 68.9%; five 90% steps collapse to 59%. - Directional TEA — COGS vs benchmark, four parity tiers.
- Composite score —
host-fidelity × total recovery. - Manufacturability audit — four hard WARNs + directional verdicts.
A real run: phytase in Pichia
The MVP class is industrial enzyme, whose process data is the most public:
- Host Pichia (K. phaffii) · titer 10–30 g/L.
- DSP (food, secreted) centrifugation → UF-DF → spray drying = 68.9%.
- COGS $5–15/kg vs $5–50/kg → in-range parity.
- Composite 0.92 × 0.689 = 0.63.
The four hard WARNs sit beside those numbers.
A correction worth stating
“DSP is 50–80% of cost” is wrong for food-grade precision fermentation. Food-grade fermentation, which drops chromatography, is 15–20% of COGS.
Honest boundaries
The panel is directional, not a predictor. Absolute titer/recovery/scale-up/cleaning are hard-coded WARN.
What this step means
Kairos’s workbench now spans the full dry-lab arc — evidence, design, structure, audit, and now manufacturability.
References
- Barone GD, et al. Industrial Production of Proteins with Pichia pastoris. Biomolecules, 2023. PMC10046876
- Keppler JK, et al. Downstream Processing of Food Proteins from Precision Fermentation. Annu Rev Food Sci Technol, 2024. annurev-food-060424-091647
- Liu HF, et al. Recovery and purification process development for monoclonal antibody production. mAbs, 2010. PMID:20798573
- Straathof AJJ. The Proportion of Downstream Costs in Fermentative Production. TU Delft.
- GFI. Techno-economic insights on fermentation ingredients.
- Synthesis Capital. Precision fermentation: pathways to cost parity.