Ten expression platforms under one roof
Prokaryotic, yeast, insect, mammalian and cell-free systems all sit in-house. The molecule decides the host — never the other way round.
BOT Bioscience
Assay-Ready Proteins & Antibodies
More than 10,000 recombinant proteins ready to ship from ten expression platforms — alongside monoclonal and polyclonal antibodies, CD antigens and matched pairs, with custom production routes for diagnostic development.
- ≥95% HPLC purity
- Lot-specific CoA
- RUO grade
- Ships in 1–3 business days
Catalogue panelIN STOCK
≥95%HPLC purity, catalogue proteins
1–3 dDispatch from Beijing for stock items
10,000+Proteins held in stock
50+Distribution partners worldwide
35Countries served
10+Expression platforms
Featured Products
Everything we list is made and quality-checked on our own benches. That means the data sheet in your box reflects the exact vial you opened today — not a summary of a batch shipped years ago.
Seven reagent lines, one standard of quality
- Proteins
Recombinant Proteins
Growth factors, cytokines and antigens produced across E. coli, yeast, insect and mammalian hosts — over 10,000 items on the shelf and ready to move.
View details - Proteins
Native Proteins
Isolated directly from natural sources, preserving native post-translational modifications and conformational epitopes that recombinant systems can miss.
View details - Antibodies
Monoclonal Antibodies
Recombinant and hybridoma clones characterised for Western blot, IHC, immunofluorescence, ELISA and flow cytometry — application data included.
View details - Antibodies
Polyclonal Antibodies
Rabbit and goat sera raised against multi-epitope targets for broad recognition, with custom immunisation campaigns available from your antigen.
View details - Antigens & CD Reagents
CD Proteins & CD Antibodies
A CD antigen and anti-CD panel built for immunophenotyping, cell sorting and CAR-T research workflows.
View details - Antibodies
Matched Antibody Pairs
Capture–detection pairs pre-screened in sandwich ELISA, CLIA and lateral-flow formats, selected for low background and strong signal.
View details - Antigens & CD Reagents
Small Molecule Antigen & Antibody
Hapten design, carrier conjugation and antibody generation for therapeutic drug monitoring, food-safety testing and environmental residue analysis.
View details
Custom services
Not in the catalogue? We'll build it.
Custom projects clear the same QC release bar as catalogue items. The route to the product changes — the paperwork standard never does.
Rabbit Polyclonal Antibody Production
From antigen design through affinity-purified antiserum in 8–12 weeks, with ELISA titre curves documented at every bleed.
Custom Peptide Synthesis
Peptides from 5–50 mg delivered at ≥95% HPLC purity, with KLH, BSA or OVA conjugation available for immunisation use.
E. coli Protein Expression & Purification
Construct design to ≥90% pure protein — covering soluble expression screens, inclusion-body refolding and tag removal.
Ten expression platforms
We match the host to the molecule — its solubility profile, glycosylation needs and end use — rather than forcing every target through whichever system is free.
- E. coliRapid turnaround, low cost, no glycosylation
- Pichia pastorisHigh-density culture with secreted expression; mannose-type glycans
- Saccharomyces cerevisiaeGRAS-status host suited to food and feed applications
- Sf9 / baculovirusInsect-cell glycosylation at high yield
- High FiveStrong secretion performance for recombinant proteins
- HEK293Human-type glycosylation, ideal for receptors
- CHOMammalian expression at therapeutic-development grade
- NS0Stable mammalian production lines
- Wheat germ cell-freeOpens the door to membrane proteins and toxic targets
- Rabbit reticulocyte lysateQuick small-scale synthesis
Why BOT
Built to work like part of your lab
Lot-level documentation, not catalogue claims
Each shipment arrives with the full record for that specific lot — purity gels, HPLC traces, activity assays and, for antibodies, the application image run on the same lot.
Custom work treated as product work
Bespoke peptides, proteins and antibodies are released against the same QC criteria as catalogue products. Custom route, identical standard.
Technical support from the people who made it
Buffer troubleshooting or a stubborn Western blot gets answered by the scientist who ran the production batch — not routed to a generic support queue.
Publications & citations
Cited in peer-reviewed research
A sample of recent publications whose methods sections reference BOT reagents. Each title links to the publisher's record.
- 2024Unraveling the toxicity mechanisms of nanoplastics with various surface modifications on Skeletonema costatum: Cellular and molecular perspectives
- 2023Directional surface plasmon polariton scattering by single low-index dielectric nanoparticles: simulation and experiment
- 2022Submicron-size polystyrene modulates amyloid fibril formation: from the perspective of protein corona
Next step
Tell us the target, we will tell you what is feasible
Send the sequence, assay format and sensitivity you need. You will get a technical assessment — recommended platform, timeline and the risks worth knowing before you commit budget.