Custom work, quoted in 24 hours.
The shelf catalog is not exhaustive. For constructs, formulations, and ligands outside it, request a quote on this page.
Every custom request gets a quote back within 24 hours, business days.
Construct
Expression
Purification
Analysis
Fill
Cold chain
Check the catalog first.
Custom protein expression
We express your construct and release it like a catalog protein.
What you configure- Construct
- Your sequence, an accession, or a plasmid you already have. We codon-optimize for the host.
- Expression host
- E. coli, HEK293, or CHO. Tell us the application and we will recommend one.
- Tag strategy
- His, GST, MBP, SUMO, or Fc, and whether the tag has to come off.
- Purity target
- ≥95% by SDS-PAGE is the usual ask. ≥98% costs another polish step.
- Endotoxin target
- In EU per mg or per µg. Low-endotoxin routes are quotable.
- Formulation
- Final buffer, pH, salt, stabilizers, and target concentration.
- Fill format
- Lyophilized vial size and cake format by default. Liquid fill, aliquot count, and cold-chain requirements can be quoted when the molecule is not yet validated for lyophilization.
- Scale
- A few hundred micrograms up to grams.
- 1Submit
- 2Quote in 24 hours
- 3Spec confirmation
- 4Production
- 5Release & ship
Lead time is in the quote within 24 hours. We email you if the schedule slips.
The form goes to production staff.
- Response
Within 24 hours, business days.
- Minimum
Ask for what you need.
- Confidentiality
Mutual NDA on request. Tick the box.
- Status
Research use only. Not for diagnostic or therapeutic use.
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Technical FAQ
What can you not take on?
We take RUO custom work. We do not take GMP, clinical, diagnostic, or in-human projects. You hear back within 24 hours either way.
How do you handle confidentiality and IP?
Mutual NDA on request. Tick the box and we send one with your acknowledgement. Your sequences stay yours.
If I ship you material, does it stay mine?
Yes. Material you send stays yours. We return what is left or discard it the way you instruct on the form.
Does my custom item become a catalog product?
Not unless you ask. Custom lots stay off the catalog. Ask if you want a reorder part number.
Are custom items research-use-only?
Yes. Custom material carries the same status as the catalog: for research use only, not for diagnostic or therapeutic use.
What about repeat or scheduled orders?
Reordering is a purchase order against the signed specification from the first lot. Tell us interval and volume for a schedule.
The QC that gates release
Custom lots use the same release assays as the catalog.
Manufacturing →How a lot gets made
Expression through fill and lot numbering.