Get an SPR Assay Quote
Tell us your target and analyte — we'll scope a label-free kon/koff/KD measurement and route it to a qualified lab in the network. No back-and-forth with sales, no vendor hunting.
What you submit. What you get back.
What we need to send you an accurate quote
Most SPR quotes are scoped within a day when we have these details up front. If you're not sure about something, submit anyway — the lab will follow up before committing to a run.
- ✓ Target protein identity, construct, and species
- ✓ Analyte identity — small molecule, peptide, or protein
- ✓ Whether purified protein is already in hand or needs sourcing
- ✓ Expected affinity range, if known (nM, µM, etc.)
- ✓ Buffer or solubility constraints on the analyte
- ✓ Target timeline for results
Who requests SPR quotes from Litmus
Hit Validation & Triage
Confirm binding to the intended target for computational hits before investing in cellular assays. Separate true binders from false positives early.
Lead Optimization & SAR
Measure how structural modifications affect kon, koff, and KD to guide medicinal chemistry decisions with quantitative biophysical data.
Fragment Screening
Screen fragment libraries against a target protein to identify low-affinity binders for FBDD programs that require biophysical confirmation.
Ready to scope your SPR run?
Start your request in the Litmus platform — tell us your target and analyte, and a qualified lab will confirm surface chemistry and turnaround.
Start Your SPR Quote →Or email us directly. No spam, ever.