Custom Recombinant Proteins for Challenging Drug Targets

Access functional membrane and soluble proteins developed for demanding discovery programs, including GPCRs, ion channels, transporters, kinases, and other complex targets.

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End-to-End Protein Science for Smarter Discovery

From recombinant protein development to biophysics and structural biology, generate the high-quality data needed to accelerate confident drug discovery decisions.

Explore Our Protein Science Services

From Binder Discovery to Mechanistic Understanding

Characterize binding affinity, kinetics, stability, and mechanism of action using integrated biophysical technologies that transform interaction data into actionable decisions

Accelerate Kinase Drug Discovery with Quality Proteins

Discover ready-to-use kinase proteins produced to deliver reliable performance across screening, profiling, and mechanistic studies

Browse Kinase Products
With 750+ successful protein projects and a PhD-level experts team, Calixar succeeds where others fail, delivering fully native proteins that determine your drug discovery success from day one.

Welcome to Calixar, part of Eurofins Discovery & DiscoverX

Eurofins Discovery delivers best-in-class drug discovery solutions to organizations of all sizes, supporting programs at every stage of preclinical research.Eurofins DiscoverX offers validated cell-based assays, and our combined expertise over 40 years, 10,000+ assaysDrive smarter decisions from individual services to fully integrated solutions.

A wide range of Active Protein portfolio Out of the Shelves

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500+ kinases, phosphatases, ubiquitins & epigenetic proteins, plus ready-to-use GPCRs, transporters & ion channels—expert-backed for immediate discovery.

CK1a Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

CDK17/cyclin Y Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

CDK16/cyclin Y Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

SRMS Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

ICK Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

HIPK4 Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

DYRK3 Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

LTK Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

TrkC Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

Txk Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

CK1a Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

CDK17/cyclin Y Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

CDK16/cyclin Y Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

SRMS Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

ICK Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

HIPK4 Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

DYRK3 Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

LTK Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

TrkC Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

Txk Kinase Enzyme Activity Assay Kit

Target Species :
Human
Kinase

Welcome to Calixar, part of Eurofins Discovery & DiscoverX

Eurofins Discovery delivers best-in-class drug discovery solutions to organizations of all sizes, supporting programs at every stage of preclinical research.Eurofins DiscoverX offers validated cell-based assays, and our combined expertise—over 40 years, 10,000+ assaysDrive smarter decisions from individual services to fully integrated solutions.

Questions & answers

Frequently Asked Questions about Protein Production and Characterization

What makes Calixar proteins "native" and fully functional ?
Which protein types do you deliver ?
Do you handle difficult, low-expression targets ?
What if my target has failed elsewhere ?
Can I get just proteins or the full protein science workflow ?