Bio-Techne
A History of Quality
Since 1985, R&D Systems has put quality at the heart of its protein manufacturing to meet the strictest quality control standards. We can express and purify even the most challenging proteins with industry-leading bioactivity, and ensure reproducibility for your requirements.
 
 
Proteins
 
Recombinant Proteins
 
Our portfolio includes cytokines and growth factors, proteins for studying immuno-oncology targets, enzymes, animal-free and GMP-grade proteins, custom protein development services, and more.
 
 
Cell Culture
 
See Also: Cell Culture Media Supplements
 
We offer media supplements to support commonly-used laboratory cell lines as well as for more specialized cells, such as primary neurons, stem cells, and organoids.